Filed by Bowne Pure Compliance
 

 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER TO RULE 13A or 15D-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the Month of: January, 2008
File No.: 000-13727
PAN AMERICAN SILVER CORP.
 
(Translation of Registrant’s Name into English)
Suite 1500, 625 Howe Street Vancouver British Columbia, Canada V6C 2T6
 
(Address of Principal Executive Office)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20F or Form 40F: Form 20F o Form 40F þ
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1). Yes o No þ
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7). Yes o No þ
Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
Yes o No þ
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with rule 12g-3-2(b): 82            .
 
 

 

 


 

Submitted herewith:
  1.  
Form 43-101 Technical Report for the Huaron Property.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
         
  PAN AMERICAN SILVER CORP.
 
 
Date: January 30, 2008  “Robert Pirooz”    
  General Counsel   
     
 

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
(PAN AMERICAN LOGO)
43-101 Technical Report
Huaron Property
Cerro de Pasco, Peru
Effective Date: December 31, 2006
Prepared By:
Martin Wafforn, P. Eng.
Michael Steinmann, P.Geo.
         
- 1 -43-101(PanAm)       Huaron Mine
         
 


 

     
(LOGO)   (PAN AMERICA LOGO)
Table of Contents
         
1. TITLE PAGE
    7  
 
       
2. TABLE OF CONTENTS
    8  
 
       
3. SUMMARY
    9  
 
       
3.1 Background
    9  
3.2 Property Description, Location, and Ownership
    9  
3.3 Geology and Mineralization
    10  
3.4 Exploration and Development
    11  
3.5 Mineral Resource and Mineral Reserve Estimates as at December 31, 2006
    12  
3.6 Mining Operations
    13  
3.7 Authors’ Conclusions
    14  
3.8 Authors’ Recommendations
    15  
 
       
4. INTRODUCTION
    16  
 
       
5. RELIANCE ON OTHER EXPERTS
    18  
 
       
6. PROPERTY DESCRIPTION AND LOCATION
    19  
 
       
6.1 Introduction
    19  
6.2 Mineral Tenure
    20  
6.3 Property Ownership
    36  
6.4 Agreements
    36  
6.5 Permits
    37  
6.5.1 Water Use Permit for Mining
    37  
6.5.2 Water Use Permit for Human Consumption
    37  
6.5.3 Permit to Release Effluents
    37  
6.5.4 The Domestic Landfill Permit
    37  
6.5.5 The Operating Permit
    38  
6.5.6 Tailings Storage Permits
    38  
6.5.7 Acquisition and Use of Explosives Permit
    38  
6.5.8 Archaeology Certificates
    38  
6.6 Liabilities
    39  
6.6.1 Mine Closure
    39  
6.6.2 Acid Rock Drainage and Metal Laden Waters
    40  
6.6.3 Containment and Stability of Tailing Impoundments
    40  
 
       
7. ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY
    41  
 
       
7.1 Accessibility
    41  
7.2 Climate and Physiography
    41  
7.3 Local Resources and Infrastructure
    42  
7.3.1 Manpower
    42  
7.3.2 Infrastructure
    42  
 
       
8. HISTORY
    44  
 
       
9. GEOLOGICAL SETTING
    46  
 
       
9.1 Regional Geology
    46  
9.2 Local Geology
    46  
9.2.1 Lithostratigraphy
    47  
         
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(LOGO)   (PAN AMERICA LOGO)
         
9.2.2 Structural Geology
    48  
 
       
10. DEPOSIT TYPE
    50  
 
       
11. MINERALIZATION
    52  
 
       
11.1 Mineral Zones
    52  
 
       
12. EXPLORATION
    54  
 
       
13. DRILLING
    56  
 
       
14. SAMPLING METHOD AND APPROACH
    64  
 
       
14.1 Introduction
    64  
14.2 Sampling Procedures
    65  
14.2.1 Drill Core Samples
    65  
14.2.2 Channel Samples
    66  
14.2.3 Numbering System
    67  
 
       
15. SAMPLE PREPARATION, ANALYSIS AND SECURITY
    68  
 
       
16. DATA VERIFICATION
    72  
 
       
17. ADJACENT PROPERTIES
    73  
 
       
18. MINERAL PROCESSING AND METALLURGICAL TESTING
    74  
 
       
18.1 Plant Improvement Projects
    79  
18.1.1 Grinding Circuit
    79  
18.1.2 Flotation Circuit
    79  
18.1.3 Authors’ Comments
    80  
 
       
19. MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES
    81  
 
       
19.1 Specific Gravity
    82  
19.2 Erratic Values
    82  
19.3 Criteria for Resource definition
    82  
 
       
20. OTHER RELEVANT DATA AND INFORMATION
    87  
 
       
21. INTERPRETATION AND CONCLUSIONS
    88  
 
       
22. RECOMMENDATIONS
    90  
 
       
23. REFERENCES
    91  
 
       
24. ADDITIONAL REQUIREMENTS FOR TECHNICAL REPORTS ON DEVELOPMENT PROPERTIES AND PRODUCTION PROPERTIES
    92  
 
       
24.1 Mining
    92  
24.1.1 Mine Layout
    92  
24.1.2 Mining Method
    92  
24.2 Processing
    93  
24.2.1 Crushing
    94  
24.2.2 Grinding and Classification
    94  
24.2.3 Flotation
    94  
24.2.4 Filtration
    95  
         
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24.2.5 Reagents Used in the Plant
    96  
24.3 Metal Recovery
    96  
24.4 Tailings Management
    97  
24.5 Environmental Considerations
    98  
24.5.1 Mine Water Drainage
    98  
24.5.2 Monitoring Program and Inspections
    99  
24.5.3 Closure Plan
    99  
24.6 Markets and Contracts
    100  
24.7 Contracts
    101  
24.8 Taxes
    102  
24.8.1 Fiscal Depreciation Rates
    102  
24.8.2 Income Tax and Workers’ Participation
    102  
24.8.3 Value Added Taxes
    102  
24.8.4 Mining Royalties
    102  
24.8.5 Voluntary Contributions
    103  
24.9 Capital and Operating Costs
    103  
24.9.1 Capital Costs
    103  
24.9.2 Operating Costs
    104  
24.9.3 Economic Analysis
    106  
24.9.4 Metal Price Sensitivity
    109  
24.9.5 Grade Sensitivity
    109  
24.9.6 Capital Cost Sensitivity
    110  
24.9.7 Operating Cost Sensitivity
    110  
24.10 Mine Life
    110  
 
       
25.0 DATE AND SIGNATURE PAGE
    111  
 
       
26.0 FIGURES
    112  
 
       
         
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List of Tables
             
Table 3-1:
  Huaron Mineral Reserves     12  
Table 3-2:
  Huaron Mineral Resources     13  
Table 4-1:
  References     17  
Table 6-1:
  Mining Concessions     26  
Table 6-2:
  Concessions that were reviewed by Rodrigo, Elias & Medrano     32  
Table 6-3:
  Existing Surface Rights     35  
Table 8-1:
  Summary of costs to re open the Huraon operations     45  
Table 10-1:
  Mineralized Structures     51  
Table 12-1:
  Summary of 2006 and 2007 (to September) Diamond Drilling Exploration     55  
Table 13-1:
  Result from 2006 Underground Diamond Drilling     57  
Table 13-2:
  Result from 2007 Underground Diamond Drilling     61  
Table 15-1:
  Certified Standard Value     70  
Table 15-2:
  Monthly Average Assay Results of Inserted Standards     70  
Table 18-1:
  Life of Mine Head Grade Projections     78  
Table 18-2:
  Life of Mine Recovery Projections     78  
Table 18-3:
  Life of Mine Concentrate Projections     79  
Table 19-1:
  Variogram Parameters     81  
Table 19-2:
  Applied specific gravity used for different veins at Huaron     82  
Table 19-3:
  Resource Metal Price and Factors     84  
Table 19-4:
  Reserve Cut Off Values     84  
Table 24-1:
  Typical Reagent Consumption Rates     96  
Table 24-2:
  Asset Retirement Obligation     100  
Table 24-3:
  Concentrate Revenues 2006     101  
Table 24-4:
  List of Existing Sale Contracts     101  
Table 24-5:
  Life of Mine Capital Expenditure Estimate     103  
Table 24-6:
  Year 2006 Budget and Actual Operating Costs     104  
Table 24-7:
  Life of Mine Operating Cost Projections     105  
Table 24-8:
  Economic Model     107  
Table 24-9:
  Metal Price Sensitivity     109  
Table 24-10:
  Metal Grade Sensitivity     109  
Table 24-11:
  Capital Cost Sensitivity     110  
Table 24-12:
  Operating Cost Sensitivity     110  
         
43-101(PanAm)   Huaron Mine   5
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
List of Figures
             
Figure 6-1A:
  Location Map of Huaron Mine (in Peru)     112  
Figure 6-1B:
  Location Map of Huaron Mine (in Cerro de Pasco)     113  
Figure 6-2A:
  Huaron Mine Property Layout     114  
Figure 6-2B:
  Huaron Mine Infrastructure Layout     115  
Figure 6-3:
  Mineralized Veins and Structures     116  
Figure 6-4A:
  Boundaries of Mining Concessions     117  
Figure 6-4B:
  Map of Huaron Mine     118  
Figure 9-1A:
  Regional Geology     119  
Figure 9-1B:
  Local Geology     120  
Figure 11-1:
  Generalized Parangenesis     121  
Figure 11-2:
  Mining Zoning     122  
Figure 18-1:
  Reconfiguration of Grinding Circuit     123  
Figure 18-2:
  Reconfiguration of Bulk Flotation Circuit     124  
Figure 18-3:
  Reconfiguration of the Cu/Pb Flotation Circuit     125  
Figure 18-4:
  Reconfiguration of the Zinc Flotation Circuit     126  
Figure 19-1A:
  Variogram Analysis Alianza Vein     127  
Figure 19-1B:
  Variogram Analysis Topada Vein     128  
Figure 19-1C:
  Variogram Analysis Cometa Vein     129  
Figure 25-1:
  Generalized Longitudinal Section of the Mine     130  
Figure 25-2A:
  Cut and Fill Mechanized Method with Slusher     131  
Figure 25-2B:
  Cut and Fill Mechanized Method with Scoop Tram     132  
Figure 25-3A:
  Plant Flow Diagram     133  
Figure 25-3B:
  Plant Components List     134  
List of Graphs
             
Graph 10-1A:
  Distribution of Reserves by Deposit Type - Silver     135  
Graph 10-1B:
  Distribution of Reserves by Deposit Type - Cu/Pb/Zn     136  
Graph 11-1:
  Distribution of Silver by Silver Bearing Ore     137  
Graph 11-2A:
  Distribution of Silver by Silver Bearing Ore - Silver     138  
Graph 11-2B:
  Distribution of Silver by Silver Bearing Ore - Cu/Pb/Zn     139  
Graph 15-1A:
  2006 Silver Assay Results of Inserted Blanks     140  
Graph 15-1B:
  2006 Lead Assay Results of Inserted Blanks Huaron Lab     141  
Graph 15-1C:
  2006 Zinc Assay Results of Inserted Blanks Huaron Lab     142  
Graph 15-2A:
  2007 Assay Results of Inserted Standards     143  
Graph 15-2B:
  2007 Copper Assay Results of Inserted Standards     144  
Graph 15-2C:
  2007 Lead Assay Results of Inserted Standards     145  
Graph 15-2D:
  2007 Zinc Assay Results of Inserted Standards     146  
Graph 15-3A:
  Scatter Plot of Check Assays - Silver     147  
Graph 15-3B:
  Scatter Plot of Check Assays - Copper     148  
Graph 15-3C:
  Scatter Plot of Check Assays - Lead     149  
Graph 15-3D:
  Scatter Plot of Check Assays - Zinc     150  
Graph 15-4A:
  Thompson - Howard Graphs - Silver     151  
Graph 15-4B:
  Thompson - Howard Graphs - Copper     152  
Graph 15-4C:
  Thompson - Howard Graphs - Lead     153  
Graph 15-4D:
  Thompson - Howard Graphs - Zinc     154  
Graph 19-1A:
  December 2006 Reserves - Silver     155  
Graph 19-1B:
  December 2006 Reserves - Cu/Pb/Zn     156  
         
43-101(PanAm)   Huaron Mine   6
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
1. Title Page
This Technical Report has been prepared in accordance with National Instrument 43-101 — Standards of Disclosure for Mineral Projects (“NI 43-101”) and the contents herein are organized and in compliance with Form 43-101F1 - Contents of the Technical Report (“Form 43-101F1”). The first two items are the Title Page and the Table of Contents presented previously in this report. They are mentioned here simply to maintain the specific report outline numbering required in Form 43-101F1.
         
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(LOGO)   (PAN AMERICA LOGO)
2. Table of Contents
See discussion in Section 1.
         
43-101(PanAm)   Huaron Mine   8
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
3. Summary
3.1 Background
Pan American Silver Corporation (“PAS”) prepared this Technical Report in support of its public disclosure of mineral reserve and mineral resource estimates as of 31 December 2006, as required by NI 43-101.
Mr. Martin Wafforn, P. Eng., Vice President of Mine Engineering of PAS, and Dr. Michael Steinmann, P. Geo., Senior Vice President of Exploration and Geology of PAS, are authors of this Technical Report. Each of Mr. Wafforn and Dr. Steinmann is a Qualified Person (“QP”) as the term is defined in NI 43-101.
3.2 Property Description, Location, and Ownership
Following a merger with Cia. Minera Huaron S.A. in January 2006, the Huaron property has been owned and operated by Pan American Silver S.A. Mina Quiruvilca, a company that PAS indirectly through its subsidiaries, owns 100% of the outstanding voting shares and 99.93% of the total outstanding equity. The Huaron operating unit or Unidad Huaron of Pan American Silver S.A. Mina Quiruvilca is referred to as “PASH” in this report. Pan American Silver S.A.C. Mina Quiruvilca and Cia Minera Huaron S.A. merged to form the new Pan American Silver S.A. Mina Quiruvilca (“PASQ”) effective January 2006.
Huaron Mine is a polymetallic silver-copper-lead-zinc deposit, located in the province of Pasco, one of three provinces forming the Pasco Department in the Central Highlands of Peru. The nearest town is Cerro de Pasco, a major mining center, and the capital of the Pasco Department with a population of approximately 70,000 people. Cerro de Pasco is connected to Lima, the capital of Peru, by road and rail.
Geographically, the Huaron Mine is located at a latitude of 11º00’S and a longitude of 76º25’W in the eastern flank of the Western Cordillera of the Andes at elevations of 4,250 metres to 4,800 metres above sea level. Access to the Huaron property is by a continuously maintained 285 kilometre paved highway between Lima and Unish and a 35 kilometre partially paved road between Unish and the Huaron property. A program by the Peru government to upgrade the road to a paved highway between Unish and the Huaron property is partially complete.
The topographical relief at the mine-site is hilly and uneven with local slopes of more than sixty degrees. Natural vegetation consists mainly of grasses forming meadows. These meadows have permitted development of varied livestock operations. The climate at the mine site is classified as a “cold climate” or “boreal” with an average annual temperature ranging from three to ten degrees Celsius. The Huaron Mine operates throughout the entire year.
The property consists of 252 concessions spanning over 63,822.2 ha. PASH has the exclusive right on all of the concessions to explore, develop and exploit as well as the right to market the products. Currently, annual concession fees are $3 per hectare.
         
43-101(PanAm)   Huaron Mine   9
         

 


 

     
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3.3 Geology and Mineralization
The main lithology in the Huaron area is a sequence of continental “redbeds” consisting of interbedded sandstones, limestones, marls, conglomerates, breccias and cherts of the Abigarrada and Casapalca Formations of Upper Cretaceous to Lower Tertiary age. These rocks unconformably overlay massive marine limestones of the Upper Cretaceous Jumasha Formation. To the west of the mine, a series of andesites and dacites outcrop, which are of the mid to lower Tertiary Calipuy Formation. A series of sub-vertical porphyritic quartz monzonite dykes, generally strike north-south and cut across the mine stratigraphy.
The rocks in the central part of the mine and at lower elevations are principally thinly bedded marls and sandstones known as the lower redbeds. In the eastern side of the mine the upper redbeds occur consisting of a calcareous Sevilla chert that overlies sandstones and marls. The bottom of this sequence consists of the Barnabe quartzite conglomerate. On the western side of the mine, the stratigraphy consists of a series of interbedded conglomerates (San Pedro) and sandstones. The conglomerate contains poorly sorted limestone and quartz clasts in a sandy matrix.
The Huaron Mine is located within an anticline formed by east-west compressional forces. The axis of the anticline is approximately north-south striking and gently plunging to the north. There are two main fault systems: (i) north-south striking thrust faults parallel to the axis of the anticline; and (ii) east-west striking tensional faults. The intrusives strike in two principal directions: N70°E and S10°E. Most of the area is covered with recent soils except where the more resistant cherts and conglomerates form ridges parallel to the flanks of the anticline. These outcrops are discontinuous and are frequently offset by the crosscutting east-west faults.
The Huaron Mine is a polymetallic deposit (hosting silver, lead, zinc and copper) consisting of mineralized structures probably related to Miocene monzonite dykes principally within, but not confined to the Huaron anticline. Mineralization is encountered in veins parallel to the main fault systems, in replacement bodies associated with the calcareaous sections of the conglomerates and other favorable stratigraphic horizons, and as dissemination in the monzonitic intrusions at vein intersections.
The first pulse of mineralization was associated with the emplacement of intrusive bodies and the subsequent opening of structures, during which zinc, iron, tin, and tungsten minerals were deposited. This was followed by a copper, lead and silver rich stage, and finally by an antimony/silver phase associated with quartz.
More than 95 minerals have been identified at Huaron with the most important economic minerals being tennantite-tetrahydrite containing most of the silver, sphalerite and galena. The principal gangue minerals are pyrite, quartz, calcite and rhodochrosite. Enargite and pyrrhotite are common in the central copper core of the mine and zinc oxides and silicates are encountered in structures with deep weathering. Silver is also found in pyrargyrite, proustite, polybasite and pearceite.
         
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There is a definite mineral zoning at Huaron and the mine has been divided into seven separate zones. There is a central copper core (Zone 5) where the principal economic mineral is enargite. The structures contain copper with pyrite and quartz. This area was extensively mined by previous operators but, because of the high arsenic and antimony content and poor metal recoveries, further mining in this area could be problematic. To the east and west of the central core are Zones 2, 3 and 4 where silver, lead and zinc are found in carbonates, principally calcite and rhodochrosite. Zone 1 to the north of the central core contains silver, lead and zinc associated with pyrite. Zone 6 is along the west side of the axis of the anticline and south of Zone 2 is principally lead and zinc with lower silver values within carbonates. Zone 7 is a narrow band running north-south along the general axis of the anticline and to the south of Zone 3 and contains principally sphalerite and sulfosalts with rhodochrosite.
The central core of the district has adularia-sericite alteration overprinted with strong silicification and epidote-pyrite. This core is surrounded by a zone containing epidote-pyrite-quartz that grades outwardly to a zone containing chlorite and magnetite. The mineralized structures are concentrated in the central core of the district but important structures continue into the outer zones.
3.4 Exploration and Development
Exploration at the Huaron property is conducted using a combination of underground drilling and drifting. Generally, underground drillholes that intersect promising ore grade mineralization are followed up by drifting for mineral resource and mineral reserve definition. During 2006, 11,451 metres were drilled using three drill rigs. In addition, 6,256 metres of underground drifting were completed for mineral resource and mineral reserve definition.
In addition to the underground drilling a smaller amount of surface drilling is executed every year. In 2006 141 metres of BQ sized surface diamond drilling was done. As of September 30, 2007, no surface drill-holes have been drilled in 2007.
PASH employs their own exploration drilling crew for diamond drilling using two drill rigs. In addition, PASH is currently contracting Redrilsa S.A, a large Peruvian diamond drilling contractor. All exploration drilling is directed and supervised by the Huaron Mine geology department and periodically reviewed by Dr. Michael Steinmann, P. Geo., Senior Vice President of Exploration and Geology of PAS.
3.5 Mineral Resource and Mineral Reserve Estimates as at December 31, 2006
The mineral reserve estimate for Huaron (Table 3-1) as of December 31, 2006 was prepared by, or under the supervision of Dr. Michael Steinmann, P.Geo., Senior Vice President Geology & Exploration, and Mr. Martin Wafforn, P.Eng, Vice President of Mine Engineering of PAS.
Table 3-1: Huaron Mineral Reserves
                                                 
Reserve           Silver     Ag Content                    
Category   Tonnes     (g/t)     (ounces)     % Copper     % Lead     % Zinc  
Proven     4,638,300       184       27,438,944       0.31       1.57       3.16  
Probable     4,048,556       183       23,820,012       0.21       1.79       3.21  
Total     8,686,856       184       51,258,956       0.26       1.67       3.18  
         
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(LOGO)   (PAN AMERICA LOGO)
Notes:  
 
 
1)  
PAS‘ share is 100% of the total mineral reserves,
 
2)  
Huaron’s mineral reserves have been estimated on the basis of blocks exposed by underground workings on one or more sides and having an in-place diluted value equal to or above the cut-off grade of $27/tonne. Proven and probable mineral reserves are extrapolated between 15 and 30 metres down dip depending on vein continuity.
 
3)  
The geological model employed for Huaron involves geological interpretations on sections and plans derived from core drill hole information and channel sampling,
 
4)  
Mineral reserves have been estimated using the O’Hara dilution formula, which typically adds 20% to 50% dilution at zero grade depending on dip angle and vein width.
 
5)  
Mineral reserves have been estimated using a mining recovery of 90% with a further 5% subtracted for other mining losses.
 
6)  
The mining and processing rate is currently 2,390 tonnes per day,
 
7)  
Environmental, permitting, legal, title, taxation, socio economic, political, marketing or other issues are not expected to materially effect the above estimate of mineral reserves
 
8)  
Calculated using a price of $9.00 per ounce of silver, $2,100 per tonne of zinc, $1,000 per tonne of lead and $5,000 per tonne of copper. See also information in this Annual Information Form under the heading “Mineral Reserve and Mineral Resource estimate information”.
The measured and indicated mineral resources at the Huaron property as of December 31, 2006 are estimated to be as shown in TABLE 3-2. This mineral resource estimate was calculated using a price of $9.00 per ounce of silver, $5,000 per tonne of copper, $1,000 per tonne of lead, $2,100 per tonne of zinc, and was prepared under the supervision of and reviewed by Mr Martin Wafforn, P. Eng., Vice President of Mine Engineering of PAS and Dr. Michael Steinmann, P. Geo., Senior Vice President of Exploration and Geology of PAS.
         
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Table 3-2: Huaron Mineral Resources
                                                 
Resource           Silver     Ag Content                    
Category   Tonnes     (g/t)     (ounces)     % Copper     % Lead     % Zinc  
Measured
    1,581,966       166       8,442,984       0.45       2.02       3.68  
Indicated
    1,168,964       174       6,539,448       0.55       1.86       3.83  
Total M&I
    2,750,930       169       14,982,433       0.49       1.95       3.74  
Notes:
1)  
PAS reports mineral resources and mineral reserves separately. Reported mineral resources do not include amounts identified as mineral reserves.
 
2)  
PAS’ share is 100% of the total mineral resources.
 
3)  
The geological model employed for Huaron involves geological interpretations on sections and plans derived from core drill-hole information and channel sampling.
 
4)  
The mining and processing rate is currently 2,390 tonnes per day.
 
5)  
Mineral resources for the principal structures are estimated with a 3 dimensional block model using Datamine software. Mineral resources for minor structures are estimated using polygonal methods on longitudinal sections.
 
6)  
Environmental, permitting, legal, title, taxation, socio economic, political, marketing or other issues are not expected to materially effect the above estimate of mineral resources.
 
7)  
Mineral resources that are not mineral reserves do not have demonstrated economic viability.
 
8)  
Calculated using a price of $9.00 per ounce of silver, $2,100 per tonne of zinc, $1,000 per tonne of lead and $5,000 per tonne of copper. See also information in this Annual Information Form under the heading “Mineral Reserve and Mineral Resource Estimate Information”.
3.6 Mining Operations
The Huaron Mine is located at an elevation between 4,250 and 4,650 metres above sea level. PAS’ mining activities extend over an area of two kilometres by two kilometres. The processing plant and mine offices are located at the same elevation as the 500 level. The 250 level is 250 metres below the 500 level and is the drainage level for the mine providing gravity drainage to a point further down a river valley. The main mine access is via a four metre by four metre ramp, which starts above the 500 level and extends to below the 250 level where a deepening project is in progress. This ramp is also used for truck haulage of ore and waste from below the 500 level. The 500 level is accessed via a 3 metre by 3 metre tracked drift that has been rehabilitated over the course of the previous three years. Electric locomotives are used for mine haulage on the 500 level. Ore from above the 500 level is either fed to that level via ore passes or taken out of the mine via other portals to be hauled to the mill stockpile with surface haul trucks. There are three existing shafts on the property, but these have not been used since the late 1980’s. A thorough analysis of the cost to refurbish shaft D has been completed and it has been assumed in this report that the shaft will be deepened to the 180 level and refurbished. The capital cost of this work and the anticipated operating cost savings are included in the economic analysis.
In 2006, stopes from 32 different veins (averaging 2.38 metres wide) were mined with approximately 77 stopes active at any given time. During 2006, the mine mechanized some of the stopes by introducing small scoop trams. This had the effect of increasing productivity and by the end of the year, only 35 stopes were required to maintain production. The mining method is 100% overhand cut-and-fill using mill tailings as the backfill material. During 2007 the mine added a small crushing and grinding circuit to provide an additional 6,000 cubic metres per month of ground waste rock to augment the coarse portion of the mill tailings used for hydraulic backfill underground.
         
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Rehabilitation of the 500 level was completed in April 2005 and the ore haulage system was changed from commercial 12 cubic metre-capacity trucks to electric locomotives for the ore transport from 500 level to surface. This will continue to result in savings in operating costs, and provide access to new zones with mineral reserves.
During 2006, 263,357 tonnes of ore was extracted from the 500 and 600 levels. It is expected that PASH will continue to extract ore from the same levels in 2007.
During 2006, the Huaron Mine started the development of a new conveyor-way ramp from the current bottom of the mine (250 level) to the 180 level in the north zone. This work will deepen the north zone of the mine by 70 metres and provide access to known vein extensions that have not been previously mined.
3.7 Authors’ Conclusions
Mr. Martin Wafforn, P. Eng., Vice President of Mine Engineering of PAS and Dr. Michael Steinmann, P. Geo., Senior Vice President of Exploration and Geology of PAS, reviewed pertinent data from the Huaron Mine regarding exploration data and methods, mineral resource and mineral reserve estimates, metallurgy, and process performance. They determined that Huaron Mine’s estimates of mineral resources and mineral reserves as of 31 July 2007 are in accordance with NI 43-101, and as set forth in the CIM Standards on Mineral Resources and Mineral Reserves, Definitions and Guidelines. The authors generally conclude:
The geology and mineralization of a large system of poly-metallic veins on the mine property is well understood. Geological models are appropriate to guide mineral resource estimates, which have been developed in a professional manner.
Exploration drilling, sampling, sample preparation, assaying, density measurements and drill-hole surveys have generally been carried out in accordance with industry standard practices and are suitable to support mineral resource estimates.
Exploration and drilling programs are well-planned and executed and supply sufficient information for mineral resource estimates and mineral resource classification.
Sampling and assaying includes a QA/QC program, supervised by the geology department that includes external check samples and the routine submission of standards.
The Huaron deposit mineral resource model was developed using industry accepted methods. The authors of this Technical Report have validated the mineral resource estimate and found it to be acceptable in both tonnage and grade.
The mine designs have been developed using industry standard practices and appropriate design criteria. Proven and probable mineral reserves were developed from measured and indicated resources with appropriate application of cost and design criteria.
         
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The metallurgy of individual veins and the deposit as a whole is well established from the actual results from processing Huaron Mine ores in the existing processing plant. The metallurgical assumptions used in this report are consistent with actual results obtained in that plant.
Mineral resources are classified as measured, indicated and inferred. Mineral resource classification criteria are appropriate in terms of the confidence in grade estimates and geological continuity and meet the requirements of NI 43-101 and CIM Definition Standards on Mineral Resources and Mineral Reserves (2005).
The economic analysis calculates a Net Present Value of $21.4M at a 10% discount rate and $17.5M at a 15% discount rate. The undiscounted after tax cash flow is $36.6M. The Huaron Mine unit total operating costs are calculated to be an average $52.25 from 2008 to 2018.
The life of mine plan presented in this report is based solely on proven and probable mineral reserves. The life of mine plan extends until 2019.
3.8 Authors’ Recommendations
The authors of this Technical Report recommend execution of the Life of Mine (“LOM”) Plan and Schedule at the Huaron Mine.
         
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4. Introduction
Pan American Silver Corp. asked its qualified senior personnel to review mineral resource and mineral reserve estimates for the silver deposit within the Huaron Mine in Peru, and prepare a Technical Report to support the public disclosure of mineral reserve and mineral resource estimates as of 31 December 2006, as required by NI 43-101. This Technical Report has been prepared in accordance with NI 43-101 and the format and contents of this Technical Report are intended to conform to Form 43-101 F1.
Mr. Martin Wafforn, P.Eng., PAS’ Vice President of Mine Engineering serves as the Qualified Person with respect to the mineral reserve statements described herein and sections 1, 2, 3, 4, 5, 6, 7, 8, 17, 18, 20, 21, 22, 23, 24 and 25 and for all figures, tables, and graphs within those sections, contained in this Technical Report. Mr. Wafforn last visited the Huaron mine site from September 17 to September 19, 2007.
Dr. Michael Steinmann, P.Geo., PAS’s Senior Vice President of Exploration and Geology serves as the Qualified Person with respect to the mineral resource statements described herein and sections 1,2,3,4, 5, 9, 10, 11, 12, 13, 14, 15, 16, 19, 21, 22, 23 and 24 and for figures, tables, and graphs contained in sections 9, 10, 11, 12, 13, 14, 15, and 19 contained in this Technical Report. Dr. Steinmann last visited the Huaron mine site from September 17 to September 19, 2007.
Elmer Ildefonso a consulting mining engineer to PAS (but not a Qualified Person according to NI 43 101) performed the mineral resource estimation and modeling under the direct supervision of Dr. Steinmann.
Information and data for the review and preparation of this Technical Report were obtained from the Huaron Mine operations personnel during site visits carried out between September 17 and September 19, 2007. Some aspects of this Technical Report regarding summaries of the geology, mineralization, mining, and mineral processing were derived from Pan American Silver Corp internally within the following reports; Annual Information Form, 2007 Inventory of Ore Reserves and Resources, and Description of the Concentrating Plant Huaron. Contributions from this and other reports were checked for accuracy by the authors of this Technical Report. Refer to section 23.0 for a complete list of the references used within this Technical Report.
The authors of this Technical Report have reviewed the information contained in these documents and determined in their professional judgment that such information is sound and prepared to industry standards.
Sources of information and data contained in this Technical Report or used in its preparation are shown in Table 4-1.
         
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Table 4-1: References
     
Sources Of Information   Used In Section
 
   
Mr. Martin Wafforn, P.Eng.
  1, 2, 3, 4, 5, 6, 7, 8, 17, 18, 20, 21, 22, 23, 24,25
 
   
Dr. Michael Steinmann, P.Geo.,
  1,2,3,4, 5, 9, 10, 11, 12, 13, 14, 15, 16, 19, 21, 22, 23, 24
 
   
Mr. Elmer Ildefonso (consultant)
  19
 
   
Ignacio Couturier
  25
 
   
Rodrigo, Elias & Medrano (legal)
  6.2, 6.4, 6.5
 
   
SVS Ingenieros S.A (consultant)
  25.5, 25.9
Notes:
 
PAS retained Estudios Mineros, an Engineering company based in Lima, Peru, to compile the land map, mining concessions and surface rights presented in this Technical Report.
 
PAS retained the Peruvian law firm of Rodrigo, Elias & Medrano to review the public register in Peru to ensure that the mining concessions and surface rights reported are held by PASH.
 
The authors have reviewed the information contained in these documents and included in this Technical Report and determined in their professional judgment that such information is sound and confirm and approve of such information.
 
All tonnages stated in this Technical Report are dry metric tonnes (“dmt”) unless otherwise specified. Ounces pertaining to silver metal content are expressed in troy ounces. All dollar values stated in this report are U.S. dollars.
 
The authors of this Technical Report are responsible for all information in this Technical Report that was not prepared by a Qualified Person, other than otherwise set out in Section 5, “Reliance on Experts”.
         
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5. Reliance on Other Experts
Martin Wafforn and Michael Steinmann, as authors of this Technical Report, have relied upon the references, opinions and statements from the Non-Qualified Persons contained within the references listed in Section 23 — References. It is assumed that technically qualified and competent persons prepared these reports and documents. It is the authors’ opinion that the materials referenced above are prepared and presented according to mining and engineering industry standards. These reports, documents, and statements were found to be generally well organized and well presented, and where applicable, the conclusions reached are judged reasonable.
The authors have relied upon the title opinion produced by Rodrigo, Elias & Medrano (a Peruvian law firm) in a report entitled “Opinion on the Huaron Mining Properties”, dated December 21, 2007 and expressly disclaim information derived from the opinion. Rodrigo, Elias & Medrano is a well known and established Peruvian law firm; however, the report written by Rodrigo, Elias & Medrano was not written by a QP as defined by NI 43-101. The authors have reviewed the report and have concluded that it is of high quality and will be adopted within this Techical Report. Rodrigo, Elias & Medrano have a good-standing working relationship with PAS and they have produced high quality work for PAS in the past.
         
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6. Property Description and Location
6.1 Introduction
Huaron Mine is an Ag-Cu-Pb-Zn deposit, located in the province of Pasco, one of three provinces forming the Pasco Department in the Central Highlands of Peru. The nearest town is Cerro de Pasco, a major mining center, and the capital of the Pasco Department with a population of approximately 70,000 people. Cerro de Pasco is connected to Lima, the capital of Peru, by road and rail.
Geographically the Huaron Mine is located at a latitude of 11º00’S and a longitude of 76º25’W in the eastern flank of the Western Cordillera at elevations of 4,250 metres to 4,800 metres above sea level. Access to the Huaron property is by a continuously maintained 285 kilometre paved highway between Lima and Unish and a 35 kilometre partially paved road between Unish and the Huaron property. A program by the Peru government to upgrade the road to a paved highway between Unish and the Huaron property is partially complete.
The topographical relief at the mine site is hilly and uneven with local slopes exceeding sixty degrees. Natural vegetation consists mainly of grasses forming meadows. These meadows have permitted development of varied livestock operations. The climate at the mine site is classified as a “cold climate” or “boreal” with average annual temperatures ranging from three to ten degrees Celsius. The Huaron Mine operates throughout the entire year.
The concessions owned by PASH consist of 252 concessions spanning over 63,822.2 ha. PASH has the exclusive right on all of the concessions to explore, develop and exploit as well as the right to marketing of the products. Currently annual concession fees are $3 per hectare.
The mine produces zinc, and silver-rich copper and lead concentrates. The following figures show the location of the Huaron Mine:
Figure 6-1A Location of the Huaron Mine in Peru
Figure 6-1B Huaron Mine Location Map in the Pasco Department
Figure 6-2A Huaron Mine Property Layout
Figure 6-2B Huaron Mine Infrastructure Layout
Figure 6-3 Mineralized Veins and Structures
Property boundaries are located by co-ordinates and are not marked physically in the field.
The plant site, tailings facility, mine workings and other infrastructure are shown in Figures 6-2. The locations of all know mineralized veins and structures containing the mineral reserves and mineral resources are shown in Figure 6-3.
         
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6.2 Mineral Tenure
PAS retained the Peruvian law firm of “RODRIGO, ELÍAS & MEDRANO — Abogados” to provide a legal opinion regarding the mining properties, including surface rights, (the “REM Opinion”) comprising the Huaron property. During the course of the review, it was decided that reviewing all of the 252 properties was not required and the review was limited to those 119 mining properties comprising the Huaron property from which production is or has been obtained (the “Mining Properties”) plus one benefication concession. The report on the Mining Properties was provided dated December 21, 2007 and is relied upon by the authors of this Technical Report.
The main legal features related to the requirements for maintaining the Mining Properties in good standing and a brief explanation of the main administrative requirements have been summarized from the REM Opinion and are included herein:
 
Under Peruvian law, the right to explore for and exploit minerals is granted by way of concessions. Pursuant to Peruvian law, any local or foreign individual or legal entity is required to hold a specific concession granted by the Ministry of Energy and Mines (“MEM”) to carry out any mining activity other than: sampling, prospecting and/or trading in mining products or minerals of any type and condition. The exploration for and extraction of mineral substances from the ground or underground is governed by the Mining Law.
 
Under the Mining Law, the system of concessions includes:
   
Mining Concessions, which grant their holders the right to explore and exploit the mineral resources, whether metallic or non-metallic, within the area conferred by the concession;
 
   
Processing Concessions, which grant the right to process minerals.
 
   
General Service Concessions, which grant the right to render auxiliary services to one or more mining concessions; and
 
   
Mining Transportation Concessions, which grant the holders the right to operate a continuous massive transportation system of mineral products between one or more mining units.
 
A Peruvian mining concession is a property-related right; distinct and independent from the ownership of land on which it is located. The term of a concession is indefinite, provided that related annual fees are duly paid. The rights manifested in a mining concession are protected against third parties, transferable, chargeable and, in general, may be the subject of any transaction or contract. Mining concessions may be privately owned and no state participation is required. Buildings and other permanent structures used in a mining operation are considered real property accessories to the concession on which they are situated.
 
The concession grants to the concessionaire the right to perform, on an exclusive basis, certain mining activities within a duly determined area. All the concessions governed by the Mining Law should be registered with the Registry of Mining Rights, which forms part of the National System of Public Registers. They are also registered in the National Mining Cadastre, which is managed by the National Institute of Mining, Metallurgical and Geological Studies based on UTM coordinates.
         
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The Concessions are irrevocable as long as its holder complies with the annual payment of the validity fee (US$3 per hectare) and penalties for not achieving a minimum production (US$100 per hectare per year) within six years following the year in which the respective Concession is granted. If said minimum production is not reached, as of the first semester of the seventh year, the holder of the concession shall pay a US$6 penalty per hectare per year until such production is reached (the penalties increase to US$20 as from the twelfth year). It is possible to avoid payment of the penalty if evidence is presented to the mining authorities that an amount equal to ten times the applicable penalty or more has been invested. Non-compliance with any of these obligations for two consecutive years will result in the extinction of the concession. Any payment made the year following a year of non-compliance will apply to the immediate previous year.
 
To comply with the established work and production obligations, holders of more than one mining concession of the same type and nature may group them in economic administrative units, provided the concessions are located within the same 5 km surface radius, in the case of non-ferrous metallic minerals. To form such economic administrative units requires approval from the General Mining Directorate.
 
Concessions may be transferred, assigned and mortgaged, while any movable assets used in mining activities as well as minerals extracted and/or processed from such concessions that belong to the concessionaire may be pledged. Any and all of these transactions and contracts must be formalized through a public deed and registered before the Mining Public Registry for them to be enforceable against the State and third parties.
 
It is important to note that the concept of overlapping with predecessor mineral titles is not uncommon in Peru. Such overlapping is common with regard to Peruvian mineral title as a result of a change to the Peruvian official system of granting mining concessions implemented in 1991 and which is based on UTM coordinates.
 
Administrative requirements include the Filing of a document in which information on the activities performed on the mining property during the previous year is provided to the mining authorities.
As mentioned above, property boundaries are located by UTM co-ordinates and are not marked physically in the field.
In order to confirm and assess the 119 Mining Properties, the information from the following sources was gathered and analyzed.
 
The status of the Mining Properties at the computerized system of the INGEMMENT (Instituto Nacional Geológico Minero y Metalúrgico);
 
In detail, the Public Registry records for each one of the Mining Properties.
         
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The official list of mining rights updated to December 31, 2006 (“Padrón Minero”), published by the INGEMMET.
 
Information and documentation provided by PASH.
The REM Opinion provided by the law firm of “RODRIGO, ELÍAS & MEDRANO — Abogados” that has been relied upon by the authors of this Technical Report is summarized as follows:
1.  
All of the 119 Mining Properties, plus one beneficiation concession, are in good standing considering good standing as a situation in which such Mining Properties and benefication concession remain valid, in full force and effect and there are no circumstances which are likely to give rise to the Mining Properties or benefication concessions to be declared extinguished by the Peruvian State, in the ordinary course of events.
 
   
For 8 of the Mining Properties, the payment of the validity fee for 2007 was not able to be verified (fulfillment of the obligation for 2006 was verified). Non-compliance for 2 consecutive years would result in the extinction of the property. (PASH intends to ensure compliance with the payment obligation to prevent extinction of the properties).
 
2.  
Mining concession titles have been granted with respect to all Mining Properties.
3.  
All Mining Properties titles have been registered with the Public Registry. There are twenty one properties that need to be duly registered with the Public Registry. The rights derived from the concession title exist and may be exercised by PASH but additional protection is provided by public registry. In addition there is a minor name change for one property that has not been duly recorded with the Public Registry.
4.  
Compania Minera Huaron S.A. (absorbed by Quiruvilca in 2006) or Pan American Silver Peru S.A.C. are the current 100% registered titleholders of all the Mining Properties. In the case of two of the mining concessions, there is a registered interest that a number of third parties appear to have over them.
Due to the time elapsed since such rights were granted — more than 30 years — and the lack of documentation available, it is not possible to determine whether or not such interests are valid and/or enforceable to date:
  a)  
Nuestra Senora de Milagro — 11.9793 Hectares: Compania Minera Huaron S.A, 50% and third parties 50%.
 
  b)  
Pandoara — 1.9966 Hectares: Compania Minera Huaron 50%, and third parties the remainder.
In the event that the successors of the third parties could claim and obtain recognition of their respective interests, the creation of a legal mining partnership would be required. In this scenario the Huaron Mine, being the largest single shareholder, should be appointed as general manager. In any event these concessions are on the outskirts of the Huaron Mine property and the concessions involved are no longer in operation.
         
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5.  
By public deeds dated September 14, 2000 and August 1, 2001, Compania Minera Huaron S.A. transferred to Empressa Administradora Chungar S.A.C., amongst other properties 78.5754 hectares of the Mining Property Acumulacion Huaron — 3, 249.7079 hectares of Acumulacion Huaron — 6, 1.9944 hectares of Huaron-1 and 21.75 hectares of C.M.H. No.74. The procedures necessary to split out the areas of the aforementioned Mining Properties are in process by the Peru Ministry of Energy and Mines and are still pending. As a consequence of this, PASH appears as the titleholder of the whole area of these properties in the Public Registry. The co-authors have reviewed this and confirm that none of the mineral reserves and mineral resources stated in this report are on the portions of the properties not owned by PASH.
6.  
There is a mortgage of US$13.16 million in favor of Glencore International AG in order to guarantee the completion of obligations of a loan facility entered into on October 21, 2001. The mortgage concerns the following mining properties: C.M.H. No. 75; Dardanelos; Relave Francois — 1, Teutonia 79; Teutonia Dos 79; Teutonia tres 79, Huaron 1 and Huaron 2. This loan facility agreement has since been cancelled nevertheless cancellation of the agreement needs to be registered for it to be removed from the public record.
7.  
There is a precautionary measure placed on the Olvido and Rosario mining properties relating to a law suit that was cancelled in 1963. The resolution of the law suit should have included cancellation of this measure on those properties and therefore if discrepancies arise pertaining to the ownership of the Olvido and Rosario mining properties the ownership should be easily mended without major inconveniences.
8.  
There is an easement for the construction of a drainage tunnel over the Alpamina, C.P.H. No. 6, Juana and Labor y Constancia mining properties. This agreement dates back to the water inflow to the Chungar Mine from Nanticocha Lake on April 23, 1998. The agreement was ended on September 14, 2000 by means of another agreement; however, the easement remains over parts of the 400 and 250 levels at the Huaron Mine.
9.  
There is a small degree of overlapping with third parties’ mining rights. This is a result of regulatory modification in Peru to the system of using UTM co-ordinates in 1991. It is quite common for Peruvian mining rights to be overlapping and in these cases the older mining concessions have priority. Likewise there is some potential for blank spaces, these spaces in the case of the Huaron property would be small.
Mining concessions are a real property right different and independent from surface land property. Consequently, pursuant to Peruvian legislation, title over these concessions does not grant its holder ownership or a possession title over the surface land, this should be negotiated with the corresponding landowners. The mining concessionaire has three options available to develop exploration or exploitation works:
  i)  
Purchase the corresponding surface land;
         
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  ii)  
Reach an agreement with landholders for its temporary use, and
 
  iii)  
Obtain the imposition of a legal easement by the MEM.
With respect thereof PASH furnished to Rodrigo, Elias & Modreno several public and private documents evidencing its property and other similar rights over a number of lands required for conducting mining activities at the Huaron mine. The agreements between the communities of Huayllay and San Augustin de Huaychao that were provided are as follows:
  a)  
Estancia Wuiscas (about 3 hectares) acquired from huayllay through public deed dated October 23, 1996.
 
  b)  
Easement right (about 11 hectares) acquired from San Augustin de Huaychao through public deed dated March 14, 2000 for the Shuisha Site.
 
  c)  
Easement right of 167 hectares acquired from Huayllay through public deed dated March 28, 2000.
 
  d)  
Easement right of 11 hectares acquired from Huayllay through public deed dated December 11, 2000.
 
  e)  
Easement right of 2.5 hectares acquired from Huayllay through public deed dated April 4, 2002.
 
  f)  
Easement right of 50 hectares acquired from Huaychao through public deed dated April 4, 2002.
 
  g)  
Easement right of 9.79 hectares divided in two lots acquired from Huayllay through public deed dated January 7, 2004.
 
  h)  
Easement right of 16 hectares in the Trapiche area to be revegetated and 54.26 hectares of other community lands acquired from Huayllay through private agreement dated June 11, 2007.
 
  i)  
Easement right of 2 hectares acquired from Huayllay through private agreement dated June 20, 2007.
The ongoing operation of the existing tailings facility will require future raising of the tailings dam crest. This will result in the increase of the impoundment area and impact existing infrastructure in the area such as gravel access roads. As the impoundment area increases additional surface rights will need to be purchased on both the north and south side of the existing impoundment. PASH anticipates that it will be able to continue to make further agreements with the local communities as it has done in the past on an as required basis. The existing surface rights are listed in Table 6-3.
         
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A complete list of all of the mining concessions with respect to the Huaron Mine property are shown in Table 6-1 and outlined in Figure 6-4. The list of Mining concessions that were reviewed Rodrigo, Elias & Medrano, Lima, Peru are shown in Table 6-2.
         
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Table 6-1: Mining Concessions
MINERAL CONCESIONES — HUARÓN PROXIMITY
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
1
    04003370Y01     ABUNDANCIA   COMPAÑIA MINERA HUARON S.A.   9/1/1917     0.16   D.M. Titulado D.L. 109
2
    0403370AY01     ABUNDANCIA-A   COMPAÑIA MINERA HUARON S.A.   9/1/1917     0.05   D.M. Titulado D.L. 109
3
    04013287X01     ACUMULACION HUARON-4   COMPAÑIA MINERA HUARON S.A.   6/20/1985     96.66   Acumulación D.M. Titulada
4
    04013289X01     ACUMULACION HUARON 6   COMPAÑIA MINERA HUARON S.A.   6/20/1985     242.7013   Acumulación D.M. Titulada
5
    04013284X01     ACUMULACION HUARON-1   COMPAÑIA MINERA HUARON S.A.   6/20/1985     795.67   Acumulación D.M. Titulada
6
    04013285X01     ACUMULACION HUARON-2   COMPAÑIA MINERA HUARON S.A.   6/20/1985     540.49   Acumulación D.M. Titulada
7
    04013286X01     ACUMULACION HUARON-3   COMPAÑIA MINERA HUARON S.A.   6/20/1985     534.4302   Acumulación D.M. Titulada
8
    04013290X01     ACUMULACION HUARON-7   COMPAÑIA MINERA HUARON S.A.   6/20/1985     795.07   Acumulación D.M. Titulada
9
    04002265Y01     ALIANZA Y FIRMEZA   COMPAÑIA MINERA HUARON S.A.   5/15/1901     0.06   D.M. Titulado D.L. 109
10
  0402265AY01     ALIANZA Y FIRMEZA-A   COMPAÑIA MINERA HUARON S.A.   5/15/1901     0.02   D.M. Titulado D.L. 109
11
    04004655X01     ALICIA   COMPAÑIA MINERA HUARON S.A.   8/9/1912     0.77   D.M. Titulado D.L. 109
12
    04002572X01     ALPAMINA   COMPAÑIA MINERA HUARON S.A.   10/25/1905     0.05   D.M. Titulado D.L. 109
13
  0402572AX01     ALPAMINA-A   COMPAÑIA MINERA HUARON S.A.   10/25/1905     0.85   D.M. Titulado D.L. 109
14
    04000997X01     ANIMAS   COMPAÑIA MINERA HUARON S.A.   5/10/1902     0.19   D.M. Titulado D.L. 109
15
    04003431X01     APURO   COMPAÑIA MINERA HUARON S.A.   1/27/1908     0.37   D.M. Titulado D.L. 109
16
    11023860X01     AURORA-10   COMPAÑIA MINERA HUARON S.A.   1/16/1981     878.55   D.M. Titulado D.L. 109
17
    04000466X01     BALCON DE JUDAS   COMPAÑIA MINERA HUARON S.A.   10/24/1901     17.97   D.M. Titulado D.L. 109
18
    04001000X01     BALSAMO   COMPAÑIA MINERA HUARON S.A.   5/10/1902     2.00   D.M. Titulado D.L. 109
19
    04009964X01     C.M.H. CHASQUI-HUASI   COMPAÑIA MINERA HUARON S.A.   8/31/1953     32.00   D.M. Titulado D.L. 109
20
    04009995X01     C.M.H. CHASQUIHUASI NUMERO DOS   COMPAÑIA MINERA HUARON S.A.   4/10/1954     16.00   D.M. Titulado D.L. 109
21
    07000365X01     C.M.H. LIMONITA NORTE   COMPAÑIA MINERA HUARON S.A.   4/23/1956     56.00   D.M. Titulado D.L. 109
22
    07000367X01     C.M.H. LIMONITA SUR   COMPAÑIA MINERA HUARON S.A.   4/23/1956     40.00   D.M. Titulado D.L. 109
23
    04013394X01     C.M.H. Nº 101   COMPAÑIA MINERA HUARON S.A.   5/4/1987     0.57   D.M. Titulado D.L. 109
24
    04013495X01     C.M.H. Nº 102   COMPAÑIA MINERA HUARON S.A.   5/2/1991     1.16   D.M. Titulado D.L. 109
25
    04013496X01     C.M.H. Nº 103   COMPAÑIA MINERA HUARON S.A.   5/2/1991     0.18   D.M. Titulado D.L. 109
26
    04010514X01     C.M.H. Nº 15   COMPAÑIA MINERA HUARON S.A.   7/18/1957     125.78   D.M. Titulado D.L. 109
27
    04008913X01     C.M.H. Nº 16   COMPAÑIA MINERA HUARON S.A.   6/5/1944     0.73   D.M. Titulado D.L. 109
28
    04008978X01     C.M.H. Nº 18   COMPAÑIA MINERA HUARON S.A.   9/5/1945     8.00   D.M. Titulado D.L. 109
29
    04009045X01     C.M.H. Nº 19   COMPAÑIA MINERA HUARON S.A.   8/20/1946     16.00   D.M. Titulado D.L. 109
30
    04008319X01     C.M.H. Nº 2   COMPAÑIA MINERA HUARON S.A.   5/3/1937     0.94   D.M. Titulado D.L. 109
31
    04009299X01     C.M.H. Nº 25   COMPAÑIA MINERA HUARON S.A.   4/9/1949     21.66   D.M. Titulado D.L. 109
32
    04009300X01     C.M.H. Nº 27   COMPAÑIA MINERA HUARON S.A.   4/11/1949     2.71   D.M. Titulado D.L. 109
33
    04009301X01     C.M.H. Nº 28   COMPAÑIA MINERA HUARON S.A.   4/11/1949     29.61   D.M. Titulado D.L. 109
34
    04008320X01     C.M.H. Nº 3   COMPAÑIA MINERA HUARON S.A.   5/3/1937     0.52   D.M. Titulado D.L. 109
35
    04009303X01     C.M.H. Nº 30   COMPAÑIA MINERA HUARON S.A.   4/11/1949     0.33   D.M. Titulado D.L. 109
36
    04009433X02     C.M.H. Nº 33   COMPAÑIA MINERA HUARON S.A.   11/17/1950     1.79   D.M. Titulado D.L. 109
37
    04009435X01     C.M.H. Nº 35   COMPAÑIA MINERA HUARON S.A.   11/17/1950     0.25   D.M. Titulado D.L. 109
38
  0403885AY01     C.M.H. Nº 3-A   COMPAÑIA MINERA HUARON S.A.   11/17/1950     0.74   D.M. Titulado D.L. 109
39
    04009481X01     C.M.H. Nº 44   COMPAÑIA MINERA HUARON S.A.   4/9/1951     0.80   D.M. Titulado D.L. 109
40
    04008593X01     C.M.H. Nº 5   COMPAÑIA MINERA HUARON S.A.   2/7/1941     0.24   D.M. Titulado D.L. 109
41
    04009488X01     C.M.H. Nº 51   COMPAÑIA MINERA HUARON S.A.   4/9/1951     0.13   D.M. Titulado D.L. 109
42
    04009495X01     C.M.H. Nº 52   COMPAÑIA MINERA HUARON S.A.   4/25/1951     0.88   D.M. Titulado D.L. 109
43
    04009581X01     C.M.H. Nº 57   COMPAÑIA MINERA HUARON S.A.   11/19/1951     0.10   D.M. Titulado D.L. 109
44
    04009589X01     C.M.H. Nº 65   COMPAÑIA MINERA HUARON S.A.   11/19/1951     0.08   D.M. Titulado D.L. 109
45
    04009591X01     C.M.H. Nº 67   COMPAÑIA MINERA HUARON S.A.   11/19/1951     0.03   D.M. Titulado D.L. 109
46
    04008823X01     C.M.H. Nº 7   COMPAÑIA MINERA HUARON S.A.   4/16/1943     0.14   D.M. Titulado D.L. 109
         
43-101(PanAm)   Huaron Mine   26
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
47
    04009595X01     C.M.H. Nº 71   COMPAÑIA MINERA HUARON S.A.   11/19/1951     7.68   D.M. Titulado D.L. 109
48
    04009596X01     C.M.H. Nº 72   COMPAÑIA MINERA HUARON S.A.   11/19/1951     9.39   D.M. Titulado D.L. 109
49
    04009843X01     C.M.H. Nº 74   COMPAÑIA MINERA HUARON S.A.   8/16/1952     4.4179   D.M. Titulado D.L. 109
50
    04009844X01     C.M.H. Nº 75   COMPAÑIA MINERA HUARON S.A.   8/16/1952     0.23   D.M. Titulado D.L. 109
51
    04009846X01     C.M.H. Nº 76   COMPAÑIA MINERA HUARON S.A.   8/16/1952     0.10   D.M. Titulado D.L. 109
52
    04010746X01     C.M.H. Nº 79   COMPAÑIA MINERA HUARON S.A.   11/13/1959     0.56   D.M. Titulado D.L. 109
53
    04009911X01     C.M.H. TIPISH   COMPAÑIA MINERA HUARON S.A.   1/31/1953     60.00   D.M. Titulado D.L. 109
54
    04007533X01     C.P.H. Nº 1   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.06   D.M. Titulado D.L. 109
55
    04007547X01     C.P.H. Nº 15   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.00   D.M. Titulado D.L. 109
56
  0407533AX01     C.P.H. Nº 1-A   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.17   D.M. Titulado D.L. 109
57
    04007534X01     C.P.H. Nº 2   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.02   D.M. Titulado D.L. 109
58
    04007555X01     C.P.H. Nº 23   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.55   D.M. Titulado D.L. 109
59
    04007556X01     C.P.H. Nº 24   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.86   D.M. Titulado D.L. 109
60
  0407534AX01     C.P.H. Nº 2-A   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.38   D.M. Titulado D.L. 109
61
    04007536X01     C.P.H. Nº 4   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.05   D.M. Titulado D.L. 109
62
    04007594X01     C.P.H. Nº 55   COMPAÑIA MINERA HUARON S.A.   3/29/1926     0.06   D.M. Titulado D.L. 109
63
  0403659AY01     C.P.H. Nº 55-A   COMPAÑIA MINERA HUARON S.A.   3/29/1926     0.34   D.M. Titulado D.L. 109
64
    04007538X01     C.P.H. Nº 6   COMPAÑIA MINERA HUARON S.A.   5/12/1926     0.45   D.M. Titulado D.L. 109
65
    04000874X01     CAGLIOSTRO   COMPAÑIA MINERA HUARON S.A.   4/4/1902     1.28   D.M. Titulado D.L. 109
66
    04003371Y01     CATORCE DE ABRIL   COMPAÑIA MINERA HUARON S.A.   9/28/1917     0.09   D.M. Titulado D.L. 109
67
    07000366X01     CMH CUESTAS   COMPAÑIA MINERA HUARON S.A.   4/23/1956     18.00   D.M. Titulado D.L. 109
68
    04000832X01     COMETA   COMPAÑIA MINERA HUARON S.A.   3/4/1902     15.97   D.M. Titulado D.L. 109
69
  P0100085     CONCENTRADORA FRANCOIS   COMPAÑIA MINERA HUARON S.A.   3/4/1902     48.00   Planta de Beneficio
70
    04002573X01     CONCHUCOS   COMPAÑIA MINERA HUARON S.A.   10/25/1905     0.68   D.M. Titulado D.L. 109
71
    04002451Y01     CONSTANCIA   COMPAÑIA MINERA HUARON S.A.   2/13/1902     1.08   D.M. Titulado D.L. 109
72
  0402451AY01     CONSTANCIA-A   COMPAÑIA MINERA HUARON S.A.   2/13/1902     0.07   D.M. Titulado D.L. 109
73
    04008037X01     CORDOBA   COMPAÑIA MINERA HUARON S.A.   5/7/1935     0.96   D.M. Titulado D.L. 109
74
    04012511X01     DARDANELOS   COMPAÑIA MINERA HUARON S.A.   12/7/1978     0.20   D.M. Titulado D.L. 109
75
    04003615X01     DIECINUEVE DE SETIEMBRE   COMPAÑIA MINERA HUARON S.A.   11/18/1908     0.57   D.M. Titulado D.L. 109
76
    04013463X01     DON JUAN Nº 2-88   COMPAÑIA MINERA HUARON S.A.   4/5/1989     687.54   D.M. Titulado D.L. 109
77
    04013464X01     DON JUAN Nº 4-88   COMPAÑIA MINERA HUARON S.A.   4/5/1989     240.00   D.M. Titulado D.L. 109
78
    04004653X01     DON PABLO   COMPAÑIA MINERA HUARON S.A.   8/9/1912     0.05   D.M. Titulado D.L. 109
79
    04003023X01     EL RAYO   COMPAÑIA MINERA HUARON S.A.   11/26/1906     0.21   D.M. Titulado D.L. 109
80
    04003024X01     EL TRUENO   COMPAÑIA MINERA HUARON S.A.   11/26/1906     0.07   D.M. Titulado D.L. 109
81
    04008033X01     ESPAÑA   COMPAÑIA MINERA HUARON S.A.   5/7/1935     0.11   D.M. Titulado D.L. 109
82
    04006692X01     FARALLON   COMPAÑIA MINERA HUARON S.A.   9/1/1920     7.99   D.M. Titulado D.L. 109
83
    04008586X01     FLORENCIA   COMPAÑIA MINERA HUARON S.A.   5/2/1912     0.12   D.M. Titulado D.L. 109
84
  0403093AY01     FLORENCIA-A   COMPAÑIA MINERA HUARON S.A.   5/2/1912     0.24   D.M. Titulado D.L. 109
85
    04004527X01     GAVIOTA   COMPAÑIA MINERA HUARON S.A.   4/10/1912     0.92   D.M. Titulado D.L. 109
86
  0404527AX01     GAVIOTA-A   COMPAÑIA MINERA HUARON S.A.   4/10/1912     1.86   D.M. Titulado D.L. 109
87
    04008276X01     GRANADA   COMPAÑIA MINERA HUARON S.A.   12/17/1936     5.58   D.M. Titulado D.L. 109
88
    04004591X01     GUILLERMO BILLINGHURST   COMPAÑIA MINERA HUARON S.A.   5/20/1912     0.28   D.M. Titulado D.L. 109
89
    010236398     HORIZONTE 10   COMPAÑIA MINERA HUARON S.A.   11/25/1998     500.00   D.M. Titulado D.L. 708
90
    010236498     HORIZONTE 11   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
91
    010236698     HORIZONTE 13   COMPAÑIA MINERA HUARON S.A.   11/25/1998     700.00   D.M. Titulado D.L. 708
92
    010236798     HORIZONTE 14   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
93
    010236898     HORIZONTE 15   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
94
    010236998     HORIZONTE 16   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
95
    010237198     HORIZONTE 18   COMPAÑIA MINERA HUARON S.A.   11/25/1998     800.00   D.M. Titulado D.L. 708
96
    010237298     HORIZONTE 19   COMPAÑIA MINERA HUARON S.A.   11/25/1998     700.00   D.M. Titulado D.L. 708
         
43-101(PanAm)   Huaron Mine   27
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
97
    010237398     HORIZONTE 20   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
98
    010237498     HORIZONTE 21   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
99
    010237598     HORIZONTE 22   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
100
    010237698     HORIZONTE 23   COMPAÑIA MINERA HUARON S.A.   11/25/1998     600.00   D.M. Titulado D.L. 708
101
    010238898     HORIZONTE 31   COMPAÑIA MINERA HUARON S.A.   11/27/1998     900.00   D.M. Titulado D.L. 708
102
    010238998     HORIZONTE 32   COMPAÑIA MINERA HUARON S.A.   11/27/1998     700.00   D.M. Titulado D.L. 708
103
    010239098     HORIZONTE 33   COMPAÑIA MINERA HUARON S.A.   11/27/1998     900.00   D.M. Titulado D.L. 708
104
    010239198     HORIZONTE 34   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
105
    010239598     HORIZONTE 38   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
106
    010239698     HORIZONTE 39   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
107
    010235798     HORIZONTE 4   COMPAÑIA MINERA HUARON S.A.   11/25/1998     1000.00   D.M. Titulado D.L. 708
108
    010239798     HORIZONTE 40   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
109
    010239898     HORIZONTE 41   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
110
    010239998     HORIZONTE 42   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
111
    010240098     HORIZONTE 43   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
112
    010240298     HORIZONTE 45   COMPAÑIA MINERA HUARON S.A.   11/27/1998     600.00   D.M. Titulado D.L. 708
113
    010240398     HORIZONTE 46   COMPAÑIA MINERA HUARON S.A.   11/27/1998     600.00   D.M. Titulado D.L. 708
114
    010240498     HORIZONTE 47   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
115
    010240598     HORIZONTE 48   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
116
    010240698     HORIZONTE 49   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
117
    010240798     HORIZONTE 50   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
118
    010241698     HORIZONTE 59   COMPAÑIA MINERA HUARON S.A.   11/27/1998     800.00   D.M. Titulado D.L. 708
119
    010241798     HORIZONTE 60   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
120
    010241898     HORIZONTE 61   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
121
    010241998     HORIZONTE 62   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
122
    010242098     HORIZONTE 63   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
123
    010242198     HORIZONTE 64   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
124
    010242298     HORIZONTE 65   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
125
    010242398     HORIZONTE 66   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
126
    010242498     HORIZONTE 67   COMPAÑIA MINERA HUARON S.A.   11/27/1998     1000.00   D.M. Titulado D.L. 708
127
    010242598     HORIZONTE 68   COMPAÑIA MINERA HUARON S.A.   11/27/1998     400.00   D.M. Titulado D.L. 708
128
    04002568X01     HUALGAYOC   COMPAÑIA MINERA HUARON S.A.   10/23/1905     0.05   D.M. Titulado D.L. 109
129
    04002567X01     HUANCAVELICA   COMPAÑIA MINERA HUARON S.A.   10/23/1905     0.03   D.M. Titulado D.L. 109
130
    04006355X01     HUAROCHIRI   COMPAÑIA MINERA HUARON S.A.   6/3/1919     0.59   D.M. Titulado D.L. 109
131
    010250094     HUARON 1   COMPAÑIA MINERA HUARON S.A.   4/28/1994     500.00   D.M. Titulado D.L. 708
132
    010250194     HUARON 2   COMPAÑIA MINERA HUARON S.A.   4/28/1994     209.6609   D.M. Titulado D.L. 708
133
    010250194A     HUARON 2A   COMPAÑIA MINERA HUARON S.A.   4/28/1994     200.00   D.M. Titulado D.L. 708
134
    010250294     HUARON 3   COMPAÑIA MINERA HUARON S.A.   4/28/1994     1000.00   D.M. Titulado D.L. 708
135
    010250394     HUARON 4   COMPAÑIA MINERA HUARON S.A.   4/28/1994     1000.00   D.M. Titulado D.L. 708
136
    010250494     HUARON 5   COMPAÑIA MINERA HUARON S.A.   4/28/1994     700.00   D.M. Titulado D.L. 708
137
    04008295X01     JUANA   COMPAÑIA MINERA HUARON S.A.   2/22/1937     0.04   D.M. Titulado D.L. 109
138
    04002211Y01     LA ALIANZA   COMPAÑIA MINERA HUARON S.A.   7/15/1901     11.98   D.M. Titulado D.L. 109
139
    04001001X01     LA CENTRAL   COMPAÑIA MINERA HUARON S.A.   5/10/1902     2.00   D.M. Titulado D.L. 109
140
    04006749X01     LA HUACA   COMPAÑIA MINERA HUARON S.A.   10/18/1920     0.71   D.M. Titulado D.L. 109
141
  0403589AY01     LA HUACA-A   COMPAÑIA MINERA HUARON S.A.   10/18/1920     0.09   D.M. Titulado D.L. 109
142
  0403589BY01     LA HUACA-B   COMPAÑIA MINERA HUARON S.A.   10/18/1920     0.05   D.M. Titulado D.L. 109
143
    04004599X01     LA PEDRERA   COMPAÑIA MINERA HUARON S.A.   5/28/1912     0.51   D.M. Titulado D.L. 109
144
    04000099X01     LA PROVIDENCIA   COMPAÑIA MINERA HUARON S.A.   5/24/1901     0.01   D.M. Titulado D.L. 109
145
    04000998X01     LA TAPADA   COMPAÑIA MINERA HUARON S.A.   5/10/1902     3.99   D.M. Titulado D.L. 109
146
    04770771X01     LABOR Y CONSTANCIA   COMPAÑIA MINERA HUARON S.A.   2/13/1902     23.96   D.M. Titulado D.L. 109
147
    11024448X01     MANCAHUCRO   COMPAÑIA MINERA HUARON S.A.   9/15/1982     303.96   D.M. Titulado D.L. 109
         
43-101(PanAm)   Huaron Mine   28
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
148
    04001486X01     MANLINCHER   COMPAÑIA MINERA HUARON S.A.   2/10/1903     6.00   D.M. Titulado D.L. 109
149
    04006337X01     MARIA   COMPAÑIA MINERA HUARON S.A.   5/26/1919     0.08   D.M. Titulado D.L. 109
150
    04000632X01     MARTE   COMPAÑIA MINERA HUARON S.A.   12/2/1901     0.08   D.M. Titulado D.L. 109
151
    04008014X01     MAX   COMPAÑIA MINERA HUARON S.A.   5/6/1935     0.06   D.M. Titulado D.L. 109
152
    04008013X01     MICHEL   COMPAÑIA MINERA HUARON S.A.   5/4/1935     0.54   D.M. Titulado D.L. 109
153
    04002570X01     MOROCOCHA   COMPAÑIA MINERA HUARON S.A.   10/25/1905     0.07   D.M. Titulado D.L. 109
154
    04007963X01     NUESTRA SEÑORA DEL MILAGRO   COMPAÑIA MINERA HUARON S.A.   11/25/1934     11.98   D.M. Titulado D.L. 109
155
    04002435Y01     NUESTRA SEÑORA DEL ROSARIO   COMPAÑIA MINERA HUARON S.A.   5/24/1901     0.16   D.M. Titulado D.L. 109
156
    04002617X01     OLVIDO   COMPAÑIA MINERA HUARON S.A.   11/30/1905     2.40   D.M. Titulado D.L. 109
157
    04000999X01     ORACULO   COMPAÑIA MINERA HUARON S.A.   5/10/1902     3.99   D.M. Titulado D.L. 109
158
    04006436X01     PACHITEA   COMPAÑIA MINERA HUARON S.A.   9/10/1919     0.77   D.M. Titulado D.L. 109
159
    04007960X01     PANDORA   COMPAÑIA MINERA HUARON S.A.   11/21/1905     2.00   D.M. Titulado D.L. 109
160
    04000811X01     PLANETA   COMPAÑIA MINERA HUARON S.A.   3/4/1902     2.00   D.M. Titulado D.L. 109
161
    04012743X01     RELAVE FRANCOIS-1   COMPAÑIA MINERA HUARON S.A.   2/6/1980     60.00   D.M. Titulado D.L. 109
162
    04001253Y01     ROSARIO   COMPAÑIA MINERA HUARON S.A.   7/11/18888     2.11   D.M. Titulado D.L. 109
163
    04007524X01     ROSARIO NUMERO CINCO   COMPAÑIA MINERA HUARON S.A.   5/1/1926     0.01   D.M. Titulado D.L. 109
164
    04008019X01     ROSARIO NUMERO CUATRO   COMPAÑIA MINERA HUARON S.A.   5/6/1935     0.02   D.M. Titulado D.L. 109
165
    04001130X01     SACERDOTIZA   COMPAÑIA MINERA HUARON S.A.   8/11/1902     0.14   D.M. Titulado D.L. 109
166
    11024447X01     SAN CAMILO   COMPAÑIA MINERA HUARON S.A.   9/15/1982     211.72   D.M. Titulado D.L. 109
167
    04012993X01     SAN CARLOS 79   COMPAÑIA MINERA HUARON S.A.   3/27/1981     182.00   D.M. Titulado D.L. 109
168
    07000131X01     SAN JORGE II   COMPAÑIA MINERA HUARON S.A.   8/18/1952     40.00   D.M. Titulado D.L. 109
169
    07000132X01     SAN JORGE III   COMPAÑIA MINERA HUARON S.A.   8/18/1952     32.00   D.M. Titulado D.L. 109
170
    07000130X01     SAN JORGE IV   COMPAÑIA MINERA HUARON S.A.   8/18/1952     50.00   D.M. Titulado D.L. 109
171
    07000146X01     SAN JORGE IX   COMPAÑIA MINERA HUARON S.A.   10/6/1952     48.00   D.M. Titulado D.L. 109
172
    07000017X01     SAN JORGE Nº 1   COMPAÑIA MINERA HUARON S.A.   7/25/1951     120.00   D.M. Titulado D.L. 109
173
    07000133X01     SAN JORGE V   COMPAÑIA MINERA HUARON S.A.   8/18/1952     32.00   D.M. Titulado D.L. 109
174
    07000134X01     SAN JORGE VI   COMPAÑIA MINERA HUARON S.A.   8/18/1952     72.00   D.M. Titulado D.L. 109
175
    07000135X01     SAN JORGE VII   COMPAÑIA MINERA HUARON S.A.   8/18/1952     36.00   D.M. Titulado D.L. 109
176
    07000145X01     SAN JORGE VIII   COMPAÑIA MINERA HUARON S.A.   10/6/1952     30.00   D.M. Titulado D.L. 109
177
    04004654X01     SANTIAGO   COMPAÑIA MINERA HUARON S.A.   8/9/1912     0.03   D.M. Titulado D.L. 109
178
    04008039X01     SEVILLA   COMPAÑIA MINERA HUARON S.A.   5/7/1935     0.06   D.M. Titulado D.L. 109
179
    04012512X01     TEUTONIA 79   COMPAÑIA MINERA HUARON S.A.   12/7/1978     0.04   D.M. Titulado D.L. 109
180
    04012513X01     TEUTONIA DOS-79   COMPAÑIA MINERA HUARON S.A.   12/7/1978     3.51   D.M. Titulado D.L. 109
181
    04012514X01     TEUTONIA TRES-79   COMPAÑIA MINERA HUARON S.A.   12/7/1978     0.00   D.M. Titulado D.L. 109
182
    04004857X01     VEINTE DE FEBRERO   COMPAÑIA MINERA HUARON S.A.   4/12/1913     0.14   D.M. Titulado D.L. 109
183
    04002221Y01     VENUS   COMPAÑIA MINERA HUARON S.A.   9/19/1901     1.22   D.M. Titulado D.L. 109
184
    07001624X01     SAN JORGE X   COMPAÑIA MINERA SAN JORGE S.A.   3/9/1979     324.00   D.M. Titulado D.L. 109
185
    010409797     VITACANCHA-R   COMPAÑIA MINERA SIPAN S.A.   12/4/1997     1000.00   D.M. Titulado D.L. 708
186
    04010978X01     C.M.H. Nº 84-DOS   S.M.R.L. CMH Nº 84-DOS DE CERRO DE PASCO   7/1/1961     1.00   D.M. Titulado D.L. 109
         
43-101(PanAm)   Huaron Mine   29
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
MINERAL CONCESSIONS – SHALIPAYCO ZONE
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
187
    04008809X01     EL TRIUNFO   COMPAÑIA MINERA EL TRIUNFO S.A.   11/12/1936     8.00   D.M. Titulado D.L. 109
188
  0410353AX01     LA ESPERANZA DE CARHUAMAYO   COMPAÑIA MINERA EL TRIUNFO S.A.   8/1/1950     15.00   D.M. Titulado D.L. 109
189
    04009440X01     SAN ANDRES NUMERO UNO   COMPAÑIA MINERA EL TRIUNFO S.A.   11/30/1950     8.00   D.M. Titulado D.L. 109
190
    04010668X01     SANTA LUISA Nº 1   COMPAÑIA MINERA EL TRIUNFO S.A.   5/5/1959     10.00   D.M. Titulado D.L. 109
191
    010182603     JUAN GILBERTO V   PAN AMERICAN SILVER PERU S.A.C.   6/2/2003     953.86   D.M. Titulado D.L. 708
192
    010182703     JUAN GILBERTO VI   PAN AMERICAN SILVER PERU S.A.C.   6/2/2003     1000.00   D.M. Titulado D.L. 708
193
    010182803     JUAN GILBERTO VII   PAN AMERICAN SILVER PERU S.A.C.   6/2/2003     1000.00   D.M. Titulado D.L. 708
194
    010182903     JUAN GILBERTO VIII   PAN AMERICAN SILVER PERU S.A.C.   6/2/2003     1000.00   D.M. Titulado D.L. 708
195
    010183103     EVA II   PAN AMERICAN SILVER PERU S.A.C.   6/2/2003     3.79   D.M. Titulado D.L. 708
196
    010182503     TRIUNFO VI A   PAN AMERICAN SILVER PERU S.A.C.   6/2/2003     5.89   D.M. Titulado D.L. 708
197
  0410129AX01     LA VERDAD   S.M.R.L. LA VERDAD DE CERRO DE PASCO   4/1/1955     15.00   D.M. Titulado D.L. 109
198
    04012555X01     DELIA 79   COMPAÑIA MINERA HUARON S.A.   3/27/1979     4.00   D.M. Titulado D.L. 109
199
    04012544X01     ESCALON Nº 2   COMPAÑIA MINERA HUARON S.A.   2/14/1979     17.17   D.M. Titulado D.L. 109
200
    04012165X01     JUAN GILBERTO 1   COMPAÑIA MINERA HUARON S.A.   6/11/1974     1000.00   D.M. Titulado D.L. 109
201
    04012166X01     JUAN GILBERTO 2   COMPAÑIA MINERA HUARON S.A.   6/11/1974     1000.00   D.M. Titulado D.L. 109
202
    04012167X01     JUAN GILBERTO 3   COMPAÑIA MINERA HUARON S.A.   6/11/1974     960.67   D.M. Titulado D.L. 109
203
    04012168X01     JUAN GILBERTO 4   COMPAÑIA MINERA HUARON S.A.   6/11/1974     575.33   D.M. Titulado D.L. 109
204
  0412168AX01     JUAN GILBERTO 4-A   COMPAÑIA MINERA HUARON S.A.   6/11/1974     192.01   D.M. Titulado D.L. 109
205
    04012552X01     LA VERDAD   COMPAÑIA MINERA HUARON S.A.   3/8/1979     15.00   D.M. Titulado D.L. 109
206
    04012541X01     MONICA 79   COMPAÑIA MINERA HUARON S.A.   2/14/1979     4.00   D.M. Titulado D.L. 109
207
    04012551X01     RESURGIDORA Nº 2   COMPAÑIA MINERA HUARON S.A.   3/8/1979     56.00   D.M. Titulado D.L. 109
208
    04012550X01     SAN LUIS Nº 2   COMPAÑIA MINERA HUARON S.A.   3/7/1979     100.00   D.M. Titulado D.L. 109
209
    04013395X01     SAN SEBASTIAN-87   COMPAÑIA MINERA HUARON S.A.   5/4/1987     60.58   D.M. Titulado D.L. 109
210
    04012391X01     SAN TEODORO Nº 1   COMPAÑIA MINERA HUARON S.A.   11/9/1977     46.94   D.M. Titulado D.L. 109
211
    04012556X01     TRIUNFO   COMPAÑIA MINERA HUARON S.A.   3/27/1979     8.00   D.M. Titulado D.L. 109
MINERAL CONCESSIONS — PAS PERU ZONES
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
212
    010211905     C.M.H.05   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     2.74     D.M. Titulado D.L. 708
213
    010211805     EL TRUENO 1-2   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.03     D.M. Titulado D.L. 708
214
    010211705     ELTRUENO 1-1   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.03     D.M. Titulado D.L. 708
215
    010212705     FEBRERO 20   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.19     D.M. Titulado D.L. 708
216
    010212605     LA VENUS   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.09     D.M. Titulado D.L. 708
217
    010212005     MARTE 1-1   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.04     D.M. Titulado D.L. 708
218
    010212105     MARTE 1-2   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.04     D.M. Titulado D.L. 708
219
    010212205     MARTE 3   PAN AMERICAN SILVER PERU S.A.C.   07/07/05     0.01     D.M. Titulado D.L. 708
220
    010017899     PASP-99-1-MALLAY   PAN AMERICAN SILVER PERU S.A.C.   02/23/99     200.00     D.M. Titulado D.L. 708
221
    010409307     SHALIPAYCO 1   PAN AMERICAN SILVER PERU S.A.C.   08/01/07     10.00     D.M. en Trámite D.L. 708
222
    010409207     SHALIPAYCO 2   PAN AMERICAN SILVER PERU S.A.C.   08/01/07     18.00     D.M. en Trámite D.L. 708
223
    010346306     UNION 2   PAN AMERICAN SILVER S.A. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
224
    010348106     UNION 21   PAN AMERICAN SILVER S.A. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
225
    010347206     UNION 12   PAN AMERICAN SILVER S.A.C. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
226
    010347306     UNION 13   PAN AMERICAN SILVER S.A.C. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
227
    010347706     UNION 17   PAN AMERICAN SILVER S.A.C. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
228
    010347806     UNION 18   PAN AMERICAN SILVER S.A.C. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
229
    010347906     UNION 19   PAN AMERICAN SILVER S.A.C. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
230
    010346806     UNION 7   PAN AMERICAN SILVER S.A.C. MINA QUIRUVILCA   08/09/06     100.00     D.M. Titulado D.L. 708
231
    010610407     LIMONITA 1   PAN AMERICAN SILVER PERU S.A.C.   11/22/07     200.00     D.M. en Trámite D.L. 708
232
    010610307     LIMONITA 2   PAN AMERICAN SILVER PERU S.A.C.   11/22/07     100.00     D.M. en Trámite D.L. 708
233
    010618807     LIMONITA 3   PAN AMERICAN SILVER PERU S.A.C.   11/26/07     100.00     D.M. en Trámite D.L. 708
         
43-101(PanAm)   Huaron Mine   30
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
MINERAL CONCESSIONS – CAUJUL ZONE
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
234
    010258407     CAUJUL 1   Awaiting Title Name Transfer   05/02/07     4.00   D.M. Titulado D.L. 708
235
    010288807     CAUJUL 10   Awaiting Title Name Transfer   05/14/07     100.00   D.M. Titulado D.L. 708
236
    010288907     CAUJUL 11   Awaiting Title Name Transfer   05/14/07     100.00   D.M. Titulado D.L. 708
237
    010289007     CAUJUL 12   Awaiting Title Name Transfer   05/14/07     100.00   D.M. Titulado D.L. 708
238
    010289107     CAUJUL 13   Awaiting Title Name Transfer   05/14/07     983.30   D.M. Titulado D.L. 708
239
    010289207     CAUJUL 14   Awaiting Title Name Transfer   05/14/07     998.85   D.M. Titulado D.L. 708
240
    010289307     CAUJUL 15   Awaiting Title Name Transfer   05/14/07     199.77   D.M. Titulado D.L. 708
241
    010258207     CAUJUL 3   Awaiting Title Name Transfer   05/02/07     5.99   D.M. en trámite D.L. 708
242
    010258107     CAUJUL 4   Awaiting Title Name Transfer   05/02/07     95.89   D.M. Titulado D.L. 708
243
    010258007     CAUJUL 5   Awaiting Title Name Transfer   05/02/07     2.08   D.M. en trámite D.L. 708
244
    010258607     CAUJUL 7   Awaiting Title Name Transfer   05/02/07     379.39   D.M. Titulado D.L. 708
245
    010288607     CAUJUL 8   Awaiting Title Name Transfer   05/14/07     100.00   D.M. Titulado D.L. 708
246
    010288707     CAUJUL 9   Awaiting Title Name Transfer   05/14/07     100.00   D.M. Titulado D.L. 708
MINERAL CONCESSIONS — PLATA DE CERRO ZONE
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
247
    010103807     PLATA DE CERRO 1   Awaiting Title Name Transfer   1/25/07     800.00   D.M. en trámite D.L. 708
248
    010104007     PLATA DE CERRO 3   Awaiting Title Name Transfer   1/25/07     200.00   D.M. Titulado D.L. 708
249
    010104107     PLATA DE CERRO 4   Awaiting Title Name Transfer   1/25/07     200.00   D.M. Titulado D.L. 708
MINERAL CONCESSIONS — PLATA DE OYON ZONE
                                 
  Registry No.   Concession   Title   Acquiry Date   Ha.   State
250
    010103507     PLATA DE OYON 1   Awaiting Title Name Transfer   1/25/07     898.78   D.M. Titulado D.L. 708
251
    010103607     PLATA DE OYON 2   Awaiting Title Name Transfer   1/25/07     898.78   D.M. Titulado D.L. 708
252
    010103707     PLATA DE OYON 3   Awaiting Title Name Transfer   1/25/07     810.18   D.M. Titulado D.L. 708
Notes:
 
[1] Various concessions owned by PASH are awaiting new title names. These concessions are identified with the “Awaiting Title Name Transfer” within the “Title” column
 
The area in hectares (Ha.) for the properties Acumulacion Huaron – 3, Acumulacion Huaron – 6, C.M.H No. 74 and Huaron 2 are shown after subtracting the the amounts of those Mining Properties transferred to Empresa Administradora Chungar S.A.C.
         
43-101(PanAm)   Huaron Mine   31
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
Table 6-2: Concessions that were reviewed by Rodrigo, Elias & Medrano
                         
                    Debts regarding validity    
No.   Registry #     Concession   Hectares1   fees   Penalties
1
    04003370Y01     ABUNDANCIA   0.1603   All paid up to 2007   No pending debt
2
    04013284X01     ACUMULACION HUARON - 1   795.6725   All paid up to 2007   No pending debt
3
    04013285X01     ACUMULACION HUARON - 2   540.4909   All paid up to 2007   No pending debt
4
    04013286X01     ACUMULACION HUARON - 32   534.4302   All paid up to 2007   No pending debt
5
    04013287X01     ACUMULACION HUARON – 4   96.6606   All paid up to 2007   No pending debt
6
    04013289X01     ACUMULACION HUARON - 62   242.7013   All paid up to 2007   No pending debt
7
    04002265Y01     ALIANZA Y FIRMEZA   0.0639   All paid up to 2007   No pending debt
8
    0402265AY01     ALIANZA Y FIRMEZA - A   0.0169   All paid up to 2007   No pending debt
9
    04004655X01     ALICIA   0.7654   All paid up to 2007   No pending debt
10
    04002572X01     ALPAMINA   0.0506   All paid up to 2007   No pending debt
11
    0402572AX01     ALPAMINA - A   0.8525   All paid up to 2007   No pending debt
12
    04000997X01     ANIMAS   0.1872   All paid up to 2007   No pending debt
13
    04003431X01     APURO   0.3709   All paid up to 2007   No pending debt
14
    04000466X01     BALCON DE JUDAS   17.9689   All paid up to 2007   No pending debt
15
    04001000X01     BALSAMO   1.9965   All paid up to 2007   No pending debt
16
    04010514X01     C.M.H. Nº 15   125.7841   All paid up to 2007   No pending debt
17
    04008913X01     C.M.H. Nº 16   0.7284   All paid up to 2007   No pending debt
18
    04008319X01     C.M.H. Nº 2   0.9388   All paid up to 2007   No pending debt
19
    04009299X01     C.M.H. Nº 25   21.6565   All paid up to 2007   No pending debt
20
    04009300X01     C.M.H. Nº 27   2.7139   All paid up to 2007   No pending debt
21
    04009301X01     C.M.H. Nº 28   29.6141   All paid up to 2007   No pending debt
22
    04008320X01     C.M.H. Nº 3   0.5161   All paid up to 2007   No pending debt
23
    0403885AY01     C.M.H. Nº 3 - A   0.7375   All paid up to 2007   No pending debt
24
    04009303X01     C.M.H. Nº 30   0.3297   All paid up to 2007   No pending debt
25
    04009433X02     C.M.H. Nº 33   1.7925   All paid up to 2007   No pending debt
26
    04009435X01     C.M.H. Nº 35   0.2543   All paid up to 2007   No pending debt
27
    04009481X01     C.M.H. Nº 44   0.8016   All paid up to 2007   No pending debt
28
    04008593X01     C.M.H. Nº 5   0.2413   All paid up to 2007   No pending debt
29
    04009488X01     C.M.H. Nº 51   0.1332   All paid up to 2007   No pending debt
30
    04009495X01     C.M.H. Nº 52   0.8838   All paid up to 2007   No pending debt
31
    04009581X01     C.M.H. Nº 57   0.0967   All paid up to 2007   No pending debt
32
    04009589X01     C.M.H. Nº 65   0.0837   All paid up to 2007   No pending debt
33
    04009591X01     C.M.H. Nº 67   0.0288   All paid up to 2007   No pending debt
34
    04008823X01     C.M.H. Nº 7   0.1435   All paid up to 2007   No pending debt
35
    04009595X01     C.M.H. Nº 71   7.6848   All paid up to 2007   No pending debt
36
    04009596X01     C.M.H. Nº 72   9.3854   All paid up to 2007   No pending debt
37
    04009843X01     C.M.H. Nº 742   4.4179   All paid up to 2007   No pending debt
38
    04009844X01     C.M.H. Nº 75   0.2346   All paid up to 2007   No pending debt
39
    04009846X01     C.M.H. Nº 76   0.102   All paid up to 2007   No pending debt
40
    04010746X01     C.M.H. Nº 79   0.557   All paid up to 2007   No pending debt
41
    010211905     C.M.N.H. 05   2.7415   Was Paid for 2006   No pending debt
42
    04007533X01     C.P.H. Nº 1   0.0601   All paid up to 2007   No pending debt
43
    0407533AX01     C.P.H. No 1 - A   0.1651   All paid up to 2007   No pending debt
44
    04007547X01     C.P.H. Nº 15   0.01   All paid up to 2007   No pending debt
45
    04007534X01     C.P.H. Nº 2   0.0226   All paid up to 2007   No pending debt
46
    04007555X01     C.P.H. Nº 23   0.5511   All paid up to 2007   No pending debt
47
    04007556X01     C.P.H. Nº 24   0.857   All paid up to 2007   No pending debt
48
    04007536X01     C.P.H. Nº 4   0.0459   All paid up to 2007   No pending debt
49
    04007594X01     C.P.H. Nº 55   0.0642   All paid up to 2007   No pending debt
50
    0403659AY01     C.P.H. Nº 55 - A   0.3420   All paid up to 2007   No pending debt
51
    04007538X01     C.P.H. Nº 6   0.4477   All paid up to 2007   No pending debt
52
    04000874X01     CAGLIOSTRO   1.2773   All paid up to 2007   No pending debt
53
    04003371Y01     CATORCE DE ABRIL   0.0853   All paid up to 2007   No pending debt
54
    04000832X01     COMETA   15.9727   All paid up to 2007   No pending debt
         
43-101(PanAm)   Huaron Mine   32
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
                    Debts regarding validity    
No.   Registry #     Concession   Hectares1   fees   Penalties
55
  P0100085     CONCENTRADORA FRANCOIS
(BENEFICIATION CONCESSION)
  2,000.00 TM/Mts.   All paid up to 2007   No pending debt
56
    04002573X01     CONCHUCOS   0.6759   All paid up to 2007   No pending debt
57
    0402451AY01     CONSTANCIA - A   0.0739   All paid up to 2007   No pending debt
58
    04008037X01     CORDOBA   0.9554   All paid up to 2007   No pending debt
59
    04012511X01     DARDANELOS   0.1982   All paid up to 2007   No pending debt
60
    04003615X01     DIECINUEVE DE SETIEMBRE   0.5719   All paid up to 2007   No pending debt
61
    04004653X01     DON PABLO   0.0464   All paid up to 2007   No pending debt
62
    04003023X01     EL RAYO   0.2082   All paid up to 2007   No pending debt
63
    04003024X01     EL TRUENO   0.0741   All paid up to 2007   No pending debt
64
    010211705     EL TRUENO 1-1   0.0256   Was Paid for 2006   No pending debt
65
    010211805     EL TRUENO 1-2   0.0323   Was Paid for 2006   No pending debt
66
    04008033X01     ESPAÑA   0.112   All paid up to 2007   No pending debt
67
    04006692X0     FARALLON   7.986   All paid up to 2007   No pending debt
68
    010212705     FEBRERO 20   0.1933   Was Paid for 2006   No pending debt
69
    04008586X01     FLORENCIA   0.1164   All paid up to 2007   No pending debt
70
    0403093AY01     FLORENCIA - A   0.2448   All paid up to 2007   No pending debt
71
    04004527X01     GAVIOTA   0.9225   All paid up to 2007   No pending debt
72
    0404527AX01     GAVIOTA - A   1.8589   All paid up to 2007   No pending debt
73
    04008276X01     GRANADA   5.5781   All paid up to 2007   No pending debt
74
    04004591X01     GUILLERMO BILLINGHURST   0.276   All paid up to 2007   No pending debt
75
    04002568X01     HUALGAYOC   0.0451   All paid up to 2007   No pending debt
76
    04002567X01     HUANCAVELICA   0.0314   All paid up to 2007   No pending debt
77
    04006355X01     HUAROCHIRI   0.5925   All paid up to 2007   No pending debt
78
    04006355X01     HUARON 123   209.6609   All paid up to 2007   No pending debt
79
    010250094     HUARON 24   1.6569   All paid up to 2007   No pending debt
80
    010250194     HUARON 35   180.9170   All paid up to 2007   No pending debt
81
    04008295X01     JUANA   0.0437   All paid up to 2007   No pending debt
82
    04002211Y01     LA ALIANZA   11.9792   All paid up to 2007   No pending debt
83
    04001001X01     LA CENTRAL   1.9966   All paid up to 2007   No pending debt
84
    04006749X01     LA HUACA   0.7078   All paid up to 2007   No pending debt
85
    0403589AY01     LA HUACA - A   0.0883   All paid up to 2007   No pending debt
86
    0403589BY01     LA HUACA - B   0.0486   All paid up to 2007   No pending debt
87
    04004599X01     LA PEDRERA   0.5145   All paid up to 2007   No pending debt
88
    04000099X01     LA PROVIDENCIA   0.0114   All paid up to 2007   No pending debt
89
    04000998X01     LA TAPADA   3.9931   All paid up to 2007   No pending debt
90
    010212605     LA VENUS   0.0896   Was Paid for 2006   No pending debt
91
    04770771X01     LABOR Y CONSTANCIA   23.959   All paid up to 2007   No pending debt
92
    04001486X01     MANLINCHER   5.9959   All paid up to 2007   No pending debt
93
    04006337X01     MARIA   0.0836   All paid up to 2007   No pending debt
94
    04000632X01     MARTE   0.0798   All paid up to 2007   No pending debt
95
    010212005     MARTE 1-1   0.0433   Was Paid for 2006   No pending debt
96
    010212105     MARTE 1-2   0.0363   Was Paid for 2006   No pending debt
97
    010212205     MARTE 3   0.0100   Was Paid for 2006   No pending debt
98
    04008014X01     MAX   0.0627   All paid up to 2007   No pending debt
99
    04008013X01     MICHEL   0.5375   All paid up to 2007   No pending debt
100
    04002570X01     MOROCOCHA   0.0677   All paid up to 2007   No pending debt
101
    04007963X01     NUESTRA SEÑORA DEL MILAGRO   11.9793   All paid up to 2007   No pending debt
102
    04002435Y01     NUESTRA SEÑORA DEL ROSARIO   0.1614   All paid up to 2007   No pending debt
103
    04002617X01     OLVIDO   2.4026   All paid up to 2007   No pending debt
104
    04000999X01     ORACULO   3.993   All paid up to 2007   No pending debt
105
    04006436X01     PACHITEA   0.7729   All paid up to 2007   No pending debt
106
    04007960X01     PANDORA   1.9966   All paid up to 2007   No pending debt
107
    04000811X01     PLANETA   1.9965   All paid up to 2007   No pending debt
108
    04012743X01     RELAVE FRANCOIS - 1   60.000   All paid up to 2007   No pending debt
109
    04001253Y01     ROSARIO   2.1132   All paid up to 2007   No pending debt
110
    04007524X01     ROSARIO NUMERO CINCO   0.01   All paid up to 2007   No pending debt
111
    04008019X01     ROSARIO NUMERO CUATRO   0.0246   All paid up to 2007   No pending debt
         
43-101(PanAm)   Huaron Mine   33
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
                    Debts regarding validity    
No.   Registry #     Concession   Hectares1   fees   Penalties
112
  04001130X01     SACERDORTIZA   0.1416   All paid up to 2007   No pending debt
113
  04004654X01     SANTIAGO   0.0341   All paid up to 2007   No pending debt
114
  04008039X01     SEVILLA   0.0608   All paid up to 2007   No pending debt
115
  04012512X01     TEUTONIA 79   0.0425   All paid up to 2007   No pending debt
116
  04012513X01     TEUTONIA DOS-79   3.5061   All paid up to 2007   No pending debt
117
  04012514X01     TEUTONIA TRES-79   0.01   All paid up to 2007   No pending debt
118
  04004857X01     VEINTE DE FEBRERO   0.1448   All paid up to 2007   No pending debt
119
  04002221Y01     VENUS   1.2216   All paid up to 2007   No pending debt
Notes:
 
[1] Area according to the 2007 Mining Concessions Cadastre prepared by INGEMMET. This is the real and updated area of the concessions as they are recorded with the Mining Cadastre. The area in the Mining Cadastre may differ from that appearing in the mining concessions file with the Public Registry. Although registration of a mining concession with the public registry grants its titleholder with enforceability against the State and third parties, the area appearing in the Mining Cadastre is more accurate and prevails. Actually, the Public Registry should reflect the exact area that is recorded in the Mining Cadastre. Considering that almost all the titles of the mining concessions which are part of Quiruvilca Mining Unit were granted in the early or mid 1900’s, in order to accurately determine whether or not there is an overlap with another mining concession it would be necessary to review and analyze the Mining Cadastre Map of the Quiruvilca Mining Unit.
 
[2] Division of these properties are pending the entire area of the concession as reported by INGEMMET minus the amount transfrerred to Empressa Minera Chungar S.A.C is reported.
 
[3] The mining concession “HUARON 1” partially overlaps the following priority rights: Marte, Constancia, Constancia – A, Manlincher, Alicia, Pachitea, C.P.H. No. 55, C.P.H. No. 55-A, C.P.H. No. 24, C.P.H. No. 5, C.P.H. No. 7, C.P.H. No. 33, C.P.H. No. 33-A, C.P.H. No. 65, Acumulación Huaron — 1, Acumulación Huaron – 3 and Acumulacion Huaron – 4.
 
[4] The mining concession “HUARON 2” partially overlaps the following priority rights: Florencia –A, Max – A, CMH No. 3 – A, Rosario, Alianza y Firmeza, Alianza y Firmeza – A, La Providencia, La Alianza, Venus, Venus – A, Balcón de Judas, Marte – B, Labor y Constancia, Planeta, Cometa, Cagliostro, Animas, La Tapada, Oráculo, Bálsamo, La Central, Sacerdotiza, Huancavelica, Hualgayoc, Morococha, Alpamina, Pandora, Olvido, El Rayo, El Trueno, Apuro, Diecinueve de setiembre, Gaviota, Florencia, Guillermo Billinghurst, Santiago, Anita, Naticocha, Huarochiri, CPH No. 1, CPH No. 2, CPH No. 4, CPH No. 5, CPH No. 6, CPH No. 15, Nuestra Señora del Milagro, Michel, Max, España, Juana, CMH No. 2, CMH No. 16, Dardanelos, Providencia – A, Alpamina – A, El Trueno – A, Gaviota – A, CPH No. 1-A, CPH No. 2-A, Acumulación Huaron 1, Acumulación Huarón 2 , Acumulación Huarón 3, Acumulación Huarón –A, Acumulación Huarón 6
 
[5] The mining concession “HUARON 3” partially overlaps the following priority rights: Abundancia, Catorce de abril, Huarochiri, Esperanza, España, Farallón, La Huaca, Nuestra señora del milagro, Rosario número cuatro, Evilla, Granada, CMH No. 2, CMH No. 24, CMH No. 22, CMH No. 23, CMH No. 25, CMH No. 27, CMH No. 28, CMH No. 44, CMH No. 45, CMH No. 49, CMH No. 50, CMH No. 51, CMH No. 53, CMH No. 52, CMH No. 54, CMH No. 57, CMH No. 58, CMH No. 59, Demasía CMH No. 26, CMH No. 78, CMH No. 79, CMH No. 84-DOS, Teutonia 79, Teutonia Dos-79, Teutona Tres – 79, Rosario No. 6, Rosario Séptimo – 79, Veinte de Febrero, CMH No. 46, CMH No. 72, Demasía CMH No. 29, Relave Francois – 1, CMH No. 70, CMH No. 42, CMH No. 71, Halcón de Judas, Florencia, CMH No. 3, Pandora, Rosario número cinco, CMH No. 34, CMH No. 43, CMH No. 56, Acumulación Huaron 6, Acumulación Huaron 7, Acumulación Huaron 1 y Acumulación Huaron 2.
         
43-101(PanAm)   Huaron Mine   34
         

 


 

     
(LOGO)   (PAN AMERICA LOGO)
     
Table 6-3: Existing Surface Rights
                 
DATE   HECTARES   PROPERTY   STATE
COMMUNITY OF HUAYLLAY ZONE
Oct. 23, 1996
    3     Estancia Wuishcas   Land Purchase
 
          142 Ha. in Francois,    
 
          including Tailings storage,    
Mar. 28, 2000
    167     25 Ha. in Satelite zone,   Easement
 
          Shelby – San Jose    
 
          transmission line    
Dec. 11, 2000
    11     Community of Huayllay   Easement
Apr. 4, 2002
    2.5     Shuisha and Tailings storage   Easement
Apr. 4, 2002
    50     Various   Easement
Jan. 7, 2004
    9.79     Tailings storage and   Easement
 
          electrical transmission    
Jun. 11, 2007
    60.26     Trapiche and community    
 
          lands   Easement
Jun. 20, 2007
    2     Quebrada de Condorcayan   Easement
COMMUNITY OF HUAYCHAO ZONE
 
          Industrial Area of Francois    
Mar. 14, 2000
    11     plus San Jose — Francois   Easement
 
          Transmission Line    
HUAYLLAY NATIONAL SANCTUARY ZONE
Not Reviewed
    472.969     Presidio “San Jose”   PASH Ownership
         
43-101(PanAm)   Huaron Mine   35
         

 


 

(LOGO)   (PAN AMERICA LOGO)
6.3 Property Ownership
Since January 2006, the Huaron property has been owned and operated by PASH, a company in which PAS, indirectly through its subsidiaries, owns 100% of the outstanding voting shares and 99.93% of the total outstanding equity. Pan American Silver S.A.C. Mina Quiruvilca and Cia Minera Huaron merged to form the new Pan American Silver S.A. Mina Quiruvilca effective January 2006.
Pan American Energy Corporation was incorporated under the Company Act (British Columbia) on March 7, 1979 and underwent two name changes, the last occurring on April 11, 1995, when the present name Pan American Silver Corp. was adopted. Amendments to the memorandum of PAS to date have been limited to name changes and capital alterations. In May of 2006, PAS obtained shareholder approval to amend its memorandum and articles, including the increase in the authorized share capital of the company from 100,000,000 to 200,000,000 common shares in connection with the company’s required transition under the Business Corporations Act (British Columbia).
PAS’ head office is situated at 1500 — 625 Howe Street, Vancouver, British Columbia, Canada, V6C 2T6 and their registered and records offices are situated at 1200 Waterfront Centre, 200 Burrard Street, Vancouver, British Columbia, Canada, V7X 1T2. The Company’s web site can be found at www.panamericansilver.com.
6.4 Agreements
To the best of PAS’ knowledge, verified by Rodrigo, Elias & Medrano, the Hauron Property is not subject to any royalties or encumbrances other than those disclosed herein and the mining royalty tax. In June 2004, Peru’s congress approved a new bill that allows royalties to be charged on mining projects based on net smelter returns. The progressive rates are as follows:
1.0% for companies with sales up to $60 million
2.0% for companies with sales between $60 to $120 million
3.0% for companies with sales greater than $120 million
Huaron Mine’s revenue for 2006 was approximately $70.6 million. A 1% royalty was payable on the first $60 million, while the balance of the revenue attracted a 2% royalty. The total royalty tax on the Huaron Mine’s production amounted to approximately $1.0 million in 2006, $0.3 million in 2005 and $0.2 million in 2004.
         
43-101 (PanAm)   Huaron Mine   36

 

 


 

(LOGO)   (PAN AMERICA LOGO)
6.5 Permits
6.5.1 Water Use Permit for Mining
By means of Administrative Resolution, Nº 025-2000-CTARP/ATDRP dated October 26, 2000, granted by the Irrigation District Technical Administration of the Pasco Region, PASH is authorized to use surface water for mining activities. Surface water use of up to 320 litres per second is permitted from the system of interconnected Shegui, Huaroncocha, Quimacocha, Naticocha and Llacsacocha lakes.
The permit does not require renewal unless an increase in volume is requested, but will expire if two consecutive years pass without payment. PAS’ payments are in good standing.
6.5.2 Water Use Permit for Human Consumption
By means of administrative Resolution Nº 084-2004-GRP/DRA dated July 15, 2004, granted by the Irrigation District Technical Administration of the Pasco Region PASH is authorized to use surface water for human consumption. Water use for human consumption of up to 1.84 litres per second is permitted from the Llacsacocha Lake.
The permit does not require renewal but will expire if two consecutive years pass without payment. PAS’ payments are in good standing.
6.5.3 Permit to Release Effluents
By means of DR Nº 0647/2005/DIGESA/S dated May 04, 2005, DIGESA has granted authorization to the Huaron Mine to discharge effluents for a volume of up to 20.6 million m3/year as per the following volumes and effluents:
                 
Monitoring       Flow (litres   Volume
Station   Location   per second)   (m3/year)
EF-01
  Level 500 - Pomacancha Canal   85.11     2,684,028.96
EF-02
  Entrance Level 400 - Trapiche   24.22     763,801.92
EF-03
  Paul Nevejans Tunnel - Level 250   476.55     15,028,480.80
EF-05
  Tailings Dam Nº5; leakage from the lower section of the main dike.   57.36     1,808,904.96
EF-06
  Huayllay Tailings Dam   10.00     315,360.00
A petition requesting the renewal of effluents discharge states authorization was initially filed on April 26, 2007, before the term authorized in the aforementioned resolution had elapsed, and it is currently under the evaluation of DIGESA at the Ministry of Health.
6.5.4 The Domestic Landfill Permit
The existing landfill for the Hauron Mine is nearly at the end of its design capacity and a new facility is in the permitting stage. The Environmental Impact Assessment for the proposed new facility has been delivered to DIGESA. The external consultant hired to carry out the design is currently preparing modifications to the submission in response to DIGESA’s comments.
         
43-101 (PanAm)   Huaron Mine   37

 

 


 

(LOGO)   (PAN AMERICA LOGO)
6.5.5 The Operating Permit
By DR Nº 105-80-EM/DCFM dated July 9, 1980, MEM granted a business license to PASH for the Francois Processing Plant with an installed capacity of 2,000 tpd. The mine is currently compiling the documentation in order to apply for an increase in the authorized processing capacity to 2,800 tonnes per day.
6.5.6 Tailings Storage Permits
The enlargement and stabilization of Dam Nº5 was approved by MR Nº 391-2001-EM/DGAA on November 30, 2001 as part of the Program of Environmental Remediation and Management (“PAMA”).
6.5.7 Acquisition and Use of Explosives Permit
On June 26, 2007 the Global Authorization for the 2nd semester of 2007 (“the Authorization”) was issued in favor of the Huaron unit for the following explosives and related products:
         
Dynamite:
  118,798  kg.
Rapid Igniter Chord:
    231,254  m.
Detonator Chord:
    300,032  m
Emulsion Explosives:
  44,705  Units
Slow Igniter:
  158,893  Units
Ammonium Nitrate:
  277,386  kg
Non electric detonator:
  238,340  units
By the Authorization, PASH was also expressly authorized to use the remainder of the explosive materials existing in the explosives storage deposit, as well as to acquire materials that were pending from the 1st semester of 2007.
On July 23, 2007 the requested extension of the Authorization for Using ANFO in certain areas of the Huaron property was approved and therefore extended for those areas as per the technical filing.
In addition, PASH’s explosives storage deposit has been authorized by means of Directorial Resolution No.2589-2005-IN-1703-2.
6.5.8 Archaeology Certificates
The Certificate of Non-Existence of Archaeology Remains — CIRA Nº 2006 — 279 was granted as part of environmental impact assessment (“EIA”) for the power line.
         
43-101 (PanAm)   Huaron Mine   38

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
6.6 Liabilities
In the opinion of the authors of this Technical Report, PASH’ largest liabilities with respect to the Huaron property are:
   
mine closure work;
 
   
localized areas of acid rock drainage from the mine’s tailings deposit areas;
 
   
metal-laden waters discharged from the mine;
 
   
and the containment and stability of the existing tailing impoundments.
Before PAS acquired its interest in the Huaron property, Cia Minera Huaron S.A. (“Minera Huaron”) had filed a PAMA with the government on July 26, 1996 in compliance with Peruvian regulations. The PAMA addressed, among other things, stability of tailings impoundments, water quality and the fact that liquid effluents from the mine exceeded certain permissible levels of metals, as well as the required re-vegetation of a historic tailings area near the adjacent town. The PAMA set forth an implementation time line of nine months for Huaron to make certain expenditures to address the environmental issues raised. In January of 1997 and March of 1998, the Minister of Energy and Environment consented to the modification of certain expenditures under the PAMA and an extension of the implementation time line.
As a result of the 1998 flood of the adjacent Animon Mine, waters inundated portions of the Huaron Mine, causing a temporary closure of the mine. For this reason, Minera Huaron was not able to satisfy all of its obligations under the PAMA in accordance with the established implementation time line. Given the magnitude of the incident at the Huaron Mine, in December 2001, the Minister of Energy and Environment granted further modification of the PAMA and an extension of implementation time. At the same time, the Minister of Energy and Environment approved a special program of environmental management (“PEMA”) to continue until the end of 2005.
Minera Huaron completed requirements under the PAMA program, and compliance and expenditures have been audited by third party consultants. Under the PEMA program, work was focused on two projects: remediation of water quality exiting within the old workings and closure of the historic Huayllay tailings impoundment. Remedial work started on the Huayllay tailings impoundment in 2004 and was completed in 2005.
6.6.1 Mine Closure
In August of 2006, PAS submitted a comprehensive closure plan for the Huaron Mine to MEM in accordance with its regulations. The closure plan was prepared by SVS Ignenieros S.A , a third party consultant registered with the Peruvian authorities as qualified to present closure plans to the MEM. The closure plan includes a summary of the proposed closure scheme for each of the major areas of impact such as mine water, tailings areas, waste rock dumps, plant site infrastructure, and underground mine. A detailed cost estimate was prepared based on PAS’ and the consultant’s shared experience with closure works over the past 12 years and experience with other projects in Peru.
         
43-101 (PanAm)   Huaron Mine   39

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
The current present value of expenditures for closure work is $9.2 million. This cost estimate serves as the basis for the calculation of the financial guarantee required by the ministry’s closure plan regulations. The authors of this Technical Report believe that $9.2 million is a reasonable estimate of the cost of closure and rehabilitation to meet legislated standards and as such is a reasonable provision for the mine’s long term closure liability.
6.6.2 Acid Rock Drainage and Metal Laden Waters
Before PAS acquired its interest in the Huaron Mine, Minera Huaron had filed a PAMA with the Peruvian government on July 26, 1996 in compliance with Peruvian regulations. One of the issues addressed within the PAMA was that the liquid effluent discharge from the mine exceeded certain permissible levels of metals.
The site water quality at the Huaron Mine has improved due to the expansion and modification of the effluent management and treatment system. Water from the tailings facility and the upper levels of the mine are now combined with the flows from the lower level of the mine. The flows are directed via a borehole from the upper level to the lower level of the Huaron Mine where they are directed to a lime addition and sedimentation treatment system. Following the implementation of treatment system, the water quality at the downstream discharge point is at levels permitted by Peruvian regulations. The sampling program is ongoing and the water quality is expected to further improve.
During 2004 and 2005, water quality has met pH standards and a majority of metal compliance standards. The closure planning process, now underway with the support of independent consultants, will define closure and further mitigation options for improving water quality exiting within the site.
The authors of this Technical Report conclude that the mine’s water neutralization system is adequate for the size of operation.
6.6.3 Containment and Stability of Tailing Impoundments
Remedaition of the Huallay and Trapiche tailings impoundment are complete and the remediation of the Condorcayan tailings impoundment is 50% complete.
Varouis changes to the dam design of the functioning tailings impoundment, Presa #5, have been implemented and details are discussed in Section 24.4. The changes addressed improve dam stability and engineering design work has been completed for the construction of the dam.
         
43-101 (PanAm)   Huaron Mine   40

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
7. Accessibility, Climate, Local Resources, Infrastructure and Physiography
7.1 Accessibility
Access to the Huaron property is by a continuously maintained 285 km paved highway between Lima and Unish and a 35 km gravel road between Unish and the Huaron property. A program by the Peruvian government to upgrade the road between Unish and the Huaron property to a paved highway is partially complete.
Alternatively, the property can be accessed from Lima by two other routes; Lima-Huaral-Huaron (210km) and Lima-Canta-Huaron (215km). However these roads are gravel and travel over more treacherous terrain.
There is also a light aircraft airstrip at Vicco, which is approximately 30 minutes flying time from Lima, at which point an additional 30 minutes of driving is required to reach Huaron.
Lead and Zinc concentrates produced at the Huaron Mill are loaded and transported by road to the port at Callao near Lima. Copper concentrate with high silver grades is transported to the La Oroya smelter.
7.2 Climate and Physiography
The topographical relief at the mine site is hilly and uneven with local slopes of more than sixty degrees. The Huaron Mine is located at elevations of 4,250 metres to 4,800 metres above sea level. Natural vegetation consists mainly of grasses forming meadows. These meadows have permitted development of varied livestock operations.
The climate at the mine site is classified as a “cold climate” or “boreal” with average annual temperatures ranging from three to ten degrees Celsius. The winter months are May to September and minimum temperatures reach minus 5.7 oC. The average monthly rainfall in 2006 was 71 mm. The Huaron Mine operates throughout the entire year.
         
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(PICTURE)
7.3 Local Resources and Infrastructure
7.3.1 Manpower
Peru’s economy is dependent on mining and the Huaron property is in a historical mining area with a sufficient supply of experienced mining personnel to support operations. In addition, PAS has been dedicated in developing programs to train and retain people.
As of December 31, 2006, PASH directly employed 625 full time employees (208 permanent and 417 temporary) and indirectly employed 940 persons through agreements with Peruvian mining contractors. Employees commute to the property via company sponsored bussing, company vehicles, or privately owned vehicles.
7.3.2 Infrastructure
Access to the mine is via three adits driven into the side of the mountain at levels 500, 420, and 250. The main haulage level is on Level 500. The mine uses a combination of locomotives and haul trucks through an inter-level ramp system to move ore. In addition, there are three de-commissioned shafts on site; studies have concluded that it is economically viable to refurbish and deepen the D shaft. This work is included in the economic analysis as part of the 2008 and 2009 capital programs.
Following the mine closure caused by flooding, the plant re-started operations in 2001. The circuit consists of crushing, ball mill grinding, selective flotation and filtering. Some reconfigurations and additions have been completed as part of a value-added initiative, which is an on-going program started at the end of 2005. The plant currently has a rated throughput capacity of 2,300 tonnes per day (“tpd”).
Tailings from the processing plant are pumped to the Presa #5 tailing impoundment. A number of changes to the impoundment design have been implemented, as recommended by external consultants, to improve damn stability. The current plans for Presa #5 will allow for tailing disposal into 2012. As Presa #5 gradually increases in height, it will eventually encapsulate Presa #1 to #4, directly upstream of Presa #5.
         
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The continuous fresh water supply requirements for the Huaron concentrating plant average 91.7 litres per second. The water is gravity fed from the Llacsacocha Lake with an 8” diameter pipe and is directed to the mill, flotation, and other areas of the plant. The layout of the plant, tailings impoundment, and Lake Llacsacocha are shown in Figure 6-2B.
Mine water is directed down to the Level 250, where it flows by gravity out of the mine through the Paul Nevejans drainage tunnel and daylights in the San Jose zone. There is a water treatment plant near the tunnel exit where the water is treated and released back into the environment. The sediments within the water are allowed to dry, then are hauled back to Presa #5 for permanent storage.
The primary source of power for the Huaron Mine is the Peruvian national power grid and is sufficient for the Mine’s current requirements.
         
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8. History
The Huaron Mine is an underground mine with both narrow and wide veins of silver-rich base metal sulphides, as well as replacement mineralization in conglomerates and dissemination in sediments. The mine, mill and supporting villages were originally built and operated by a subsidiary of the French Penarroya Company from 1912 to 1987. In 1987, the mine was sold to Mauricio Hochschild and Cia Ltda. Prior to its acquisition by PAS, approximately 22 million tonnes of silver-rich base metals sulphide ore were mined from the Huaron property. Silver was the main constituent, contributing about 49% of the historic sales value, with zinc, lead and copper, 33%, 15% and 3% respectively, making up the remainder. Ore from the mine was processed on-site by crushing, grinding, and differential flotation to produce copper, lead and zinc concentrates.
In April, 1998, a portion of the lakebed of the nearby Lake Naticocha collapsed, and water from the lake flowed into the adjacent Animon Mine (operated by an unrelated company). Through interconnected tunnels, the water entered and flooded the Huaron Mine, causing its closure.
After the April 1998 flooding, the Huaron Mine operations were shut down, the labour force was terminated, the village closed and work was undertaken to clean up the flood damage, drain the workings and prepare for an eventual mine re-opening. The water level in the lake, which provided the source of floodwater, is currently maintained well below the level where it flooded the old workings and PASH does not expect a threat of further flooding. The Animon Mine, in accordance with a settlement agreement reached with Cia. Minera Huaron S.A. in September 2000, constructed a channel to route water around the lake to provide water for the Huaron Mine and to reduce the water in upstream lakes to prevent agricultural flooding, which had created local social pressures.
During this time, PAS saw the opportunity to double its Peruvian silver production and acquired a 72.6% majority interest in the Huaron Mine from Mauricio Hochschild and Cia Ltda. The acquisition cost to PAS included 1,780,389 common shares of Pan American shares and 700,000 ten-year stock options at an exercise price of $4.00. In addition, a 2.16% net smelter return royalty would be payable after 4.3 million tonnes of ore had been mined. On October 23, 2003, the Company purchased this existing net smelter royalty on its Huaron silver mine for cash consideration of $2,500,000.
A feasibility study to re-open the mine was completed by May 2000 and PAS was able to arrange financing by August, with construction beginning in September. Final estimates for the re-construction tallied to $10.1M and financing was secured through Standard Bank London Limited to Pan American Silver Peru, a wholly owned subsidiary of PAS. A summary of the capital costs to re-instate Huaron Mine is shown in the following table.
         
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Table 8-1: Summary of costs to re open the Huraon operations
         
Mill Repairs   $ 2.4M  
Mine Rehabilitation   $ 2.4M  
Pre-production Costs   $ 1.5M  
Tailings Stabilization   $ 0.75M  
Working Capital   $ 0.70M  
Other   $ 2.35M  
Production at the Huaron Mine officially re-commenced April 2001. By August 2001, PAS completed another transaction to obtain the outstanding 27% interest of Huaron mining operation from Mauricio Hochschild and Cia Ltda. The exchange involved 48 ha of Huaron’s land adjacent to Volcan’s operations and two parcels of distal Huaron exploration property for the 27% interest plus $200,000 in cash and $500,000 in Volcan shares.
As of January 2006, the Huaron property is owned and operated by Pan American Silver S.A. Mina Quiruvilca, a company that was formed by the merger of the Pan American Silver S.A.C. Mina Quiruvilca and Cia Minera Huaron S.A.. Production and historical mineral reserves since PAS’s acquistion are as follows:
Table 8-2: Production at Huaron, since PAS acquisition
                                                                 
HUARON MILL PRODUCTION  
            Silver     Copper     Lead     Zinc     Tonnes of Concentrate  
    Tonnes Milled     (ounces)     (tonnes)     (tonnes)     (tonnes)     Copper     Lead     Zinc  
2006
    693,285       3,664,660       1,603       6,858       11,735       6,716       17,002       24,975  
2005
    639,849       3,690,786       1,689       6,774       11,701       7,470       16,162       23,110  
2004
    635,845       4,080,737       1,754       10,569       15,041       7,030       20,253       34,314  
2003
    905,790       4,365,061       1,332       14,246       18,855       5,687       14,246       34,819  
2002
    606,300       4,527,971       1,740       14,006       20,896       6,249       14,006       43,988  
2001
    367,274       2,897,946       959       8,445       9,574       3,915       8,445       14,237  
 
                                               
TOTAL
    3,848,343       23,227,161       9,077       60,898       87,802       37,067       90,114       175,443  
 
                                               
Table 8-3: Historical Reserves at Huaron, since PAS acquisition
                                         
Historical Proven & Probable Reserves  
Year*   Tonnes     Ag (g/t)     Cu (%)     Pb (%)     Zn (%)  
2006
    7,354,026       208       0.34 %     1.90 %     3.29 %
2005
    6,756,335       221       0.42 %     2.14 %     4.02 %
2004
    6,547,870       241       0.44 %     2.41 %     4.17 %
2003
    5,914,700       249       0.46 %     2.54 %     4.63 %
2002
    6,684,825       252       0.50 %     2.39 %     4.55 %
2001
    5,998,670       258       0.49 %     2.26 %     4.26 %
*  
Reported as beginning of year
         
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9. Geological Setting
9.1 Regional Geology
The Huaron property is located within the Western Cordillera of the Andes Mountains. The regional geology of Huaron property is dominated by the Cretaceous Machay Group limestones and Tertiary Pocobamba (Casapalca Red Beds) continental sedimentary rocks. These groups have been deformed by the Huaron anticline, the dominant structural feature of the area. A map of the regional geology is included in Figure 9-1A.
The Machay Group limestones and Pocobamba sedimentary rocks are strongly folded, and are intruded by quartz monzonites and quartz monzonite dikes, with accompanying fracturing. This fracturing was followed by alteration and mineral deposition by hydrothermal fluids. Following the intrusion of the dikes, the sedimentary rocks were further compressed and fractured, and the fractures were subsequently mineralized by hydrothermal fluids. The dikes have undergone extensive hydrothermal alteration, typified by sericitization, kaolinization and pyritization. The entire sedimentary sequence has been covered with the Huayllay pyrocalstics (mainly ignimbrites) which have a post mineralization age.
9.2 Local Geology
The main lithology in the Huaron area is a sequence of continental “redbeds” consisting of interbedded sandstones, limestones, marls, conglomerates, breccias and cherts of the Abigarrada and Casapalca Formations of Upper Cretaceous to Lower Tertiary age. These rocks unconformably overlay massive marine limestones of the Upper Cretaceous Jumasha Formation. To the west of the mine, a series of andesites and dacites outcrop of the mid to lower Tertiary Calipuy Formation. A series of sub-vertical porphyritic quartz monzonite dykes generally strike north-south and cut across the mine stratigraphy.
The rocks in the central part of the mine and at lower elevations are principally thinly bedded marls and sandstones known as the lower redbeds. In the eastern side of the mine a sequence of upper redbeds occur. The upper section of these rocks consists of calcareous Sevilla chert that overlies sandstones and marls. The bottom of this sequence consists of the Barnabe quartzite conglomerate. In the western side of the mine, the stratigraphy consists of a series of interbedded conglomerates and sandstones. The conglomerate contains poorly sorted limestone and quartz clasts in a sandy matrix.
The Huaron Mine is located within an anticline formed by east-west compressional forces. The axis of the anticline is approximately north-south, gently plunging to the north. There are two main fault systems:
 
Thrust Faults, striking north to south, parallel to the axis of the anticline
 
 
Tensional Faults, striking east to west.
In the Huaron area, monzonite intrusives strike in two principal directions: N70°E and S10°E. They have recognizable elongated outcrops throughout the property. These intrusives were emplaced in the Casapalca Formation and in the Calipuy Volcanics. The monozonite stock’s thickness varies, reaching thicknesses up to 300 m. These two predominant orientations are also observed inside the Huaron Mine. Most of the area is covered with recent soils except where the more resistant cherts and conglomerates form ridges parallel to the flanks of the anticline. These outcrops are discontinuous and are frequently offset by the crosscutting east-west faults.
Figure 9-1B is a localized depiction of the regional geology map.
         
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9.2.1 Lithostratigraphy
The known lithostratigraphy is interpreted as follows:
1) Casapalca Formation
The Casapalca Formation consists of up to 1,000 metres of lutites, limonites, and red colored sandstones. Toward the base, there are conglomerate beds containing clasts of limestone, red sandstone, intrusives and subangular schists. Toward the top there is a predominance of whitish limestones with intercalations of reddish conglomeritic sandstone. It contains three members:
   
Lower Member formed by red lutites, semi-consolidated grayish-green to reddish sandstones, and conglomerates with various limestone beds and lenses. The thickness of this member is between 150 and 200 metres.
 
   
Shuco Conglomerate Member containing conglomerates with limestone, quartzite, chert, red sandstone and phyllite clasts within a calcareous, brecciated matrix. The clasts have sub-angular borders and are variable in size. The thickness varies between 150 to 200 metres.
 
   
Calera Member consists at the base of marls and lutites in thin strata, grading to limestones and dolomites with chert nodules. The thickness is approximately 60 to 65 metres. The centre is composed of limestones and marls with intercalations of finely bedded lutites measuring over 50 metres in thickness. Toward the top there are limestones and dolomites with chert nodules in the whitish grey middle beds.
Calipuy Formation
The volcanoclastic sediments of the Calipuy Formation lie in a discordant contact over the Casapalca Formation, and were deposited after the period of folding, erosion and uplift, which affected the Casapalca Formation. It consists of pyroclastic rocks, lavas, ignimbrites, tuffs, rhyolites and dacites.
Four different Members have been recognized in the Huaron region.
   
Yantac Member, a volcano-sedimentary sequence formed by clastic and pyroclastic rocks, varying from conglomerates to grayish-brown sandstones, limonites and multi-colored (green to brown, purple, pink, grey, white and brown) lutites. Toward the top of the member, there are intercalations of tuff, breccia, andesitic agglomerates and andesitic flows. The thickness varies between 60 and 150 metres. This sequence is dated from Paleocene to Eocene.
         
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Carlos Francisco Member consists of porphyritic andesite flows occasionally intercalated by flows of volcanic breccia and massive porphyry. Its thickness varies between 400 and 1000 metres and is of Eocene to Oligocene age.
 
   
Colqui Member consists of andesitic flows alternating with fine tuff, lapilli and agglomerates. There are thin beds of sandstone and tuffaceous limestone present. Its thickness is 200 metres and it is of Eocene to Oligocene age.
 
   
Millotingo Member was formed by andesitic to rhyodacitic and occasionally trachyandesitic lavic flows. Its average thickness is 180 metres and is of an Upper Olibocene to Lower Miocene age.
Rumillana Formation
The Rumillana Formaton consists of an Upper Miocene volcanoclastic sequence of agglomerates and tuffs. The agglomerates contain angular and sub-angular limestone clasts, phyllite, chert and strongly altered pophyritic clasts. They are intercalated by pyroclastics and lava flows. The entire sequence is up to 150 metres thick.
Pacococha Formation
The younger Pacococha Formation was formed by andesitic to basalt flows and thin tuff layers. The formation reaches up to 150 metres in thickness and is dated to a Miocene to Pliocene age.
Huayllay Formation
During the Pliocene Age and after the latest teconic event, ignimbrites of the Huayllay Formation have been deposited covering the Cretaceous and Tertiary sedimentary and volcanic sequences in an angular disconformity.
Quaternary deposits
Pleistocene alluvial deposits, marine deposits, fluvioglacial deposits, peat deposits, colluvial deposits and alluvial deposits are the most common quaternary sediments.
9.2.2 Structural Geology
FOLDING
The Huaron Mine is within an anticline formed by east-west compressional forces. The axis of the anticline is approximately north-south, gently plunging to the north. There are two main fault systems: (i) north-south striking thrust faults, parallel to the axis of the anticline; and (ii) east-west striking tensional faults. The intrusives strike in two principal directions: N70°E and S10°E. Most of the area is covered with recent soils except where the more resistant cherts and conglomerates form ridges parallel to the flanks of the anticline. These outcrops are discontinuous and are frequently offset by the crosscutting east-west faults.
         
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FAULTS
Large dislocations accompanied by secondary faults occur in the region. These secondary faults in the Huaron area are represented by the Huaychao-Cometa Fault (N-S) and the Llacsacocha Fault (E-W). Both faults together divide the deposit into four sectors.
Local faults recognized later through the mining works are: Shiusha Fault (related to the Pozo D Fault) and the Tapada Fault (related to the Anteabigarrada Fault). Many local faults exist which are directly related to the mineralization.
         
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10. Deposit Type
The Huaron Mine consists of a hydrothermal polymetallic silver-copper-lead-zinc deposit probably related to Miocene monzonite dykes principally within, but not confined to, the Huaron anticline. Mineralization occurs mainly in veins but also in Mantos (stratiform orebodies) and replacement orebodies. More than 95 different minerals have been identified at the Huaron Mine. The most important economic minerals are silver bearing tennantite-tetrahydrite, sphalerite and galena. Ore bearing veins vary from a few centimeters to 10 metres wide, and may extend along strike for up to 1,800 metres. The deepest exploration drill holes have indicated that there is there is over 500 metres of down dip mineralization. Most of the structures show open mineralization at depth and have excellent exploration potential.
The types of deposits are defined as follows:
 
Veins
Veins are tabular structures emplaced in tensional or compressional fractures. Their thicknesses vary from centimetres up to 10 metres. Two main systems exist (NS and EW).
 
Mantos
Mantos are formed by stratiform mineralization replacing limestone beds and limestone clasts in conglomerates. They are mostly localized on the western flank of the anticline and have irregular shapes with limited lateral extension.
 
Orebodies
Orebodies have been discovered at the intersection of veins and at the intersection of veins with conglomerate or limestone beds. Stockwork bodies also exist at the intrusive-sandstone contact.
Distribution of mineral reserves by deposit type is shown in Graph 10-1.
PASH is currently focused on exploring the continuity of existing veins in the horizontal and vertical directions. Table 10-1 is a list of the existing structures and associated mineral deposits on the Huaron property. These structures are shown in Figure 6-3.
         
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Table 10-1: Mineralized Structures
GENERAL INDEX OF MINERALIZED STRUCTURES
1.   
ALIANZA STRUCTURE
 
 
ALIANZA VEIN
 
 
UNO SPLIT
 
 
DOS SPLIT
 
2.   
CAPRICHOSA STRUCTURE
 
 
CAPRICHOSA VEIN
 
 
CAPRICHOSA SPLIT
 
 
SHARON SPLIT
 
3.    
COMETA STRUCTURE
 
 
COMETA VEIN
 
 
COMETA SPLIT
 
4.    
CONSTANCIA STRUCTURE
 
 
CONSTANCIA VEIN
 
5.    
CUATRO STRUCTURE
 
 
CUATRO VEIN
 
 
NUEVEDEAGOSTO SPLIT
 
 
TREINTAYNUEVE SPLIT
 
6.   
FASTIDIOSA STRUCTURE
 
 
FASTIDIOSA VEIN
 
 
FASTIDIOSA SPLIT 1
 
 
FASTIDIOSA SPLIT 2
 
 
FASTIDIOSA SPLIT 3
 
 
FASTIDIOSA SPLIT 4
 
 
SPLIT 4
 
 
JUANITA SPLIT
 
 
KATY SPLIT
 
7.    
GAVIA STRUCTURE
 
 
GAVIA VEIN
 
 
ELENA SPLIT
 
 
LABORESTE SPLIT
 
 
LABOROESTE SPLIT
 
 
OCHENTAYUNO SPLIT
 
 
OCHENTAYUNOESTE SPLIT
 
 
PROVIDENCIA SPLIT
 
8.   
LLACSACOCHA STRUCTURE
 
 
LLACSACOCHANORTE SPLIT
 
 
LLACSACOCHASUR SPLIT
9.   
OCHENTAYCINCO STRUCTURE
 
 
OCHENTAYCINCO VEIN
 
10.    
PATRICK STRUCTURE
 
 
PATRICK VEIN
 
 
ANITA SPLIT
 
 
DANITZA SPLIT
 
 
JULY SPLIT
 
 
LUCERO SPLIT
 
 
MARGARITA SPLIT
 
 
MARTIN SPLIT
 
 
MILY SPLIT
 
 
PAOLA SPLIT
 
 
PATRICIA SPLIT
 
 
PATRICK SPLIT
 
 
ROQUE SPLIT
 
 
ROQUE SPLIT 1
 
 
ROSA SPLIT
 
 
ROSARIO SPLIT
 
 
ROXANA SPLIT
 
 
TATOO SPLIT
 
 
TOTEE SPLIT
 
 
XIMENA SPLIT
 
11.   
REY STRUCTURE
 
 
REY VEIN
 
 
BARNABE SPLIT
 
12.    
SAN NARCISO STRUCTURE
 
 
SAN NARCISO VEIN
 
 
LORENA SPLIT
 
 
MARIANA SPLIT
 
 
MARIBEL SPLIT
 
 
SAN NARCISO SPLIT 20
 
 
SORPRESA SPLIT
 
 
SURPRISE SPLIT
 
 
SURPRISE SPLIT 1
 
 
SURPRISE SPLIT 2
 
 
VIVIANA SPLIT
 
 
YADIRA SPLIT
13.    
SAN PEDRO STRUCTURE
 
 
SAN PEDRO VEIN
 
 
SAN PEDRO SPLIT 1
 
 
SAN PEDRO SPLIT 102
 
 
SAN PEDRO SPLIT 2
 
 
SAN PEDRO SPLIT 5
 
 
SAN PEDRO SPLIT 6
 
 
SAN PEDRO SPLIT 8
 
 
SESENTAYCUATRO SPLIT
 
 
SETENTAYSEIS SPLIT
 
14.   
SHIUSHA WARREN STRUCTURE
 
 
SHIUSHA WARREN VEIN
 
 
SHIUSHA SPLIT C
 
 
SHIUSHA SPLIT SUR
 
15.   
TAPADA STRUCTURE
 
 
TAPADA VEIN
 
 
PRODUCTORA SPLIT
 
 
SAN FRANCISCO SPLIT
 
16.    
TRAVIESO VEIN
 
 
TRAVIESO VEIN
 
17.    
YANACRESTON STRUCTURE
 
 
YANACRESTON VEIN
 
 
NOVENTAYCINCO SPLIT
 
 
NOVENTAYCUATRO SPLIT
 
 
OCHO SPLIT
 
 
YANACRESTON SPLIT
 
18.    
YANAMINA STRUCTURE
 
 
YANAMINA VEIN
         
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11. Mineralization
The most economic minerals are silver bearing tennantite-tetrahydrite, sphalerite, and galena. An electron microprobe analysis on silver bearing ore shows that 62% of the silver content is associated with tetrahedrite. Graph 11-1 shows the distribution of silver by mineral type. The principal gangue minerals are pyrite, quartz, calcite and rhodochrosite.
Paragenesis of the region demonstrates three distinct and sequential stages of deposition.
First Stage
The initial mineralization consists of relatively high-temperature minerals deposited in the following order: milky quartz, pyrite, enargite, and tetrahedrite. Enargite dominates the mineralization in the central part of the district, while tetrahedrite dominates the outer part of the enargite zone.
Second Stage
Re-opening of the fractures caused the initial mineralization to be brecciated, and the breccia was subsequently cemented by the next, second-period generation of medium-temperature minerals: milky quartz, brown sphalerite, and galena.
Third Stage
A final, third period of re-fracturing, followed by a rapid deposition of hydrothermal minerals, resulted initially in the formation of colloform and botryoidal textures. This rapid deposition continued with fine-grained crystallization and continuous late precipitation of carbonates, starting with siderite and gradually changing to dolomite, rhodochrosite, and calcite. As a final pulse during this late-stage deposition, barite, pale to reddish amber-colored sphalerite, galena, tetrahedrite, polybasite and chalcopyrite were deposited.
A summary of the Paragensis is shown on Figure 11-1.
11.1 Mineral Zones
There is a defined mineral zoning at Huaron and the mine has been divided into seven separate zones as shown on Figure 11-2.
Zone 1 contains silver, lead and zinc associated with pyrite.
Zones 2, 3 and 4 silver, lead and zinc are found in carbonates, principally calcite and rhodochrosite.
Zone 5 is the central copper core where the principal mineral is enargite. The structures contain copper with pyrite and quartz. This area was extensively mined by previous operators but, because of the high arsenic and antimony content and poor metal recoveries, mining in this area has ceased.
Zone 6 is principally lead and zinc with lower silver values within carbonates.
Zone 7 is a narrow band running north-south along the general axis of the anticline and contains principally sphalerite and silver-sulfosalts with rhodochrosite.
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Graph 11-2 shows the distribution of mineral reserves by zones.
The hydrothermal alteration of the wall rocks is argillization-silicification (associated with the copper zone), potassic (associated with the lead-zinc zone), epidotization-pyritization associated with the silicified zone) and chlorite-magnetite (found in the whole deposit).
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12. Exploration
Exploration at the Huaron Mine is conducted using a combination of underground drilling and drifting. Generally, underground drillholes that intersect promising ore grade mineralization are followed by drifting for mineral resource and mineral reserve definition. During 2006, 11,451 metres were drilled using three drill rigs. In addition, 6,256 metres of underground drifting were completed for mineral resource and mineral reserve definition.
In addition to the underground drilling a smaller amount of surface drilling is executed every year. In 2006 141 metres of BQ sized surface diamond drilling was completed. As of September 31, 2007, no surface drill-holes had been completed withing 2007.
PASH employs their own exploration drilling crew and has two diamond drill rigs. In addition, PAS is currently contracting Redrilsa S.A, a large Peruvian diamond drilling contractor. All exploration drilling is directed and supervised by the Huaron Mine geology department and is periodically reviewed by Dr. Michael Steinmann, P. Geo., Senior Vice President of Exploration and Geology of PAS,.
A summary of the amount of drilling completed in 2006 and to the end of September 2007 is shown in Table 12.1.
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Table 12-1: Summary of 2006 and 2007 (to September) Diamond Drilling Exploration.
Summary of 2006 Diamond Drilling Exploration
                     
                Total  
            # of   Metres  
Zone   Level   Vein Intersected   Holes   Drilled  
Surface
  Surface   no intersects   2     141.20  
Norte
  530   Fastidiosa exploraciones   1     150.00  
 
  500   Surprise   1     58.60  
 
  280   July   2     143.30  
 
      Fastidiosa   2     65.30  
 
      Julia   2     154.90  
 
      Sorpresa   1     52.70  
 
  250   July   1     36.00  
 
      Aglomerado   4     1,203.80  
 
      Fastidiosa   5     343.65  
 
      Patrick   14     2,440.55  
 
      Ramal 1   2     264.70  
 
      Sorpresa   1     7.20  
 
      Travieso   7     875.80  
 
      Ximena   4     298.20  
Satelite
  600   Drenaje   2     42.30  
 
      Fastidiosa piso   2     189.80  
 
      Llacsacocha   2     338.10  
 
      Llacsacocha superficie   1     202.00  
 
      Pack Sack   1     15.20  
 
      Patrick   2     438.60  
Sur
  500   Sorpresa   2     171.95  
 
      Sorpresa Ramal 1   2     226.10  
 
      Surprise   2     155.30  
 
  420   Cometa   4     408.50  
 
      Constancia   12     2,234.20  
 
      Fastidiosa   1     217.30  
 
      Fastidiosa Ramal 1   3     323.95  
 
      Sorpresa   1     72.10  
 
      Yadira   1     61.40  
 
  320   San Narciso   1     18.30  
 
  280   July   1     100.00  
 
               
 
      Total   89     11,451.00  
 
               
Summary of 2007 Diamond Drilling Exploration
                     
                Total  
            # of   Metres  
Zone   Level   Vein Intersected   Holes   Drilled  
Norte
  420   Cuatro Ramal   1     201.70  
 
      no intercept   2     291.80  
 
      Veta Fastidiosa   2     422.60  
 
  250   Juanita Ramal   1     68.00  
 
      no intercept   5     584.45  
 
      Ramal Danitza   2     231.40  
 
      Veta Alianza   6     457.80  
 
      Veta Fastidiosa   1     173.70  
 
  180   no intercept   1     40.80  
Satelite
  600   no intercept   11     907.85  
 
  530   no intercept   3     425.10  
 
  500   no intercept   1     123.30  
 
  250   Veta Fastidiosa   1     88.25  
SUR
  530   Veta Surprise   1     150.60  
 
  500   no intercept   6     755.40  
 
      Veta Surprise   1     159.60  
 
  430   no intercept   1     295.40  
 
  420   no intercept   16     1,953.56  
 
      Veta Alianza   2     259.60  
 
      Veta Llacsacocha   7     1,435.38  
 
      Veta San Narciso   3     199.50  
 
      Veta Surprise   6     788.10  
 
  320   no intercept   2     359.70  
 
      Veta Roxana   1     170.85  
                   
 
      Total   83     10,544.44  
                   
         
43-101 (PanAm)   Huaron Mine   55

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
13. Drilling
Exploration at the Huaron property is conducted using a combination of diamond drilling and underground drifting. Currently five diamond drills are in continuous operation at the property, drilling holes between 50 and 350 m length. Two drill rigs belong to PASH and 3 to Redrilsa S.A. a Peruvian drill contractor. Drill core recoveries are generally high and average 88.3% for the surface and underground drilling. Positive exploration results are followed by underground drifting and cross-cutting. The majority of diamond drilling is done from underground working, of holes sizes BQ, NQ, and HQ diameter. In 2006, 89 holes were drilled targeting 26 different structures. The results are presented in Table 13-1.
In 2007 (as of the end of September), 87 holes totaling 10,544 m were drilled targeting 21 different structures. The results are presented in Table 13-2º. A greater number of holes were drilled in Llascacocha, Fastidiosa, and Alianza veins providing a good indication of mineral continuity.
Surveys of the drill-hole collars are completed and verified by the engineering department and the inclination of the holes are determined by the geologist in the field using a compass to verify the working angle of the drill rods. Down-hole surveys are not used as the holes are generally short and considering the good rock mass quality (RQD >70) it is assumed that potential deviations are very minor.
Drill-hole orientations are planned in order to intersect the targeted vein in an angle close to 90* if possible. The strike and dip angle of most target veins are known and true width of a drill intersect can be easily calculated for day to day reporting purposes using trigonometrical functions. Hole collar information as well as hole lengths, rock types, sampling results and RQD information are loaded into the Datamine database and converted into true widths by the software used for mineral resource estimation.
Drill cores are placed in wooden core boxes and transported to the core logging facility on site. The boxes are properly marked and numbered by the drill crews and tags are inserted to indicate the drill depths. After receiving the core, logging is initiated by the geology department. In a first step, the responsible geologist measures the core length between two tags and calculates the core recovery by comparing the core length to the tag depths. Afterwards, fracture density is recorded in order to determine the rock quality (RQD). Lithology, structures and alterations are logged and the geologist marks sampling intervals on the core.
Cores are split in half using a saw with diamond blade. Half of the core is sent for analysis to the on-site laboratory and the other half is stored on-site in core boxes.
Logging information is entered into the DHLogger software where it is automatically combined with the sampling results from the lab using the Fusion software. Log sheets are printed out for each hole and stored on-site. The electronic database with all the logging information is periodically backed up by the IT department.
         
43-101 (PanAm)   Huaron Mine   56

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
Table 13-1: Result from 2006 Underground Diamond Drilling
                                                             
                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-3706
  Aglomerado     337.37       338.32       0.95       172.94       0.05       2.46       5.87  
DDH-3706
  Aglomerado     338.32       339.42       1.10       64.13       0.04       3.02       6.10  
DDH-3706
  Aglomerado     339.42       339.61       0.19       84.98       0.05       3.07       9.62  
DDH-2706
  Conglomerado     302.74       303.57       0.83       333.88       0.22       6.90       29.63  
DDH-3106
  Conglomerado     422.30       423.27       0.97       122.76       0.11       1.64       9.41  
DDH-3106
  Conglomerado     423.27       423.50       0.23       117.70       0.10       0.82       8.94  
DDH-3106
  Conglomerado     423.50       425.10       1.60       44.28       0.04       2.57       1.91  
DDH-3106
  Conglomerado     425.10       426.30       1.20       47.91       0.01       0.11       0.30  
DDH-3106
  Conglomerado     426.30       427.05       0.75       378.33       0.03       0.26       0.52  
DDH-3106
  Conglomerado     427.05       428.45       1.40       125.93       0.02       0.38       0.80  
DDH-3106
  Conglomerado     428.45       429.55       1.10       69.36       0.03       0.97       3.08  
DDH-5506
  Constancia     151.00       151.70       0.70       197.98       1.57       0.28       0.60  
DDH-5806
  Constancia     163.22       164.30       1.08       207.05       3.41       0.22       0.85  
DDH-6306
  Constancia     155.70       156.40       0.70       147.00       0.36       0.06       0.06  
DDH-6406
  Constancia     137.35       138.26       0.91       133.00       1.01       0.04       0.15  
DDH-6506
  Constancia     187.34       188.40       1.06       57.76       0.10       0.68       1.58  
DDH-6706
  Constancia     140.25       140.98       0.73       50.30       0.09       0.07       0.83  
DDH-6906
  Constancia     193.76       195.00       1.24       99.80       0.19       0.15       0.80  
DDH-7306
  Constancia     181.63       184.34       0.71       169.00       0.54       0.91       1.88  
DDH-7306
  Constancia     182.34       182.77       0.43       838.00       14.75       0.16       0.47  
DDH-0106
  Fastidiosa     16.16       16.43       0.27       769.51       0.04       19.09       2.87  
DDH-0106
  Fastidiosa     16.43       17.11       0.68       311.77       0.04       3.86       1.66  
DDH-1006
  Fastidiosa     23.96       24.24       0.28       1649.59       1.27       16.15       15.67  
DDH-1306
  Fastidiosa     39.05       39.60       0.55       209.57       0.07       1.76       1.47  
DDH-4306
  Fastidiosa     48.40       49.18       0.78       204.51       0.05       6.54       6.90  
DDH-4406
  Fastidiosa     32.20       32.36       0.16       127.08       0.04       4.05       10.83  
DDH-4606
  Fastidiosa     43.30       44.18       0.88       58.84       0.08       2.70       3.38  
DDH-4806
  Fastidiosa     31.60       32.22       0.62       145.49       0.08       2.84       1.57  
DDH-1306
  Fastidiosa     39.60       39.80       0.20       2223.40       0.58       3.83       0.93  
DDH-7506
  Fastidiosa Piso     45.30       46.45       1.15       133.00       0.11       2.02       2.67  
DDH-7506
  Fastidiosa Piso     46.45       48.35       1.90       535.00       0.02       0.52       2.17  
DDH-7506
  Fastidiosa Piso     48.35       49.60       1.25       111.00       0.07       1.44       4.37  
DDH-1406
  Halley     47.56       48.17       0.61       114.00       0.04       2.30       3.75  
DDH-1406
  Halley     48.17       48.77       0.60       152.08       0.04       2.96       2.87  
DDH-1406
  Halley     48.77       49.38       0.61       21.04       0.01       0.21       0.20  
DDH-1606
  Halley     31.99       32.50       0.51       111.47       0.08       5.31       5.43  
DDH-1606
  Halley     32.50       33.40       0.90       145.35       0.12       4.34       5.89  
DDH-1606
  Halley     33.40       34.20       0.80       248.60       0.06       8.63       2.82  
DDH-1406
  Halley     49.38       50.00       0.62       129.45       0.04       3.39       3.00  
DDH-1406
  Halley     50.00       51.00       1.00       267.29       0.08       6.14       9.03  
DDH-1406
  Halley     51.00       52.00       1.00       170.99       0.06       4.51       6.02  
DDH-1406
  Halley     52.00       52.60       0.60       172.78       0.04       3.93       3.80  
DDH-1406
  Halley     52.60       52.80       0.20       100.43       0.03       2.06       2.81  
DDH-1406
  Halley     53.79       54.36       0.57       119.19       0.05       1.74       1.49  
DDH-1406
  Halley     54.36       55.00       0.64       163.80       0.06       3.43       5.03  
DDH-1406
  Halley     55.00       55.64       0.64       212.86       0.05       4.50       4.06  
DDH-1406
  Halley     55.86       56.40       0.54       74.41       0.03       1.40       1.99  
DDH-1406
  Halley     56.40       56.98       0.58       256.86       0.09       6.11       6.24  
DDH-1406
  Halley     56.98       57.65       0.67       210.08       0.05       4.11       4.11  
DDH-1406
  Halley     57.65       58.24       0.59       220.10       0.08       4.88       4.28  
         
43-101 (PanAm)   Huaron Mine   57

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
                                                             
                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-1406
  Halley     58.24       58.84       0.60       282.47       0.08       6.26       4.74  
DDH-1406
  Halley     58.84       59.40       0.56       422.69       0.09       8.51       4.48  
DDH-1406
  Halley     59.40       60.00       0.60       87.63       0.03       1.72       3.57  
DDH-1406
  Halley     60.00       61.00       1.00       262.24       0.06       5.28       4.92  
DDH-1406
  Halley     61.00       61.70       0.70       363.52       0.11       7.03       10.54  
DDH-1406
  Halley     61.70       62.29       0.59       180.50       0.05       3.58       4.26  
DDH-1406
  Halley     62.29       62.87       0.58       253.98       0.06       5.25       5.10  
DDH-1406
  Halley     62.87       63.47       0.60       131.06       0.03       3.20       2.78  
DDH-1406
  Halley     63.47       63.96       0.49       77.82       0.04       1.65       2.73  
DDH-1406
  Halley     63.96       64.36       0.40       799.89       0.22       26.28       13.57  
DDH-1406
  Halley     64.36       64.90       0.54       328.77       0.07       4.91       2.92  
DDH-1406
  Halley     64.90       65.80       0.90       81.93       0.02       1.64       1.79  
DDH-1406
  Halley     65.80       66.60       0.80       118.17       0.04       3.13       3.57  
DDH-1406
  Halley     66.60       67.50       0.90       102.56       0.02       1.49       1.83  
DDH-1406
  Halley     67.50       68.10       0.60       178.71       0.03       3.25       1.96  
DDH-1406
  Halley     68.10       69.26       1.16       100.08       0.04       1.46       2.14  
DDH-1606
  Halley     34.20       34.80       0.60       268.06       0.09       8.01       4.59  
DDH-1606
  Halley     34.80       35.80       1.00       131.88       0.08       3.78       4.16  
DDH-1606
  Halley     35.80       36.60       0.80       116.16       0.04       4.05       2.37  
DDH-1606
  Halley     36.60       37.60       1.00       63.51       0.04       3.13       2.68  
DDH-1606
  Halley     37.60       38.10       0.50       108.86       0.04       3.91       3.62  
DDH-1606
  Halley     38.10       38.80       0.70       155.06       0.09       4.65       6.49  
DDH-1606
  Halley     38.80       39.60       0.80       82.54       0.03       1.44       3.19  
DDH-1606
  Halley     39.60       40.40       0.80       53.63       0.02       1.01       1.77  
DDH-1606
  Halley     40.40       41.00       0.60       227.76       0.06       2.16       1.44  
DDH-1606
  Halley     41.00       41.60       0.60       217.44       0.11       5.97       8.73  
DDH-1606
  Halley     43.34       43.92       0.58       261.12       0.07       3.56       2.42  
DDH-1606
  Halley     43.92       44.40       0.48       326.20       0.08       6.97       3.85  
DDH-1606
  Halley     44.40       44.87       0.47       124.28       0.04       2.35       1.94  
DDH-1606
  Halley     46.91       47.40       0.49       409.73       0.17       11.60       6.45  
DDH-1606
  Halley     47.40       48.18       0.78       271.39       0.07       6.82       1.60  
DDH-1606
  Halley     48.18       48.79       0.61       84.21       0.04       1.98       0.86  
DDH-1606
  Halley     48.79       49.38       0.59       520.57       0.13       16.94       4.37  
DDH-1606
  Halley     49.38       50.40       1.02       502.23       0.11       10.71       2.57  
DDH-1606
  Halley     50.40       51.17       0.77       138.79       0.03       5.57       0.78  
DDH-1606
  Halley     51.17       52.00       0.83       943.78       0.21       13.19       0.73  
DDH-1606
  Halley     52.79       53.40       0.61       345.80       0.13       10.99       6.26  
DDH-1606
  Halley     53.40       54.00       0.60       74.38       0.03       2.33       2.35  
DDH-1606
  Halley     54.00       55.00       1.00       78.97       0.04       1.99       0.82  
DDH-1606
  Halley     55.00       56.20       1.20       31.97       0.02       0.63       0.52  
DDH-1606
  Halley     56.20       57.00       0.80       58.82       0.03       1.64       0.25  
DDH-1606
  Halley     57.00       57.78       0.78       61.56       0.02       2.00       0.66  
DDH-1606
  Halley     57.78       58.40       0.62       127.25       0.03       2.32       2.58  
DDH-1606
  Halley     58.40       58.80       0.40       365.36       0.07       10.02       12.07  
DDH-1606
  Halley     58.80       59.57       0.77       249.74       0.04       4.94       8.61  
DDH-0206
  July     44.21       44.80       0.59       322.26       0.07       4.62       10.07  
DDH-0206
  July     44.80       45.65       0.85       857.03       0.05       4.36       11.52  
DDH-0206
  July     45.65       46.30       0.65       96.44       0.03       0.51       5.72  
DDH-0206
  July     46.30       46.94       0.64       353.94       0.06       2.97       6.49  
DDH-0206
  July     46.94       47.23       0.29       427.60       0.07       5.16       8.66  
DDH-0206
  July     47.23       47.70       0.47       54.42       0.04       0.50       4.48  
DDH-0206
  July     47.70       48.11       0.41       77.82       0.07       0.87       5.59  
DDH-0306
  July     36.55       37.04       0.49       376.92       0.07       12.21       4.12  
DDH-0306
  July     39.40       39.70       0.30       511.67       0.06       16.13       2.46  
DDH-0606
  July     29.06       29.91       0.85       278.33       0.07       8.76       14.32  
DDH-7406
  July     16.94       17.78       0.84       398.00       0.25       3.72       29.05  
         
43-101 (PanAm)   Huaron Mine   58

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
                                                             
                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-3906
  Llacasacocha (superficie)     149.30       149.70       0.40       69.92       0.01       0.41       3.98  
DDH-3906
  Llacasacocha (superficie)     149.70       150.70       1.00       213.53       0.23       0.60       4.15  
DDH-3906
  Llacasacocha (superficie)     150.70       151.70       1.00       120.56       0.03       0.75       3.97  
DDH-4706
  Llacsacocha     97.36       97.93       0.57       398.69       0.08       1.99       4.02  
DDH-3406
  Martin     91.09       91.34       0.25       2892.20       2.18       3.29       0.55  
DDH-2006
  Mily     0.00       121.08       121.08       106.77       0.02       1.37       4.26  
DDH-2006
  Mily     121.08       121.95       0.87       54.02       0.03       0.84       3.57  
DDH-2006
  Mily     121.95       122.53       0.58       21.19       0.02       0.19       5.17  
DDH-2006
  Mily     122.53       123.15       0.62       53.45       0.11       0.25       4.04  
DDH-2006
  Mily     123.15       123.80       0.65       247.14       0.35       3.15       11.88  
DDH-3506
  Mily     46.77       47.73       0.96       202.43       0.04       1.78       1.55  
DDH-3506
  Mily     47.73       48.68       0.95       238.39       0.03       2.60       1.07  
DDH-3506
  Mily     48.68       49.69       1.01       176.46       0.03       3.55       1.53  
DDH-3506
  Mily     49.69       50.45       0.76       307.27       0.05       6.03       3.26  
DDH-0906
  Patrick     11.42       11.55       0.13       595.70       0.20       26.61       18.30  
DDH-3606
  Patrick     96.40       97.40       1.00       376.41       0.10       4.25       7.01  
DDH-4206
  Patrick     65.70       65.75       0.05       143.39       0.02       1.76       5.86  
DDH-4506
  Patrick     21.28       22.00       0.72       448.04       0.11       8.41       2.25  
DDH-4506
  Patrick     22.00       23.00       1.00       23.82       0.01       0.43       0.79  
DDH-4506
  Patrick     23.00       24.00       1.00       232.36       0.06       3.93       0.93  
DDH-4506
  Patrick     24.00       25.20       1.20       475.04       0.10       16.83       8.06  
DDH-4506
  Patrick     25.20       26.20       1.00       117.26       0.05       3.95       2.94  
DDH-4506
  Patrick     26.20       27.00       0.80       539.10       0.03       17.97       1.10  
DDH-4506
  Patrick     27.00       28.00       1.00       91.61       0.08       2.40       1.80  
DDH-4506
  Patrick     28.00       29.00       1.00       360.39       0.05       12.25       9.88  
DDH-4506
  Patrick     29.00       30.50       1.50       211.53       0.13       0.85       2.05  
DDH-4506
  Patrick     30.50       31.84       1.34       1179.03       0.54       20.00       10.58  
DDH-4906
  Patrick     107.47       108.20       0.73       70.42       0.06       2.40       3.42  
DDH-4906
  Patrick     108.20       109.20       1.00       79.52       0.09       3.57       4.20  
DDH-5206
  Patrick     136.05       137.00       0.95       318.80       0.18       8.65       9.43  
DDH-6606
  Patrick     13.88       14.52       0.64       217.79       0.17       0.70       26.11  
DDH-7006
  Patrick     166.10       166.89       0.79       195.00       0.11       4.39       7.13  
DDH-7006
  Patrick     166.89       167.20       0.31       23.90       0.40       0.28       0.27  
DDH-7006
  Patrick     167.20       168.39       1.19       138.00       0.06       3.17       4.97  
DDH-7206
  Patrick     193.65       194.95       1.30       115.00       0.04       1.50       3.11  
DDH-0906
  Patrick     11.55       12.40       0.85       132.57       0.05       6.03       2.72  
DDH-0906
  Patrick     12.40       13.40       1.00       103.52       0.01       3.71       1.50  
DDH-0906
  Patrick     13.40       13.95       0.55       154.55       0.06       5.21       3.22  
DDH-0906
  Patrick     16.81       17.93       1.12       17.98       0.01       0.19       0.41  
DDH-0906
  Patrick     17.93       18.12       0.19       87.12       0.02       3.54       0.60  
DDH-0906
  Patrick     18.12       19.09       0.97       384.15       0.06       12.55       11.98  
DDH-0906
  Patrick     19.09       19.90       0.81       156.77       0.04       6.40       4.43  
DDH-2906
  Ramal 1     115.80       116.50       0.70       374.93       0.74       0.55       1.12  
DDH-2906
  Ramal 1     116.50       117.30       0.80       1427.09       2.62       0.97       1.28  
DDH-2906
  Ramal 1     117.30       117.55       0.25       2022.49       19.23       1.44       2.71  
DDH-3006
  Ramal 1     110.80       111.75       0.95       140.80       0.08       0.66       0.69  
DDH-2306
  Sorpresa     100.80       101.18       0.38       295.56       0.10       0.31       3.83  
DDH-4006
  Sorpresa     68.20       69.30       1.10       523.03       0.26       0.34       0.78  
DDH-0406
  Surprise     72.70       73.60       0.90       235.99       0.06       0.58       0.80  
DDH-1706
  Surprise     88.70       89.31       0.61       581.72       0.20       1.42       1.18  
DDH-1806
  Travieso     133.76       134.80       1.04       280.89       1.44       0.27       2.31  
         
43-101 (PanAm)   Huaron Mine   59

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
                                                             
                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-1806
  Travieso     134.80       135.80       1.00       410.54       2.45       0.54       3.70  
DDH-1806
  Travieso     135.80       136.80       1.00       185.67       1.05       0.43       1.88  
DDH-2606
  Travieso     133.27       134.36       1.09       263.63       0.14       1.05       0.66  
DDH-2806
  Travieso     133.83       134.60       0.77       202.42       0.22       0.30       1.80  
DDH-3206
  Travieso     137.16       137.87       0.71       89.22       1.85       0.11       0.36  
DDH-5106
  Ximena     50.42       51.00       0.58       371.05       0.17       1.59       0.42  
DDH-5306
  Ximena     52.50       53.40       0.90       167.80       0.08       3.60       3.98  
DDH-5406
  Ximena     47.70       49.20       1.50       283.81       0.10       4.22       9.94  
         
43-101 (PanAm)   Huaron Mine   60

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
Table 13-2: Result from 2007 Underground Diamond Drilling
                                                             
                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-0107
  Juanita Ramal     46.00       47.00       1.00       1341.00       4.00       0.35       0.86  
DDH-0107
  Juanita Ramal     57.10       57.70       0.60       221.00       0.25       6.07       5.53  
DDH-0107
  Juanita Ramal     57.70       58.77       1.07       139.00       1.29       0.91       1.02  
DDH-0107
  Juanita Ramal     58.77       59.70       0.93       29.70       0.08       0.17       0.52  
DDH-0107
  Juanita Ramal     59.70       60.62       0.92       151.00       0.29       4.57       4.93  
DDH-0107
  Juanita Ramal     65.10       66.50       1.40       442.00       1.42       0.82       3.23  
DDH-0107
  Juanita Ramal     66.50       67.13       0.63       277.00       0.61       0.58       2.57  
DDH-0107
  Juanita Ramal     67.13       67.84       0.71       55.50       0.05       0.21       1.17  
DDH-6707
  Ramal Danitza     94.55       95.35       0.80       122.35       0.24       0.14       0.52  
DDH-6707
  Ramal Danitza     95.35       96.15       0.80       185.60       0.12       0.41       0.70  
DDH-6907
  Ramal Danitza     23.11       23.40       0.29       37.29       0.02       1.30       5.89  
DDH-6907
  Ramal Danitza     35.80       36.02       0.22       57.97       0.02       1.52       3.22  
DDH-6907
  Ramal Danitza     54.43       54.52       0.09       452.96       0.08       7.88       8.08  
DDH-6907
  Ramal Danitza     55.94       56.17       0.23       992.43       0.15       8.83       1.58  
DDH-6907
  Ramal Danitza     56.57       56.68       0.11       4051.36       0.29       14.02       3.40  
DDH-6907
  Ramal Danitza     87.18       87.29       0.10       2043.99       0.66       4.87       2.38  
DDH-6907
  Ramal Danitza     109.88       110.10       0.22       231.66       0.21       6.13       11.99  
DDH-6907
  Ramal Danitza     110.10       110.40       0.30       242.04       0.09       2.61       2.41  
DDH-6907
  Ramal Danitza     110.40       110.80       0.40       1620.55       0.39       13.79       11.14  
DDH-6907
  Ramal Danitza     110.80       111.31       0.51       204.46       0.03       0.41       0.14  
DDH-0407
  Veta Alianza     64.33       64.90       0.57       785.00       0.32       2.81       2.97  
DDH-0407
  Veta Alianza     64.90       66.70       1.80       95.60       0.09       0.17       0.57  
DDH-0407
  Veta Alianza     66.70       67.59       0.89       26.90       0.10       0.03       0.42  
DDH-0407
  Veta Alianza     67.59       68.20       0.61       606.00       1.09       0.34       0.34  
DDH-0807
  Veta Alianza     114.94       115.35       0.41       104.79       0.11       1.28       0.49  
DDH-0807
  Veta Alianza     115.35       116.06       0.71       120.47       0.09       3.58       2.65  
DDH-0807
  Veta Alianza     116.06       117.61       1.55       295.54       0.20       1.67       1.51  
DDH-0807
  Veta Alianza     117.61       119.03       1.42       111.18       0.12       1.58       3.49  
DDH-5407
  Veta Alianza     33.10       33.65       0.55       127.63       0.25       1.79       8.19  
DDH-5407
  Veta Alianza     33.65       33.95       0.30       295.06       1.44       0.25       3.05  
DDH-5407
  Veta Alianza     33.95       34.90       0.95       140.27       0.13       1.64       5.28  
DDH-5407
  Veta Alianza     34.90       36.00       1.10       125.45       0.09       1.45       4.85  
DDH-5407
  Veta Alianza     36.00       37.35       1.35       82.43       0.07       0.57       2.41  
DDH-5407
  Veta Alianza     37.35       38.40       1.05       69.87       0.12       0.19       0.77  
DDH-5407
  Veta Alianza     38.40       39.20       0.80       110.69       0.42       0.56       2.72  
DDH-5407
  Veta Alianza     39.20       40.10       0.90       61.71       0.09       0.95       3.60  
DDH-5607
  Veta Alianza     51.35       52.10       0.75       48.22       0.14       0.79       3.10  
DDH-5607
  Veta Alianza     52.10       52.80       0.70       50.55       0.19       0.57       2.77  
DDH-5607
  Veta Alianza     52.80       53.50       0.70       96.96       0.37       0.56       3.28  
DDH-5807
  Veta Alianza     34.54       35.25       0.71       11.37       0.01       0.94       2.00  
DDH-5807
  Veta Alianza     40.90       41.70       0.80       24.20       0.05       0.28       1.44  
DDH-5907
  Veta Alianza     46.04       47.10       1.06       160.77       0.36       0.76       1.81  
DDH-6307
  Veta Alianza     71.91       72.95       1.04       139.89       0.44       0.72       4.11  
DDH-6307
  Veta Alianza     72.95       74.05       1.10       420.08       1.52       1.03       8.19  
DDH-6307
  Veta Alianza     74.05       74.85       0.80       226.58       5.68       1.22       1.83  
DDH-6307
  Veta Alianza     74.85       75.70       0.85       153.08       1.14       1.52       6.17  
DDH-6607
  Veta Alianza     79.84       80.85       1.01       910.37       0.20       7.58       0.62  
DDH-6607
  Veta Alianza     80.85       81.55       0.70       1559.18       1.19       0.28       0.26  
DDH-6607
  Veta Alianza     81.55       81.65       0.10       7.12       0.01       0.01       0.02  
DDH-6607
  Veta Alianza     81.65       81.88       0.23       402.30       0.40       0.22       0.09  
         
43-101 (PanAm)   Huaron Mine   61

 

 


 

     
(LOGO)   (PAN AMERICA LOGO)
                                                             
                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-6307
  Veta Alianza     39.15       40.27       1.12       73.27       0.53       0.16       2.44  
DDH-1907
  Veta Cuatro     51.30       53.43       2.13       171.57       0.02       3.60       0.49  
DDH-2407
  Veta Fastidiosa     43.67       44.77       1.10       126.29       0.16       2.22       3.51  
DDH-0307
  Veta Fastidiosa     133.33       133.70       0.37       202.00       0.07       0.34       0.03  
DDH-0307
  Veta Fastidiosa     133.70       134.50       0.80       198.00       0.03       2.36       0.13  
DDH-0307
  Veta Fastidiosa     134.50       135.43       0.93       439.00       0.07       6.91       0.45  
DDH-0307
  Veta Fastidiosa     135.43       135.90       0.47       383.00       0.07       9.39       2.27  
DDH-0307
  Veta Fastidiosa     97.65       98.17       0.52       193.00       0.14       0.25       0.06  
DDH-0307
  Veta Fastidiosa     98.17       98.51       0.34       721.00       0.27       3.11       1.99  
DDH-0307
  Veta Fastidiosa     79.56       80.76       1.20       287.00       0.15       7.56       9.53  
DDH-0307
  Veta Fastidiosa     80.76       81.71       0.95       282.00       0.07       5.73       2.79  
DDH-2407
  Veta Fastidiosa     104.80       106.10       1.30       326.98       0.68       1.85       2.20  
DDH-0307
  Veta Fastidiosa     154.64       154.80       0.16       397.00       0.14       6.70       4.24  
DDH-0307
  Veta Fastidiosa     154.80       155.04       0.24       23.30       0.01       0.26       0.35  
DDH-0307
  Veta Fastidiosa     155.04       156.10       1.06       168.00       0.06       2.31       1.33  
DDH-0307
  Veta Fastidiosa     156.10       156.46       0.36       82.30       0.03       1.08       1.07  
DDH-0307
  Veta Fastidiosa     156.46       157.60       1.14       92.60       0.04       0.54       3.17  
DDH-0307
  Veta Fastidiosa     157.60       158.57       0.97       79.90       0.02       0.61       2.72  
DDH-0307
  Veta Fastidiosa     158.57       159.17       0.60       68.50       0.02       0.74       0.89  
DDH-0707
  Veta Fastidiosa     189.47       190.38       0.91       306.00       0.32       0.39       1.24  
DDH-0707
  Veta Fastidiosa     190.38       191.40       1.02       253.54       0.11       0.33       1.02  
DDH-0707
  Veta Fastidiosa     212.70       213.33       0.63       15.74       0.01       0.08       0.05  
DDH-0707
  Veta Fastidiosa     218.28       219.40       1.12       167.56       0.02       0.31       2.54  
DDH-0707
  Veta Fastidiosa     219.40       220.40       1.00       1150.51       0.12       1.55       8.20  
DDH-0707
  Veta Fastidiosa     220.40       221.20       0.80       98.56       0.03       0.18       2.91  
DDH-2407
  Veta Fastidiosa     152.30       153.30       1.00       544.85       0.32       0.96       3.72  
DDH-2407
  Veta Fastidiosa     153.30       154.63       1.33       1611.28       0.99       0.48       2.67  
DDH-5707
  Veta Fastidiosa     103.54       104.30       0.76       99.64       0.02       0.43       3.98  
DDH-5707
  Veta Fastidiosa     104.30       105.30       1.00       136.83       0.13       2.36       12.20  
DDH-5707
  Veta Fastidiosa     105.30       106.70       1.40       83.37       0.07       1.08       7.78  
DDH-5707
  Veta Fastidiosa     107.70       109.13       1.43       139.56       0.07       2.32       1.48  
DDH-5007
  Veta Llacsacocha     116.08       117.70       1.62       102.35       0.21       1.28       2.94  
DDH-5007
  Veta Llacsacocha     117.70       119.30       1.60       1334.32       2.44       0.78       2.59  
DDH-5007
  Veta Llacsacocha     145.90       147.34       1.44       338.06       0.25       0.76       5.64  
DDH-5007
  Veta Llacsacocha     147.34       148.04       0.70       31.76       0.14       0.99       3.82  
DDH-5007
  Veta Llacsacocha     148.04       148.82       0.78       186.19       0.21       0.67       5.49  
DDH-6107
  Veta Llacsacocha     114.01       114.82       0.81       70.53       0.09       1.85       13.68  
DDH-6407
  Veta Llacsacocha     77.07       77.72       0.65       62.05       0.08       0.77       2.26  
DDH-6407
  Veta Llacsacocha     121.51       122.95       1.44       72.55       0.05       1.47       4.72  
DDH-6407
  Veta Llacsacocha     130.49       133.19       2.70       49.41       0.06       0.21       1.34  
DDH-6407
  Veta Llacsacocha     133.19       136.65       3.46       25.54       0.02       0.19       1.26  
DDH-6807
  Veta Llacsacocha     117.90       118.05       0.15       282.23       0.10       0.17       6.83  
DDH-6807
  Veta Llacsacocha     118.05       119.05       1.00       54.25       0.02       1.43       2.94  
DDH-6807
  Veta Llacsacocha     119.05       123.06       4.01       105.90       0.62       0.09       1.50  
DDH-6807
  Veta Llacsacocha     129.03       129.18       0.15       51.25       0.04       0.80       3.84  
DDH-7007
  Veta Llacsacocha     125.55       126.75       1.20       176.32       0.64       0.17       0.28  
DDH-7007
  Veta Llacsacocha     127.55       128.35       0.80       92.30       0.07       1.85       3.86  
DDH-7007
  Veta Llacsacocha     135.45       136.75       1.30       17.51       0.06       0.06       4.56  
DDH-7007
  Veta Llacsacocha     136.75       137.75       1.00       373.45       0.99       0.07       3.90  
DDH-7007
  Veta Llacsacocha     137.75       139.04       1.29       157.17       0.42       0.57       4.50  
DDH-7007
  Veta Llacsacocha     142.75       143.75       1.00       69.08       0.05       0.55       3.87  
DDH-7207
  Veta Llacsacocha     80.52       80.59       0.07       295.84       0.11       8.58       20.12  
DDH-7207
  Veta Llacsacocha     104.59       105.05       0.46       128.27       0.05       1.30       3.68  
DDH-7207
  Veta Llacsacocha     127.22       128.42       1.20       106.91       0.11       0.31       3.31  
DDH-7207
  Veta Llacsacocha     129.70       130.50       0.80       61.76       0.01       0.89       5.33  
         
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                        True Width     Ag     Cu     Pb     Zn  
Drill Hole ID   Objective   From     To     (m)     (g/t)     (%)     (%)     (%)  
DDH-7207
  Veta Llacsacocha     137.38       138.55       1.17       477.19       0.37       0.16       0.53  
DDH-7207
  Veta Llacsacocha     139.65       140.65       1.00       683.22       0.80       0.12       0.28  
DDH-7207
  Veta Llacsacocha     140.65       141.45       0.80       169.48       1.12       0.10       0.20  
DDH-7207
  Veta Llacsacocha     141.45       143.20       1.75       59.93       0.01       1.04       3.54  
DDH-7207
  Veta Llacsacocha     143.20       144.71       1.51       133.99       0.13       0.11       6.78  
DDH-7207
  Veta Llacsacocha     152.31       152.50       0.19       56.73       0.03       1.01       4.40  
DDH-7207
  Veta Llacsacocha     184.34       186.69       2.35       67.26       0.06       0.86       3.18  
DDH-7207
  Veta Llacsacocha     198.03       198.30       0.27       170.34       0.02       0.63       2.29  
DDH-7407
  Veta Llacsacocha     111.21       114.08       2.87       23.55       0.02       0.41       2.31  
DDH-7407
  Veta Llacsacocha     114.08       115.57       1.49       331.56       1.60       0.18       3.12  
DDH-7407
  Veta Llacsacocha     117.20       117.74       0.54       381.41       0.28       0.26       3.21  
DDH-7407
  Veta Llacsacocha     121.05       122.64       1.59       34.14       0.02       1.45       4.41  
DDH-7407
  Veta Llacsacocha     127.10       134.05       6.95       35.54       0.09       0.27       2.45  
DDH-7407
  Veta Llacsacocha     134.05       138.22       4.17       162.40       0.64       0.23       2.33  
DDH-7407
  Veta Llacsacocha     138.22       139.40       1.58       12.99       0.01       0.19       1.65  
DDH-5507
  Veta Roxana     159.60       160.10       0.50       84.95       1.73       0.05       0.23  
DDH-5507
  Veta Roxana     160.10       160.37       0.27       170.31       3.59       0.07       0.54  
DDH-5507
  Veta Roxana     140.46       141.15       0.69       203.59       1.25       0.06       0.20  
DDH-5507
  Veta Roxana     141.15       141.50       0.35       218.54       1.52       0.12       0.24  
DDH-5507
  Veta Roxana     116.07       116.26       0.19       377.56       0.17       0.24       0.28  
DDH-5107
  Veta San Narciso     36.77       37.42       0.65       592.42       0.86       1.11       2.58  
DDH-5107
  Veta San Narciso     37.42       37.85       0.43       515.35       1.04       15.13       27.00  
DDH-5307
  Veta San Narciso     54.35       55.02       0.67       66.55       0.09       0.60       1.25  
DDH-5307
  Veta San Narciso     55.02       55.75       0.73       69.74       0.07       0.68       2.20  
DDH-6207
  Veta San Narciso     5.31       6.30       0.99       117.05       0.13       0.58       3.58  
DDH-6207
  Veta San Narciso     6.30       7.22       0.92       162.03       0.22       2.98       8.20  
DDH-0607
  Veta Surprise     111.60       112.20       0.60       109.03       0.12       3.81       1.70  
DDH-0607
  Veta Surprise     112.20       113.40       1.20       166.93       0.13       4.24       7.57  
DDH-0907
  Veta Surprise     89.81       90.55       0.74       176.63       0.09       6.24       5.78  
DDH-1207
  Veta Surprise     122.43       122.64       0.21       355.22       0.15       0.44       0.18  
DDH-1707
  Veta Surprise     91.93       92.69       0.76       375.88       0.15       14.74       15.24  
DDH-1807
  Veta Surprise     125.27       126.37       1.10       146.06       0.11       4.36       5.50  
DDH-2007
  Veta Surprise     124.49       125.08       0.59       308.96       0.19       7.75       10.17  
DDH-2307
  Veta Surprise     131.85       132.57       0.72       648.86       0.23       7.30       8.63  
DDH-2507
  Veta Surprise     127.25       127.60       0.35       69.66       0.03       1.47       0.76  
         
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14. Sampling Method and Approach
14.1 Introduction
There are no core or sample recovery problems which could have materially impacted the accuracy and reliability of the results. Recovery of drill core samples has averaged 88.3% for surface underground drilling.
PAS has standardized sampling procedures throughout its operations and ensures that its practices meet or exceed industry standards. All sampling is done by PASH personnel under the direct supervision of the site geology department. Procedures and results were reviewed and approved by the authors of this Technical Report.
Drill-holes are sampled after the core has been logged. A geologist determines the vein intersect and marks the sample lengths; lengths vary between 0.10 and 1.5 metres depending on geological observation. The cores are then split using a circular saw with a diamond blade. Half the sample is taken by the geologist to the on-site laboratory and the other half is stored in the core box. In general, the drill cores are in good condition as the rock mass is of good quality (RQD>70). As such there are no issues regarding contamination, during sample splitting.
Channel sampling is a major part of mine development and ore control. Underground sampling is carried out by a trained sample collector and one assistant using hammer and chisel. For stope sampling, a sample is collected every 4 metres across the vein using the chute or access drift as a reference. For sublevels and exploration drifts, samples are collected every 2 metres across the vein. In vertical development, samples are collected every metre. The average sample sent to the laboratory weighs 4 to 6 kg.
All samples are sent to the on-site laboratory in Huaron. SGS entered a 5 year contract with PASH in 2007 to run the laboratory as a third party contractor. SGS laboratory in Lima is accredited for ISO 17025 and applies the same quality standards in the Huaron laboratory as in its main Lima facility.
Within 24hrs of receiving a sample, the laboratory delivers assay results referenced by number, type, location, and metallic values. Sample numbers are bar coded in the lab and assay results are automatically captured by the installed Laboratory Information Management System (“LIMS”), sent to the geology department and then stored in the database.
Channel samples are the main contributor for the calculation of mineral resources and mineral reserves. They are also an important tool in determining mining constraints. As there are over 43,000 channel samples in the PASH database, it is not practical to list them in his Technical Report.
PASH samplers are part of the geology department and are trained to adhere to PAS’ sampling procedures. These procedures were written and issued by Michael Steinmann, P. Geo and are considered to be acceptable within industry norms. On-site there are typically eighteen samplers under the direction and supervision of five experienced geologists.
         
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14.2 Sampling Procedures
Each sample is registered on a sampling card containing the following information: Sample number, name of sampler, date, place of sampling, sample type, x, y, and z coordinates. The procedures have been reviewed and approved by Dr. Michael Steinmann, P.Geo. No re-occurring or systemic errors have been an issue in the operating history of the mine. The data verification procedures have been adequate in identifying errors in the recorded data when they occur.
14.2.1 Drill Core Samples
 
As soon as a new drill hole has been started it is numbered following the system explained below:
 
Drill cores must be cleaned from mud and grease by the drill contractor and placed in provided core boxes of adequate size. The cores are transported to the surface logging shack and logged by an experienced geologist.
 
As soon as possible, the underground survey team surveys the x, y and z coordinates as well as the dip and azimuth of the drill hole.
 
 
Sample intervals are determined by the geologist after the drill-hole has been logged.
 
 
Vein samples vary between 0.1 and 1.5 m long depending on geological observations.
 
 
Hanging and foot wall are sampled for at least 3 m outside visible mineralization. Barren parts in between mineralized intersections are sampled over their entire length if they are smaller than 6 m.
 
 
If the intersects are clearly defined mineralized zones which can be mined separately, the sample length depends on the geology to get independent results for ore and wall rock without compositing.
 
 
The responsible geologist indicates with paint on the core boxes where the sampling has to take place and notes the exact distances on the log sheets.
 
 
The core is sawn longitudinally in two equal half parts without biasing mineralization.
 
 
Once the sample has been packed, the sample number is written on an aluminum tape and stapled to the core box in the sample position. Additionally an aluminum tape with the drill-hole number and consecutive core box number is stapled at the front face of each box.
 
 
Core boxes are stored on metal or wooden racks for easy handling.
 
 
Samples are put into new, clean and transparent plastic bags with two number tags inside and one number and barcode tag outside and closed with a metal strip.
 
 
Assay results from exploration and delineation drill holes are emailed to the chief geologist on-site as well as certain staff members in head office for review. Results are entered into the Century LIMS database by the lab and a hard copy is filed by the geology department.
         
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14.2.2 Channel Samples
Channel samples are taken to sample vein structures. They are always taken perpendicular to structures to avoid introducing bias. If there are cross cutting vein systems, they have to be taken very carefully, to avoid sampling along a possibly mineralized structure. Each sample location contains three samples taken from the vein, hanging wall and foot wall crossing the entire development width. The channel sampling methodology is listed below:
   
Before taking the sample, the face is cleaned from dust, mud or any other contaminating agent. The rock may be washed with a water hose or by brushing it with a hard brush. It is recommendable to expand the cleaning area towards the contour of the channel. It is preferable, however, to take off the external part of the rock along the channel where the sample will be collected.
 
   
The exact location of the channel is marked by drawing two parallel lines separated 20 cm and using spray paint. The location is determined using a measuring tape from the nearest topographic point.
 
   
The channel is carved manually with a chisel and hammer.
 
   
The sample is collected from the total material taken from the channel.
 
   
If the structure has different types of mineralization separate samples are taken for each type.
 
   
The distance between channels is 4 meters in stopes, 2 meters in horizontal exploration development and 1 meter in vertical development.
 
   
All samples collected are placed in clean plastic bags together with a sample tag.
 
   
After taking the sample vein thickness and the widths of the drifts are measured and filled into the sample card together with the location information.
 
   
Assay results are sent by e-mail to the geology department and mine engineering department for verification and planning. Results are entered into the Century LIMS database by the lab and a hard copy is filed by the geology department.
         
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14.2.3 Numbering System
DRILL-HOLE ID
Drill-hole IDs formatted as follows:
(GRAPH)
SAMPLE NUMBERS
All channel samples, standard samples, and blanks are labeled with a sequential 5-digit number.
         
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15. Sample Preparation, Analysis and Security
PASH retained SGS Laboratory, Lima during 2007 for a 5 year contract to run the on-site laboratory as a third party contractor. SGS laboratory in Lima is accredited for ISO 17025 and they apply the same quality standards in the Huaron laboratory. All sample preparation and analysis is executed by SGS employees. Two PASH laboratory specialists work in the laboratory supervising and controlling functions.
Underground channel samples are transferred from the plastic bags into a metal tray and dried in an oven for 1.5 hours. After crushing, the samples are split to a size of 200-250 grams. Samples are pulverized using a concentric-ring mill for approximately 1 minute 15 seconds and then homogenized. The pulp is transferred into a bar-coded envelop for later analysis.
The Huaron laboratory uses acid digestion and atomic absorption (“AA”) spectroscopy. The prepared samples are analysed for Ag, Zn, Pb, and Cu. During the entire procedure from sampling to analysis, sample security is controlled by PASH employees or by the certified third party laboratory.
It is PAS’ standard practice to have a primary lab on-site that performs all sample analysis and also a third party secondary lab to re-iterate analysis on at least 2% of the samples for quality assurance and quality control (QA/QC, check samples).
The primary laboratory is the on-site Laboratory in Huaron operated by SGS Lima. The laboratory conducts a routine internal QA/QC program; results of this program are available on the LIMS database. The laboratory also conducts a second QA/QC program, supervised by the geology department, which includes external check samples and the routine submission of certified standards. For each batch of twenty at least one internal duplicate and one internal standard is added by the laboratory. The responsible geologist will add one certified standard and one blank on a daily basis. Duplicate samples of diamond core come from the remaining half core split to a quarter core. For channel samples, a duplicate is obtained by collecting a sample of equal weight from the same sampling location.
PASH also contracts ALS Chemex in Lima to act as their external secondary lab to analyze the check samples by AA spectroscopy for Ag, Zn, Pb and Cu. ALS Chemex Lima fulfills the requirement of ISO 9001:2000 and reports assay results by e-mail and by certified paper copy to PASH.
The general sample preparation methodology and analysis procedures are as follows:
  1.  
Sample Check-In
 
     
Geology staff delivers samples to the sample preparation area of the assay laboratory.
 
     
Samples are delivered in plastic bags identified with a labeled tag. Each sample has an average weight between 3 and 6 kilograms and has a humidity over 7%.
 
     
Geology staff logs the codes and check-in time in the Logbook.
         
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  2.  
Sample Drying
 
     
Samples and tags set on the aluminum trays are placed in the drying oven.
 
     
After aproximately 1.3 hours, the trays are removed from the heat and are allowed to cool down.
 
  3.  
Sample Codification
 
     
Sample numbers are recorded in a logbook
 
     
Envelopes are identified with samples date and sample number as received.
 
  4.  
Mechanical Sample Preparation
 
     
Dry samples are passed through the jaw and roll crushers, split and then crushed.
 
     
Crushed samples are transferred into barcoded envelopes.
 
  5.  
Sample Weighing
 
     
Sample barcodes are read and sample weight for digestion is then determined. This information enters the database automatically via the LIMS system.
 
  6.  
Sample Digestion
 
     
Acids are added to the samples and they are transferred to a hot plate where digestion begins.
 
     
Samples are allowed to cool and are then homogenized and dissolved.
 
  7.  
Sample Tracing by Atomic Absorption
 
     
Lab assistants identifiy the number of samples and elements to be analyzed.
 
     
Quantification is performed by AA spectroscopy.
 
     
Results enter automatically the database via LIMS.
 
  8.  
REPORT OF RESULTS
 
     
The geology department receives the sample results directly from the database and imports the information into Autocad Sample maps and/or into the drill log sheets. Sample information can also be imported directly from the database into Datamine software.
The purpose of the QA/QC is to control and constantly improve the quality of the results from the laboratory performing the assays of channel samples and diamond core samples. At the beginning of 2006, PAS implemented a new QA/QC procedure that involved the submission of certified standard samples (pulp) as well as sterile blank samples. Material for standards have been collected using Huaron mill feed over a two week period and have been prepared and certified by ALS Chemex Lima, which fulfills the requirement of ISO 9001:2000 standards. The LIMS system was also deployed at the Huaron Mine to automate data entry and secure safe data storage in a database.
         
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Blank sample assay results from 2007 are shown on GRAPH 15-1 and standard samples on GRAPH 15-2. Each graph is plotted with a warning and action line, to identify outliers. These indicators are equal to plus or minus two times the standard deviation and plus or minus three times the standard deviation respectively. The values of the certified standard sample are as follows:
Table 15-1: Certified Standard Value
                                 
ELEMENT   Ag ppm     Cu %     Pb %     Zn %  
Average
    214.00       0.68       1.48       3.07  
St. Dev.
    6.1       0.01       0.04       3.07  
Standard results outside the warning lines are acceptable but further attention is then given to the quality control process. Standard results outside the action line trigger further investigations and re-analysis may be requested. Typically, if the channel samples are from stopes, they represent small tonnages and are for immediate production. Re-assaying all of the samples, in these cases, is not practical and instead the deviations are used to improve procedures.
Observations from GRAPH 15-1 and GRAPH 15-2 show several outliers that are erratic. Results are further summarized in table 15-2.
Table 15-2: Monthly Average Assay Results of Inserted Standards
2007 Montly Average Assay Results of Inserted Standards
                                                                 
    JAN     FEB     MAR     APR     MAY     JUN     JUL     YTD  
Number of Std Samples   25     23     25     28     23     25     29     178  
Avg Ag (g/t)
    211.54       215.68       212.75       213.56       213.17       211.11       214.81       213.25  
Variance (g/t)
    -2.46       1.68       -1.25       -0.44       -0.83       -2.89       0.81       -0.75  
% diff from Certified Value
    -1.15 %     0.79 %     -0.58 %     -0.21 %     -0.39 %     -1.35 %     0.38 %     -0.35 %
 
                                                               
Avg Cu (%)
    0.63       0.63       0.64       0.65       0.65       0.63       0.64       0.64  
Variance (%)
    -0.054       -0.049       -0.041       -0.035       -0.026       -0.049       -0.037       -0.041  
% diff from Certified Value
    -7.90 %     -7.16 %     -6.06 %     -5.09 %     -3.77 %     -7.24 %     -5.43 %     -6.07 %
 
                                                               
Avg Pb (%)
    1.49       1.44       1.45       1.46       1.48       1.45       1.45       1.46  
Variance (%)
    0.010       -0.036       -0.032       -0.019       0.002       -0.030       -0.030       -0.020  
% diff from Certified Value
    0.67 %     -2.44 %     -2.19 %     -1.28 %     0.15 %     -2.00 %     -2.03 %     -1.32 %
 
                                                               
Avg Zn (%)
    2.96       2.94       2.96       3.07       3.02       2.98       3.05       3.00  
Variance (%)
    -0.108       -0.133       -0.110       -0.002       -0.049       -0.091       -0.017       -0.070  
% diff from Certified Value
    -3.53 %     -4.33 %     -3.60 %     -0.07 %     -1.59 %     -2.97 %     -0.54 %     -2.28 %
General notes about table 15-2.
 
Absolute values of the “% difference from the certified value” that are greater than 5%, represent values where the monthly average of the assay results are beyond the action line (greater than three standard deviations from the expected value).
 
 
In general, assays of inserted standards are undervalued with results lower than the expected certified value.
         
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As shown in Table 15-2, copper assay results have been flagged for being more than 3ó from the certified value. The authors recognize that part of the mineral resources and mineral reserves are affected by these discrepancies, but based on the long production history and the small difference between the theoretical and analyzed standard grades, it is the authors’ opinion that the effect on the overall mineral reserves and mineral resources do not impact the assessment of the economic viability of the proven and probably mineral reserves.
In the authors’ opinion, the sample preparation, security and analytical procedures are of adequate quality for resource and reserve estimation.
         
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16. Data Verification
PASH performs routine assay data verification by primary and secondary laboratory check sample analyses. In addition, the on-site Huaron Laboratory (SGS) and ALS Chemex Lima perform numerous internal standard determinations and checks. Michael Steinmann, P.Geo., reviews the results and performance of the labs on a monthly basis. ALS Chemex reports the check sample results by e-mail and by certified hard copy. Results of these two reports are compared on a monthly basis by the Huaron Mine geology department.
Channel samples, generally 2 to 3 per sample location (see chapter 14.3.1), are reviewed by the geology and mine engineering department to identify possible duplicity of spatial location or grades. Duplication of grades or sample locations (closer than 1 metre) are highlighted for easy revision. The responsible geologist compares the duplicated grades to the original data entry and omits one sample in the case of an entry error. If two samples have actually been taken in a spacing of less than 1 metre, a weighted average of the grades is used in the database.
Most of the data spatial verification is done using AutoCAD software, by plotting samples onto level plans and longitudinal sections to verify the correct location in the drifts or stopes.
Channel samples enter the database with assigned X, Y, Z coordinates and a vein code. Hence, they can easily be plotted on each vein long section. 3D sample location for the drill holes are plotted in AutoCAD software using the collar information, dip and plunge angles and drill hole depth information. Visibly wrong locations, due to erroneous data entry are corrected.
The authors’ of this Technical Report conclude that the quality of data given within this report follows industry standards and that the types and quantities of anomalies are within industry norms for databases of this size and age. They further conclude that these anomalies have no material effect on the overall mineral resource estimate.
On the basis of the statistical checks, the authors of this Technical Report believe that the exploration database has been prepared according to industry norms and is suitable for the development of geological and grade models.
         
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17. Adjacent Properties
Volcan Compania Minera S.A.A operates the adjacent Animon Mine via its subsidiary Empresa Administradora Chungar S.A.C. Information on this mine has been publicly disclosed by Volcan on their web page at the following address www. Volcan.com.pe.
The Animon Mine is located 4,600 metres above sea level in the Cerro de Pasco province some 219 kilometres from Lima via Canta. It is a mostly mechanized underground mine with 100% of the production coming via the overhand cut and fill mining method. The mine has a shaft called “Pique Esperanza” and is in the process of developing the vein systems deeper. Drilling in 2006 confirmed the existence of the Maria Rosa and Principal veins down to 4,150 metres above sea level as well as adding 2.2 million tonnes of reserves primarily in the Ramal 85, Lorena and Maria Rosa veins.
The processing plant has a capacity of 2,800 tonnes per day and produces copper, lead and zinc concentrates. Average annual treatment rates were 2,295 tpd in 2005 and 2,519 tpd in 2006. An increase in the plant capacity to 3,500 tpd is being contemplated for 2007. The plant production for the previous 3 years is as follows:
                                         
Year   Tonnes     Lead (%)     Zinc (%)     Copper (%)     Silver (opt)  
2006
    851,685       3.20       7.70       0.20       3.50  
2005
    737,080       3.42       7.89       0.29       3.18  
2004
    609,893       3.76       9.09       0.33       2.81  
The authors of this report have not verified any of the information provided above or any information provided on the Volcan Compania Minera S.A.A web page. The mineralization at the Animon Mine is not necessarily indicative of the mineralization at the Huaron mine.
The following is taken from previous Pan American Silver Corp. publicly disclosed information that the authors of this Technical Report have been able to verify. In April, 1998, a portion of the lakebed of nearby Lake Naticocha collapsed and water from the lake flowed into the Animon Mine and, through interconnected tunnels, the water entered and flooded the Huaron Mine, causing its closure.
After the April 1998 flooding, the Huaron mine operations were shut down, the labour force was terminated, the village closed and work was undertaken to clean up the flood damage, drain the workings and prepare for an eventual restart of production. The water level in the lake, which provided the source of floodwater, is maintained well below the level where it flooded into the old workings and PASH does not expect a threat of further flooding. The Animon Mine, in accordance with a settlement agreement reached with Cia. Minera Huaron S.A. in September 2000, constructed a channel to route water around the lake to provide water for the Huaron Mine’s operation and to reduce the water in upstream lakes to prevent agricultural flooding, which had created local social pressures. The opening where the water flooded in to the Animon Mine is visible from surface, and during visits to the Huaron Mine, the authors of this Technical Report have confirmed visually that the water level in Lake Naticocha is being maintained below this level.
         
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18. Mineral Processing and Metallurgical Testing
Forecasts for metal recovery are based on historical performance of plant operations. Because Huaron is an operating mine with an operating mineral processing plant, metallurgical testing is conducted every day in the plant. Therefore, the forecasts of recoveries in this report are based on historical performances of the processing plant. A description of the existing mill and discussion of the historical recovery and metallurgical balances are presented in Section 25.
Metal recovery forecasts are based on processing plant results and are considered by the authors of this Technical Report to be representative. There are some veins and portions of the mine, particularly above the 500 level, where the veins have more complex metallurgy and or contain more oxidized material. This material does not respond as well to flotation as some of the other zones and lower recoveries are expected from these areas. The life of mine (“LOM”) plan, however, has been designed to manage the blend of this material to keep it similar to the current levels and so any negative impact to the overall recoveries that can be expected from the deposit are already accounted for by using the actual plant average results. Over the long term, as mining progresses deeper, the amount of primary sulphide ore in the feed will increase. The projected recoveries used for the LOM plan are based on head grades that are calculated from the mine plan, which are based on the grades defined from the mineral reserves and mineral resources of the veins planned to be mined. Although not relevant for this mine plan economic analysis, the practice is that when a new vein is intersected, samples are tested at the on-site laboratory.
The metallurgical assumptions used in the LOM plan are shown in the tables 18-1 and 18-2. The mine typically receives payment for a small amount of gold that is recovered into the concentrates that are produced and have been included in the actual cash flow that has been recorded to December 31, 2007. As the mine does not have an estimate for the gold grades in the mineral reserves and mineral resources, the recovery of gold in future years has been assumed to be zero. The authors of this Technical Report have no reason to believe that the gold revenues from the mine will suddenly stop in 2008; however, there is not enough data to accurately estimate what those gold revenues will be and so for conservatism they have been assumed to be zero.
The relationship between the silver head grade and the metallurgical recovery of silver since 2001 is shown in the following graph. Silver recovery is directly related to the silver head grade as well as copper and lead grades. The long term silver recovery in the life of mine plan is 80%.
         
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(GRAPH)
The graph of copper recovery versus head grade displays improving recovery despite an overall declining head grade. Copper recoveries in the life of mine plan are forecast to vary between 55% and 61% depending on the head grade:
(GRAPH)
The head grade for lead dropped dramatically over the course of the last 3 years, impacting the recovery which dropped below 75% with a head grade of 1.24%. Lead grades are forecast to return to higher levels of 1.8% in 2008 although the longer term outlook is for the grades to be 1.5% and recovery 74% (this is the same recovery as currently being achieved with a lower head grade).
         
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(GRAPH)
The zinc head grade has been receding since 2002 and this has reduced zinc recovery and zinc concentrate grades. The increased throughput is partly responsible for the decline in the zinc metallurgy and PASH plans to install 8 reconditioned flotation cells in early 2008. These cells will replace the current third stage bulk cleaner and be used as first cleaners for lead-copper separation. The long term projection is for zinc grade to increase to 3.3% at a recovery of 67% with a concentrate grade of 47%.
         
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(GRAPH)
(GRAPH)
         
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Table 18-1: Life of Mine Head Grade Projections
                                         
Head Grade   Ag (g/t)     Cu (%)     Pb (%)     Zn (%)     Au (g/t)  
2007
    194.93       0.36       1.21       2.55       0.40  
2008
    188.01       0.39       1.78       3.25       0.28  
2009
    187.69       0.40       1.81       3.29       0.00  
2010
    187.23       0.40       1.85       3.29       0.00  
2011
    186.76       0.40       1.90       3.30       0.00  
2012
    177.54       0.42       1.92       3.36       0.00  
2013
    177.80       0.24       1.54       3.27       0.00  
2014
    178.06       0.29       1.53       3.30       0.00  
2015
    178.19       0.35       1.51       3.33       0.00  
2016
    178.32       0.37       1.50       3.35       0.00  
2017
    178.51       0.40       1.49       3.36       0.00  
2018
    187.74       0.44       1.48       3.38       0.00  
Table 18-2: Life of Mine Recovery Projections
                                         
Recovery   Ag (%)     Cu (%)     Pb (%)     Zn (%)     Au (%)  
2007
    80.31       59.08       73.55       63.44       30.54  
2008
    79.81       60.10       74.89       66.24       0.00  
2009
    80.00       60.00       75.00       67.00       0.00  
2010
    80.00       60.00       76.00       67.00       0.00  
2011
    80.00       60.00       77.00       67.00       0.00  
2012
    80.00       60.00       77.00       67.00       0.00  
2013
    80.00       55.00       74.00       67.00       0.00  
2014
    80.00       57.00       74.00       67.00       0.00  
2015
    80.00       59.00       74.00       67.00       0.00  
2016
    80.00       59.00       74.00       67.00       0.00  
2017
    80.00       60.00       74.00       67.00       0.00  
2018
    80.00       61.00       74.00       67.00       0.00  
         
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Table 18-3: Life of Mine Concentrate Projections
                                                                                 
    Copper Concentrate     Lead Concentrate     Zinc Concentrate  
    Tonnes     Ag (g/t)     Cu (%)     Zn (%)     Tonnes     Ag (g/t)     Pb (%)     Tonnes     Ag (g/t)     Zn (%)  
2007
    6,588       10,012       24.42       9.60       16,023       2,320       42.01       27,234       561       44.93  
2008
    7,486       7,775       24.77       12.80       23,842       1,721       43.66       37,111       494       45.45  
2009
    7,517       7,505       25.00       12.80       23,610       1,842       45.00       36,659       481       47.00  
2010
    7,500       7,510       25.00       12.80       24,404       1,779       45.00       36,677       480       47.00  
2011
    7,581       7,417       25.00       12.80       25,372       1,708       45.00       36,816       477       47.00  
2012
    7,825       7,188       25.00       12.80       25,820       1,679       45.00       37,595       468       47.00  
2013
    4,083       13,108       25.00       12.80       19,920       2,071       45.00       36,557       457       47.00  
2014
    5,222       10,264       25.00       8.10       19,694       2,098       45.00       36,908       454       47.00  
2015
    6,430       8,347       25.00       8.10       19,469       2,125       45.00       37,259       450       47.00  
2016
    6,943       7,737       25.00       8.10       19,356       2,139       45.00       37,434       448       47.00  
2017
    7,582       7,090       25.00       8.10       19,243       2,153       45.00       37,610       447       47.00  
2018
    6,657       6,346       25.00       8.10       14,979       2,174       45.00       29,728       444       47.00  
As there is distinct zonation of the mineralogy at the Huaron mine, the mineralogy of the principal veins on the production plan has been taken into account in order to arrive at the metallurgical assumptions shown above in Table 18-1, Table 18-2, and Table 18-3. The principal veins that are considered within this forecasted production plan are described in section 11.2.
18.1 Plant Improvement Projects
A value chain (see Figure 18-1), has been prepared for the plant aiming at identifying processing strengths and weaknesses and finding opportunities for improvement. With this basis, research work and reconfiguration of the entire milling process has been prioritized with the goal of creating economic and environmental value.
18.1.1 Grinding Circuit
Recent changes made to the grinding circuit include putting an 8’ x 8’ and an 8’ x 3’ ball mill into operation as secondary ball mills and increasing the motor of the 8” x 20” pump to 100 horsepower. These changes were necessary to achieve a processing throughput of 2,300 tpd at the required particle size of 60% passing 200 mesh.
18.1.2 Flotation Circuit
The copper concentrate is subject to smelter penalties as it currently contains some 7.1% arsenic 8.7% lead and 13% zinc. There is a study underway to determine if the arsenic is in free arsenopyrite and if the arsenic content of the copper concentrate can be reduced. The activation of zinc by copper ions from secondary copper minerals released during grinding cause zinc to float in the bulk flotation circuit when processing ores with complex mineralogy. The circuit has been reconfigured by sending the primary cleaner tails directly to the zinc circuit; this has improved and controlled the situation. If an absolute solution could be found then it would add significant value to the operation. The reconfiguration is summarized in Figure 18-2.
         
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Reconfiguration of the copper and lead separation circuit was done to increase the float time through the inclusion of additional float tanks and dosifying pumps. The result is a more consistent and stable process. Changes are shown in Figure 18-3.
In the zinc circuit, there is 5% to 6% manganese in the feed, and the manganese floats in the same manner as zinc resulting in lower concentrate quality. Mineralogical studies revealed fine zinc is inside the manganese carbonates, which explains the 0.5% to 0.7% zinc in the tails when these are present. Reconfiguration of the zinc circuit is in progress, as shown in Figure 18-4.
18.1.3 Authors’ Comments
Many years of production history, including actual results from processing in the mill, mean that the metallurgy to be expected from the deposit is very well-know and established.
In the authors’ opinion, there is sufficient information to predict the metallurgy to be expected in the life of mine plan to a reasonable degree of accuracy.
Metallurgical testing may be undertaken to review the metallurgy of any new veins if they are discovered. Other metallurgical testing may be undertaken from time to time to explore ideas for improvement or the application of new technology as it becomes available. This type of testing would only lead to improvements over the life of mine economic case as it is presented in this Technical Report.
Martin Wafforn, P.Eng, has reviewed the metallurgical assumptions used in the economic analysis and compared them to the historic performance of the Huaron mill. In addition, the metallurgical assumptions in the plan have been reviewed by the Pan American Silver Peru S.A.C., a subsidiary of PAS, corporate metallurgist, Edgar Canta, who is not a Qualified Person but is considered to be an expert on flotation metallurgy. Mr. Canta has presented papers on flotation metallurgy internationally and has written a detailed report on the Huaron plant entitled “Memoria Desctiptiva del Proceso Metalurgico en Planta Concentradora Huaron” dated September, 2007 that contains the basis for the processing and metallurgical information presented in this section 18 and section 25. In the opinion of the authors, this is further confirmation that the metallurgical assumptions used are reasonable.
         
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19. Mineral Resource and Mineral Reserve Estimates
The PASH geology department uses AutoCad, Microsoft Excel, and Microsoft Access to tabulate mineral reserves and mineral resource estimates on an annual basis. For each estimated vein, there is a long section of mineralization oriented along strike of the vein, perpendicular to the X-Y plane. The geology and mine engineering department examine the section and layout a geo-block system based on mining levels, stope layout and mined out areas. The geo-block system is a configuration of geometric blocks created to best fit an area of mineralization into a physically minable block if deemed economic. Block sizes vary, but are generally 50mx20m (strike x dip). These blocks are updated on a regular basis as ore extraction advances.
All quoted mineral resources and mineral reserves are estimated in accordance with accepted industry practices, are in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum definitions on Mineral Resources and Mineral Reserves, and are in compliance with NI 43-101.
Inventory estimates are calculated using the traditional polygonal method. Each structure is projected and plotted out onto a longitudinal section. Channel sample locations as well as mine workings are plotted onto these sections. Variogram analysis on 3 mayor structures (Alianza, Tapada, Cometa) showed variable grade continuity along strike and dip. Based on the available data a mineral resource block size down dip of 20 metres has been assumed for new blocks of the three analyzed structures. Historical block size will be maintained for all other structures until further variogram analysis are available. Silver and Zinc were considered to be the main variables in determining the maximum block dimensions. The block length was determined by the homogeneity of available sample results and not on the variogram results. All measured mineral resource blocks contain detailed channel sampling, hence variable grade distribution will be recognized by the sampling. The block width is a function of the weighted average of the vein channel samples and trigonometrically corrected for true width. A summary of the variogram parameters are listed below in Table 19-1, variogram plots are include as Figure 19-1A to Figure 19-1C.
Table 19-1: Variogram Parameters
                     
        Variogram   Measured   Indicated   Inferred
        Range   Resource   Resource   Resource
Vein   Variable   (Strike x dip)   (Strike x dip)   (Strike x dip)   (Strike x dip)
ALIANZA
  Silver   15m x 20m   15m x 20m   30m x 40m   37.5m x 50m
ALIANZA
  Zinc   15m x12m            
TAPADA
  Silver   25m x 35m   25m x 30m   50m x 60m   62.5m x 75m
TAPADA
  Zinc   32m x 40m            
COMETA
  Silver   30m x 25m   30m x 25m   60m x 50m   75m x 62.5m
COMETA
  Zinc   25m x 20m            
PAS is working on the implementation of Datamine Software and geo-statistical techniques to estimate the mineral resources and mineral reserves at the Huaron property.
         
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19.1 Specific Gravity
A total of 89 samples were collected from different veins in the Huaron property for specific gravity (“SG”) analysis. The work was executed by CIMM Peru, a certified geochemical laboratory in Lima. CIMM Peru is an ISO 9001:2000-registered laboratory for geochemical and metallurgical sample analysis and has an ISO 17025 certification for environmental sample analysis. The results of the SG analysis are indicated in Table 19-2. The Patrick, San Narciso and Fastidiosa veins showed slightly different results in the analysis and the values shown in Table 19-2 are used for those veins. For all other veins an SG of 3.32 tonnes per cubic meter (“t/m3”) was assumed. Waste rock was assigned an SG of 2.70 t/m3. The geology department is constantly analyzing additional samples in order to continue to adapt the SG estimate in the mineral resources to changing information as mining progresses.
Table 19-2: Applied specific gravity used for different veins at Huaron
                 
Vein
  SG Waste     SG Ore  
Patrick
    2.70       3.58  
San Narciso
    2.70       3.30  
 Fastidiosa
    2.70       3.20  
   All other veins
    2.70       3.32  
19.2 Erratic Values
High erratic values are corrected before a mineral reserve block is estimated. Sample grades are first multiplied by the respective vein width. In order to determine if a value is erratic, these products are compared to the average products of a block. If the result (grade x vein width) for a certain sample is larger than 1.5 times, the average product of the block, the sample is considered to be erratic and the sample grade is replaced by the average grade of the block.
19.3 Criteria for Resource definition
Following CIM standards, a measured mineral resource must have enough information about quantity, grade or quality, densities, shape, and physical characteristics that they can be estimated with confidence sufficient to allow the appropriate application of technical and economic parameters, to support production planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, spaced closely enough to confirm both geological and grade continuity. All measured blocks at the Huaron Mine are sampled on at least one long block side with 2 to 4 metre spaced channel samples. For operational reasons the blocks are not longer than 70 metres and not shorter than 20 metres.
Indicated blocks have the same dimensions as measured blocks, but form the vertical continuation of the measured mineral resources. They contain sufficient geological information from diamond drill holes and sample grade interpolations to allow the appropriate application of technical and economic parameters, to support mine planning and evaluation of the economic viability of the deposit.
         
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Inferred blocks have the same size as Indicated blocks but form the vertical continuation of the Indicated mineral resources. They contain limited diamond drill holes and have reasonably assumed, but not verified, geological and grade continuity.
For the end of 2006 mineral resource calculation, dilution was added utilizing an empirical formula similar to that proposed by T. Alan O’Hara. The formula takes into account the vein width and dip angle when calculating the dilution percentage. The calculated amount of dilution decreases as a percentage as the dip and or the vein width increase. This is consistent with PAS experience in other mines in Peru in similar mining and ground conditions. The formulas used for calculating dilution are as follows:
(EQUATION)
Following the calculation of the diluted tonnes and grade in each block, economic parameters were applied to the measured and indicated mineral resources to calculate the proven and probable mineral reserves. The measured and indicated mineral resources remaining are that portion of the overall mineral resource that have the necessary data density and geologic confidence to be assigned to those mineral resource categories but require improvements in the economic conditions or assumptions in order to convert to mineral reserves.
The first economic parameter applied was a Net Smelter Return (“NSR”) value per tonne. This was calculated for each block by applying metal prices and using the existing and projected smelter terms to derive NSR or Value per Tonne (“VPT”) factors. The concentrates are sold under a contract with Doe Run Peru S.A.C (Ag, Pb concentrates), Cousorcio Thieo S.A. (Pb concentrate), Glencore International (Pb, Zn concentrates) and Volorantin Metais Cajamarquilla S.A.C. (Zn concentrate). The factors and metal prices calculated are shown in Table 19-3.
         
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Table 19-3: Resource Metal Price and Factors
                                 
Metal Price and Factors Used to Calculate VPT  
    Ag     Cu     Pb     Zn  
Metal Price   $9.00/ounce     $5,000/tonne     $1,000/tonne     $2,100/tonne  
STRUCTURE   KAg     KCu     KPb     KZn  
TAPADA
    0.2200       15.5264       0.9437       4.7591  
YADIRA
    0.2127       15.2702       2.9868       5.1606  
R. FASTIDIOSA
    0.2164       7.0290       1.9983       4.8127  
FASTIDIOSA
    0.2183       19.5906       0.9552       5.4377  
YANACRESTON
    0.2074       15.4130       2.5873       6.6831  
LABOR
    0.2310       9.2339       4.1835       6.2120  
SAN FRANCISCO
    0.1782       5.4223       3.6151       7.3857  
CUATRO
    0.2314       14.7650       3.4712       5.9040  
SAN NARCISO
    0.2336       21.9188       1.4915       6.7057  
ALIANZA
    0.1738       4.7643       0.2446       4.6633  
ROSARIO
    0.2356       16.8475       3.8858       2.5940  
LUCERO
    0.2189       6.1666       4.0146       6.8279  
VETA 81
    0.2437       21.9970       3.6469       7.8356  
SORPRESA
    0.2119       16.7993       -1.5441       5.2058  
ANITA
    0.2191       2.4161       3.5637       7.7117  
DANITZA
    0.2196       6.1661       3.5357       6.6455  
AVERAGE
    0.2153       13.9994       2.6006       6.2384  
The second economic parameter was applied in the overall mine plan by considering the economic merits of each zone to ensure that small isolated blocks that do not justify development are not included in the proven and probable mineral reserves.
The third economic parameter applied was the calculation of a cut off VPT. In consideration of the estimated operating costs and metallurgical recoveries, a cut off VPT was applied for each zone in the mine based on mining costs and metallurgical recoveries. The cut offs are given in table 19-4 below.
Table 19-4: Reserve Cut Off Values
                                                                 
Cut Off for Reserve/Resource Statements Dec. 31, 2006  
                            Norte     Norte     Norte              
            Avg.     Norte     500     600     700     Sur     Satelite  
Break Even (Economical)
  Proven     46.00       48.00       42.00       45.00       45.00       48.00       47.00  
Break Even (Economical)
  Probable     46.00       48.00       42.00       45.00       45.00       48.00       47.00  
 
                                                               
Incremental Ore (Marginal)
  Proven     32.00       34.00       28.00       31.00       31.00       34.00       34.00  
Incremental Ore (Marginal)
  Probable     32.00       34.00       28.00       31.00       31.00       34.00       34.00  
The plant has some excess capacity, hence an incremental cut off was applied to ore which covers all variable on site costs.
         
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All measured mineral resource blocks which, after the application of the mining parameters, have a VPT higher than respective cut off, were converted to proven mineral reserves. Similarly, all indicated mineral resource blocks that met the requirements above were converted to probable mineral reserves. As all mineral resources are potentially economic, all remaining measured and indicated mineral resource blocks as well as any inferred mineral resource blocks with a VPT of less than $25 per tonne were eliminated from the mineral resource summary.
There are no other known issues relating to environmental, permitting, legal, title, taxation, socio-economic, marketing, political, metallurgical, infrastructure, or other relevant factors that would materially affect the reported mineral resource and mineral reserve estimates reported in this Technical Report.
19.3.1.1 Mineral Reserves
The Company’s management estimates proven and probable mineral reserves at the Huaron Mine, as at December 31, 2006 are as follows:
Huaron Mineral Reserves
                                                 
Reserve           Silver     Ag Content                    
Category   Tonnes     (g/t)     (ounces)     % Copper     % Lead     % Zinc  
  Proven
    4,638,300       184       27,438,944       0.31       1.57       3.16  
Probable
    4,048,556       183       23,820,012       0.21       1.79       3.21  
  Total
    8,686,856       184       51,258,956       0.26       1.67       3.18  
Notes:
   
Calculated using a price of $9.00 per ounce of silver, $2,100 per tonne of zinc, $1,000 per tonne of lead and $5,000 per tonne of copper.
 
   
Estimates of mineral reserves are calculated on the basis of blocks exposed by underground workings on one or more sides and having an in-place diluted value equal to or above the cutoff grade ($27/tonne). Proven and probable mineral reserves are extrapolated between 15 and 30 metres down dip depending on vein continuity.
 
   
Mineral reserve estimates for Huaron were prepared under the supervision of, or were reviewed by, Michael Steinmann, P.Geo., Senior Vice President Geology & Exploration, and Martin G. Wafforn, P.Eng., Vice-President of Mine Engineering, as Qualified Persons as that term is defined in National Instrument 43-101-Standards of Disclosure for Mineral Projects (“NI 43-101”).
The Huaron mine has proven and probable mineral reserves, which indicate a projected mine life of at least ten years at current production rates.
19.3.1.2 Mineral Resources
The Company’s management estimates that mineral resources at the Huaron mine, as of December 31, 2006, are as follows:
         
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Huaron Mineral Resources
                                                 
Resource           Silver     Ag Content                    
Category   Tonnes     (g/t)     (ounces)     % Copper     % Lead     % Zinc  
Measured
    1,581,966       166       8,442,984       0.45       2.02       3.68  
Indicated
    1,168,964       174       6,539,448       0.55       1.86       3.83  
Total M&I
    2,750,930       169       14,982,433       0.49       1.95       3.74  
Inferred
    3,457,751       182       20,232,793       0.30       1.69       3.03  
Notes:
   
These resources are in addition to mineral reserves. Calculated using a price of $9.00 per ounce of silver, $2,100 per tonne of zinc, $1,000 per tonne of lead and $5,000 per tonne of copper.
 
   
Mineral resource estimates for Huaron were prepared under the supervision of, or were reviewed by, Michael Steinmann, P.Geo., Senior Vice President Geology & Exploration, and Martin G. Wafforn, P.Eng., Vice-President of Mine Engineering, as Qualified Persons as that term is defined in NI 43-101.
Mineral resources that did not prove to be economic are not included in the economic analyses.
         
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20. Other Relevant Data and Information
No other data or information is relevant to the review of the Huaron property.
         
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21. Interpretation and Conclusions
Mr. Martin Wafforn, P. Eng., Vice President of Mine Engineering of PAS, and Dr. Michael Steinmann, P. Geo., Senior Vice President of Exploration and Geology of PAS, both QP’s, reviewed pertinent data from the Huaron property regarding exploration data and methods, mineral resource and mineral reserve estimates, metallurgy, and process performance. They determined that PAS’ estimates of mineral resources and mineral reserves for the Huaron property as of December 31, 2006 are in accordance with Canadian National Instrument 43-101, and as set forth in the CIM Standards on Mineral Resources and Mineral Reserves, Definitions and Guidelines. The authors generally conclude:
The geology and mineralization of deposits on the Huaron property are well understood. Current geological models are conservative in approach for estimating reserves and resources and have been developed in a professional manner.
Exploration drilling, sampling, sample preparation, assaying, density measurements and drill-hole surveys have been carried out in accordance with industry standard practices and are suitable to support resource estimates.
Exploration and drilling programs are well-planned and executed and supply sufficient information for mineral resource estimates and mineral resource classification.
Sampling and assaying includes a QA/QC program, supervised by the geology department that includes external check samples and the routine submission of standards. The implementation of inserted standards and blanks has identified potential sample analysis quality, in particular the reported zinc content. Corrective action has been taken to improve the quality of assays. Results have been positive but continued improvements are necessary to keep inserted standard and blanks within 5% of the certified value.
The Huaron deposit mineral resource model was developed using industry accepted methods. The QP’s validated the mineral resource estimate and found it to be acceptable in both tonnage and grade. However the advantages of using modern geostatistics have been recognized for the purposes of mineral reserves and mineral resource estimation and mine planning. Further variogram analysis and specific gravity tests for individual mineralized structure are in progress.
Mine designs have been developed using industry standard practices and appropriate design criteria. Proven and probable mineral reserves were developed from measured and indicated mineral resources with appropriate application of cost and design criteria.
The metallurgical process has been historically proven and the existing plant has been well maintained. Additional reconfigures have improved metallic recovery and concentrate quality.
         
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Mineral resources are classified as measured, indicated and inferred mineral resources. Mineral resource classification criteria are appropriate in terms of the confidence in grade estimates and geological continuity and meet the requirements of National Instrument 43-101 and CIM Definition Standards on Mineral Resources and Mineral Reserves (2005). The majority of the proven and probable mineral reserves are found in wider veins (>º1.5 m) available to semi-mechanical mining methods, which allow for more productive mining and reduced operating costs. Additional categorization shows that a majority of the proven and probable mineral reserves are currently defined within Mineral Zone 1, which contains silver, lead, and zinc associated with pyrite. In general, this zone contains lower copper grades and higher zinc and lead grades.
The economic analysis calculates a Net Present Value of $70.2M at a 10% discount rate and $53M at a 15% discount rate. The undiscounted after tax cash flow is $137M. The Huaron Mine unit average operating costs are $51.21 from 2008 to 2018.
The LOM plan presented in this Technical Report is based on proven and probable mineral reserves and measured and indicated mineral resources. The LOM plan extends until 2018.
         
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22. Recommendations
The authors of this Technical Report recommend the continued development and execution of the mine plan.
The capital expenditures included in the economic analysis are required to enable the execution of the mine plan.
Items critical to the continuation of mining include:
   
Acquisition of additional surface rights for the future expansion of Presa #5 tailings impoundment.
 
   
Approval of the “Acquisition and Use of Explosive Permit”, which will allow the use of ANFO on-site and subsequently reduce blasting costs.
 
   
Approval of the “Domestic Landfill Permit”.
 
   
Continued improvement of water quality released back into the environment.
         
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23. References
Report entitled “Memoria Descriptiva Del Proceso Metalurgico En Planta Concentradora Huarón” dated September 2007 by Edgar Canta, PAS Peru Corporate metallurgist.
Report entitled “Inventario de Reservas Minerales y de Recursos Minerals” dated September 2007 by Micheal Steinmann, PAS Senior VP.
Report entitled “Sample Procedures, Quality Assurance and Quality Control(QA/QC) for sampling” dated February 2005 by Micheal Steinmann, PAS Senior VP.
Report entitled “Mining Sample Collectors Manual” dated February 2005 by R. Olazabal T.
Report entitled “Pan American Silver Corp — Annual Information Form for the Year 2006”, dated March 21, 2007.
         
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24. Additional Requirements for Technical Reports on Development Properties and Production Properties
24.1 Mining
PAS completed the Huron LOM plan. Martin Wafforn, P.Eng., who is a co-author of this Technical Report has reviewed and determined in his professional judgment that the mine plan discussed in this Section 25 is sound and that this mine plan is to be adopted. The plan is based on providing 2,150 tpd of ore to the mill. This LOM plan does not include any inferred mineral resources.
24.1.1 Mine Layout
The mine from a planning and operations perspective is laid out into eight geographical octants. On plan the mine is divided in four quadrants by the Travieso (E-W) and Constancia (N-S) veins as the axes. In addition the mine is split vertically at the 500 level into the area above and the area below. The naming convention for mine levels are in descending order, i.e. Level 500 is at the 4500 metre elevation and Level 250 is between 4250 and 4235 metre elevation.
The main mine access is via a four metre by four metre ramp which starts above the 500 level and extends to below the 250 level where a deepening project is in progress. Two other tunnels, Trapiche Tunnel and Paul Nevejans Tunnel, on Level 420 and Level 250 respectively provide additional access to the mine. All mine water is collected on the 250 level and drained down the Paul Nevejans Tunnel to the treatment ponds.
There are three de-commissioned shafts on the property that have not been operated since the late 1980’s. A thorough analysis of the cost to refurbish shaft D has been completed and it is assumed in this report that the shaft will be refurbished and deepened to the 180 level. The capital cost of this work and the anticipated ore handling cost savings are included in the economic analysis.
Figure 25-1 is a representative longitudinal section, illustrating the above mentioned infrastructure.
In 2006, the mine started the development of a new conveyor way ramp from the current bottom of the mine (250 level) to the 180 level in the north zone. This work will deepen the north zone of the mine by 70 metres and provide access to known vein extensions that have not been previously mined.
24.1.2 Mining Method
In 2006, stopes from 32 different veins (averaging 2.38 metres wide) were mined with approximately 77 stopes active at any time. During 2006, the mine mechanized some of the stopes by introducing small scoop trams. This had the effect of increasing productivity, and by the end of the year only 35 stopes were required to maintain production. The mining method is 100% overhand cut-and-fill using mill tailings as the backfill material.
         
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Figure 25-2A and Figure 25-2B illustrate the general cut-and-fill seqeunce with a slusher and scoop tram respectively. Cut lengths when using slusher are typically 30-40 m and 40-70 m when utilizing scoop trams.
DRILLING AND BLASTING
Drilling is performed with jackleg and jumbo electro-hydraulic drills, drilling over head, 1.2 m cuts. The blasts are done with emulsion, gel dynamite explosives, and in some areas of the mine PASH is permitted to use ANFO.
MUCKING
In general veins that are less than 1.8 m thick are mined with 15-30 hp slushers utilizing 25 to 36 inch buckets. For veins exceeding 1.8 m it is advantageous to muck with LHD sccop-trams of 1.25, 2.5 or 3.5 cubic year capacity.
TRANSPORT
Ore is hauled from the lower levels by 20 tonne haul trucks to the 500 level, where electric locomotives transport ore to the surface.
Rehabilitation of the 500 level was completed in April 2005 in order to change the ore haulage system from commercial 12 m3 capacity trucks to electric locomotives for the ore transport from 500 level to surface. This will continue to result in savings in operating costs, and provide access to new zones with ore reserves.
During 2006, the mine started the development of a new conveyorway ramp from the current bottom of the mine (250 level) to the 180 level in the north zone. This work will deepen the north zone of the mine by 70 metres and provide access to known vein extensions that have not been previously mined.
BACKFILL
The mine uses hydraulic tailings from the plant and waste rock from the development headings as backfill.
During 2007 the mine added a small crushing and grinding circuit to provide an additional 6,000 cubic meters per month of ground waste rock to augment the coarse portion of the mill tailings used for hydraulic backfill underground.
24.2 Processing
In 2006, the concentrator plant processed 693,285 tonnes of ore. Processing is expected to be in the range of 780,000 tonnes per year throughout the LOM plan. The actual capacity of the mill is higher than this, in the order of 840,000 tonnes per year. In the opinion of Martin Wafforn, P.Eng., the mill is capable of processing the production forecast in the LOM plan.
         
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The Huaron Mine operates a mill using froth induced flotation technology to produce silver in copper, lead, and zinc concentrates. The mill flowsheet consists of three-stage-crushing, ball mill grinding and selective flotation of the ore to concentrates, followed by thickening and filtering of the concentrates.
The Huaron deposit is polymetallic comprising the following main minerals:
         
  Copper minerals:   Tetrahedrite, Chalcopyrite
 
       
  Silver minerals:   Argentiferous Tetrahedrite, Freibergite
 
       
  Lead mineral:   Galena
 
       
  Zinc minerals:   Sphalerite, Marmatite
 
       
  Gangue minerals:   Pyrite, Rhodocrosite, Quartz, Roderite
The mills flow sheet is shown in Figure 25-3A and a list of the components are provided in Figure 25-3B.
24.2.1 Crushing
The crushing plant has a single coarse ore bin with a 30 cubic metre capacity. Ore is fed via a feeder from the storage bin onto a by conveyor belt. From there, the ore travels over a sequence of conveyor belts to a 4 ft by 8 ft vibrating grizzly. The oversize from the grizzly is then crushed in a 24 inch by 36 inch jaw crusher. The combined ore stream is then transported to the secondary crusher circuit via multiple conveyors. The ore travels to a vibrating screen with rectangular openings of 2 1/2 inches with the reject from this screen going to a 4 1/4 ft Symons cone crusher. The undersize travels to another vibrating screen, with openings of 3/4” x 2 1/2”, which feeds a 4 1/2 ft Symons short head cone crusher. The final product is crushed to a size of 100% — 3/4” and is stored within fine ore bins prior to entering the grinding circuit.
24.2.2 Grinding and Classification
The crushed ore is stored in six fine ore bins each with a capacity of 350 tonnes. The grinding circuit consists of a 12 ft diameter by 16 ft long primary ball mill operating in a closed circuit with one of an 8 ft diameter by 8 ft long secondary ball mill or an 8 ft diameter by 3 ft long secondary ball mill. The grinding circuit uses a D-20 hydrocyclone for classification. Final product from this circuit is 10% plus 65 mesh and 60% minus 200 mesh (with the remaining 30% between 65 and 200 mesh).
24.2.3 Flotation
The pulp from the grinding circuit is fed to the flotation cells at a density of 1,310 to 1,340 grams per liter. Bulk flotation to produce a copper / lead concentrate is followed by copper and then zinc separation.
Bulk flotation occurs in 3 stages: roughing, cleaning and scavenging. The pulp from the mill enters the OK8 primary rougher cell followed by an OK8 secondary rougher cell. The froth from the first rougher is sent to the copper separation circuit and the froth from the second rougher is sent to cleaning in 8 — DR24 cells and 2 DR-18 cells producing the bulk concentrate for lead / copper separation. The tailings from the DR24/DR18 cells go to a scavenger and the froth is returned to the first cleaner — the tails are pumped to the zinc separation circuit.
         
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The Copper / lead concentrate is gathered in a 8 ft by 8 ft separating conditioner where activated carbon and sodium bicromate are added to activate the copper. Separation is done in 2 — Denver SubA100 cells and 4 — Denver SubA50 cells where the copper is floated. The floated copper goes to a series of cleaning and scavenging cells. The copper concentrate obtained typically grades 22% to 25% copper. The tailings from the copper scavenger is the lead concentrate which typically grades 45% to 50% lead.
The tailings from the bulk concentrate become the feed for the zinc flotation circuit. First, the pulp goes to 3 — 10 ft diameter by 10 ft high conditioning cells. After conditioning, the pulp travels to a rougher stage and the froth is sent to 3 cleaners in a conventional circuit where the zinc concentrate is produced. The tailings from the 3 rougher cells are the final tailings.
24.2.4 Filtration
The lead concentrate is thickened in a Dorr Oliver 26 ft diameter by 6 ft high thickener or an auxiliary 20 ft diameter by 8’ high Dorr Oliver thickener. In the same way, the copper concentrate is thickened in a Denver 18 foot diameter by 8 ft thickener. The zinc concentrate goes to a 28 ft diameter by 10 ft Fima thickener and excess concentrate is sent to a Dorr Oliver 24 ft diameter by 8 ft thickener.
The concentrates are stored in separate holding tanks and from there are pumped at a pulp density of 1,800 grams per litre or higher to a 1.2 metre by 1.2 metre Andritz 1500 filter press with 34 plates. The final concentrates have a moisture content of approximately 8%.
         
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24.2.5 Reagents Used in the Plant
Table 24-1: Typical Reagent Consumption Rates
                     
        Concentration     Consumption  
    Reagent   cc/min     g/tonne  
Bulk Flotation
  ZnSO4     6.53       198.384  
 
  NaCN     3       50.24  
 
  Z-11     8       7.96  
 
  Z-6     8       4.55  
 
  MIBC     100       41.95  
 
  A-208     100       5.1  
 
  MT-4064     100       3.99  
 
  R-404     100       3.42  
 
  Activated Carbon     0.5       5.14  
 
  Na2Cr2O7     2       47.85  
 
  Fosfato     2       8.1  
 
  CMC     2       17.45  
 
  Dextrine     0.75       2.14  
Zinc Flotation
  CuSO4     8       247.83  
 
  Z-11     8       8.46  
 
  Z-6     8       14.78  
 
  MIBC     100       9.11  
 
  Dextrine     0.75       2.145  
 
  MT-4064     100       2.98  
 
  Cal     60       3758.58  
Thickners
  Magnafloc 351 (Cu)     0.01       0.37  
 
  Magnafloc 351 (Pb)     0.01       0.29  
 
  Magnafloc 351 (Zn)     0.01       0.15  
24.3 Metal Recovery
The projected recoveries used in the economic analysis are shown in section 18.
Projected metallurgy in the LOM plan has been summarized as follows:
  a)  
Copper concentrates contain 24% to 25% copper depending on the head grades. Copper recoveries vary from 59% to 61%. The silver grade in the copper concentrate is projected to vary from 6,300 g/t to 10,000 g/t.
 
  b)  
Lead concentrates contain 42% to 45% lead and recovers 74% of the lead contained in the feed. Silver grades in the lead concentrate are projected to be between 1,680 g/t and 2,300 g/t depending on the head grade. Overall silver recovery to the copper and lead concentrates averages 80%.
  c)  
Zinc concentrates contain 45% to 47% zinc at a recovery of 63.4% to 67.0%.
         
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24.4 Tailings Management
Tailings from the processing plant are pumped to Presa #5 impoundment via an HDPE pipeline. The slurried tailings are discharged from an area upstream of the dam alignment from the crest of the tailings dam. A tailings beach is maintained above the water level and against the upstream face of the dam to control seepage and improve stability.
The tailings dam is constructed primarily of waste rock from the mine. Since acquiring the Huaron Mine, PAS has carried out a number of improvements to the design of the ongoing raising of the tailings dam to improve stability.
The due diligence process prior to acquiring the mine identified the potential for the original starter dam and subsequent dam raises to have been constructed over tailings overlying organic, loose and wet natural soils. Subsequent drilling and testing of the soils confirmed this to be the case.
A number of changes to the dam design have been implemented, as recommended by external consultants Vector Peru S.A.C., to improve the dam stability.
 
The dam raising design was changed from the centerline method of construction to the downstream method. This change allows for the placement and compaction of a larger section of robust material to improve the internal stability of the dam embankment.
 
 
A downstream buttress was constructed along the dam alignment where the dam was identified to have been constructed over soft and wet foundation soils. The buttress improves the stability of the dam against potential failures resulting from the low shear strengths of the foundation soil units.
 
 
As mentioned above, the tailings discharge routine includes the discharge of tailings from the dam crest to form an above water beach against the face of the dam. This forces the water pond to form towards the back side of the impoundment, reduces the phreatic level in the dam embankment and improves stability.
 
 
The decant intake is currently being relocated further away from the dam crest to increase the distance between the water pond and the dam crest while still allowing water to be decanted via gravity.
 
 
An emergency spillway is constructed at the right abutment of the dam to route flows from extreme precipitation events through the impoundment while maintaining the minimum allowable freeboard to protect the dam from overtopping and/or erosion.
 
 
Diversion ditches are maintained at both sides to the tailings impoundment to minimize the amount of runoff reporting to them.
 
 
Finally, monitoring instrumentation has been installed and incorporated into the management plan for the impoundment to confirm that the dam performance is within design limits. Vibrating wire, pneumatic and standpipe piezometers have been installed to measure phreatic and pore water pressure conditions and inclinometers have been installed to measure deformations.
         
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In the final phases of Presa #5 future development will encapsulate Presa #1 to Presa #4, located directly upstream of Presa #5. There are no known stability or volume storage issues that would prevent the current dam being raised to store the projected volume of tailings in the LOM plan as presented in this report. The current dam raise, in progress in 2007, is being completed using the down stream method. An engineering firm will be retained in 2008 to consider the methods to be applied for future dam raises over the current life of mine. The cost of the study is budgeted, there is a potential for some capital cost savings if future dam raises can be done using the less expensive center line method. As the dam is raised and the surface area of the tailings deposit expands, additional lands will need to be negotiated with the local communities. These negotiations have been conducted in the past and there is no reason to believe that they won’t be successfully completed in the future. The Huaron mine is a large part of the local economy and so both parties are motivated to conclude agreements.
24.5 Environmental Considerations
The most significant environmental issues currently associated with the mine are metal-laden waters discharged from the mine, localized areas of acid rock drainage from the mine’s tailings deposit areas and the containment and stability of the active tailings ponds.
During 2004 and 2005, water quality at the compliance point has met pH standards and a majority of metal compliance standards. The closure planning process, now underway with the support of independent consultants, will define closure and mitigation options for improving water quality exiting the site.
The site water quality at Huaron has improved due to the expansion and modification of the effluent management and treatment system. Water from the tailings facility and the upper levels of the mine are now combined with the flows from the lower level of the mine. The flows are directed to a lime addition and sedimentation treatment system. Following the implementation of this change the water quality at the downstream discharge point is at levels permitted by Peruvian regulations. The sampling program is continuing to monitor the expected improvement in water quality.
24.5.1 Mine Water Drainage
The oxidation of sulphide minerals in the Huaron Mine causes some acid drainage that must be captured and treated in order to comply with the operating permits and to protect the environment. The principal sources of acid drainage are:
   
Mine flow from the 250 level
 
   
Seepage from the tailings impoundment;
 
   
Seepage and runoff from areas impacted by tailings resulting from the mine inundation in the past.
         
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The seepage and runoff from the tailings impoundment and impacted areas are collected in surface channels and directed into the 400 level mine adit. From here the flows are combined with mine water from the 400 level. The combined flow is directed through a raise bore to the 250 level. This is the main drainage level where all mine water is collected.
The combined mine drainage and acid surface flows are then directed via open channels to two sedimentation ponds where flocculent is added. The water quality of the combined flow has a neutral pH and the regulated metals levels are low enough that the sedimentation process works well to improve the quality to meet discharge limits. The main issue with the water treatment is the relatively high flows, averaging 650 litres/s. Treated water is discharged to the environment meeting MEM’s discharge requirements.
The sludge from the sedimentation ponds is stored temporarily at an adjacent impoundment and after a period of drying it is excavated and trucked to the Presa #5 tailings impoundment for permanent storage. The mine is currently looking at continuous reclaim solutions to deliver the sludge directly to the Presa #5 impoundment without temporary storage and drying. Lime addition has also been implemented at the processing plant to reduce the pH and assist with treatment.
24.5.2 Monitoring Program and Inspections
The environmental monitoring program at the Huaron Mine has been approved by MEM and includes seven water quality and two air quality monitoring locations. Of the seven water quality monitoring locations, five monitor the quality of effluents and two monitor the quality of the receiving waters. The monitoring data is reported regularly to MEM and they carry out audits generally two times per year.
24.5.3 Closure Plan
In accordance with MEM regulations a closure plan for the Huaron Mine was submitted to the MEM in August of 2006. The closure plan included a detailed estimated of cost to carry out the final closure of the mine and associated surface and underground workings. The closure plan has been submitted to MEM and is pending their review. Once reviewed and approved a financial guarantee will be payable for the final years of operation of the mine. The amount of the guarantee is adjustable based on changes to the mine plan or changes in closure cost estimates.
For the economic assessment of the Huaron Mine presented in this report PAS has also estimated an Asset Retirement Obligation (ARO) of $11.21 million. The undiscounted ARO estimate is summarized in Table 24-2.
         
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Table 24-2: Asset Retirement Obligation
                 
            Estimated Cost  
#     Area   (USD)  
  1    
Closure Plan Design/Permitting
    1,019,252  
  2    
Underground/Open Pit Mine Closure
    1,392,427  
  3    
Process Facility Demolition
    1,499,539  
  4    
Other On-site Demolition
    1,060,365  
  5    
Off-site Infrastructure Demolition/Rehabilitation
    0  
  6    
Wasterock Dump Closure/Reclamation
    296,191  
  7    
Tailings Impoundment Closure/Reclamation
    5,622,498  
  8    
Heap Leach Facility Closure/Reclamation
    0  
  9    
Other Surface Contouring/Reclamation
    0  
  10    
Water Treatment System Construction
    0  
  11    
Post Closure Water Treatment
    0  
  12    
Post Closure Monitoring
    321,500  
       
 
     
       
Total
    11,211,772  
       
 
     
The principal area of uncertainty relating to the final closure of the Huaron mine is the closure of the existing tailings impoundment, Presa #5.
24.6  
Markets and Contracts
Prices for the metals that the Huaron Mine produces have been robust for the last three years, after several years of prolonged weakness. Factors contributing to the recovery in metal prices include demand resulting from strong industrial growth in China, weakness in the US dollar and supply concerns due to under-investment in new production capacity. PAS anticipates that these factors will continue to support prices in the future and that the long-term fundamentals for metal prices are positive.
The principal products from the Huaron Mine are silver rich copper, lead, and zinc concentrates. All of these concentrates are sold under arm’s length contracts to metals trading companies or integrated mining and smelting companies. Under the terms of all of its sales contracts, Huaron Mine receives payment for an agreed percentage of the silver, copper, lead, or zinc contained in the concentrate, after deductions for smelting and refining costs.
In 2006, the revenues per type of concentrate produced at the Huaron Mine were as follows:
         
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(LOGO)   (PAN AMERICAN SILVER CORP LOGO)
Table 24-3: Concentrate Revenues 2006
                         
    Revenue             Average Sales Price  
2006   ($ Million)     Tonnes Sold     ($/Tonne)  
Copper Concentrate
    31.3       6,716       4,661  
 Lead Concentrate
    17.1       17,002       1,006  
 Zinc Concentrate
    23.2       24,975       929  
24.7 Contracts
To date, PAS has been able to secure contracts for the sale of the Huaron concentrates.
Table 24-4: List of Existing Sale Contracts
             
    Contract Sales for Huaron Mine 2008-09
        Sales   Contract Duration
    Client   (Tonnes Per Year)   (Year)
     Copper
  Concentrate
  Doe Run Peru S.A.C   7,500 to 8,500   2008
Lead Concentrate
  Doe Run Peru S.A.C   1,000 (±10%)   2008 – 2009
 
  Consorcio Minero S.A Cormin SA   7,000 (±15%)   2008 – 2009
 
  Glencore International AG   7,000   2008 – 2009
 Zinc Concentrate
  Glencore International AG   Total Production   2008
 
  Glencore International AG   60 % of Total Production   2009 – 2011
 
  Votorantim Metais Cajamarquilla S.A.   15,000 (±20%)   2009
The terms of smelting contracts are confidential as specified within each contract. However, Mr. Martin Wafforn and Dr. Michael Steinmann, authors of this Technical Report, have reviewed these terms and compared them with similar contracts signed at the other PAS operations. The authors consider these contracts to be within industry norms.
Some of the mining, mine construction projects and hauling of concentrates are done by third party contactors, as is a normal practice in Peru. The markets for mining and hauling contactors in Peru are extremely well-established and they have been and they are very competitive. The authors of this Technical Report have reviewed these contracts and considered the mining and hauling contracts at the Huaron Mine to be within industry standards. Electrical energy is purchased under long term contracts of 5 cents per kWh, which is within industry norms in Peru for companies with long term contracts.
Current electricity rates are 5 cents per kilowatt hour. There is a risk that PAS might not be able to secure a new long term electricity contract and the cost of electricity might increase to 8 cents per kilowatt hour. Current life of mine scheduling is based on 104 kilowatt hours per tonne of ore mined and if the cost is increased by 3 cents per kilowatt hour, the new schedule would be increased by approximately 3 kilowatt hours per tonne to a total of 107 kilowatt hours per tonne.
         
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(LOGO)   (PAN AMERICAN SILVER CORP LOGO)
24.8 Taxes
The following is a summary of current Peruvian fiscal rates and legislation.
24.8.1 Fiscal Depreciation Rates
The following is a summary of the annual depreciation rates for various types of assets:
   
Exploration, mine development, mine rehabilitation: 100%
 
   
Mine equipment: 20%
 
   
Vehicles: 20% · Computers: 25%
 
   
Buildings and other infrastructure: 3%
 
   
Other: 10%
24.8.2 Income Tax and Workers’ Participation
The corporate tax rate on taxable income in Peru is 30%. The workers’ participation rate is 8%. Workers’ participation is deductible from taxable income. Therefore, the effective income tax / worker’s participation rate is 35.6%
24.8.3 Value Added Taxes
The value added tax (“VAT”) rate in Peru is 19%. VAT is paid on all goods and services except for direct labour costs. Indirect labour costs (i.e. contractors and sub-contractors) are subject to VAT.
VAT is recovered through domestic sales. A 19% VAT rate is applied to all domestic sales and is applied against the VAT receivable. Companies cannot recover more VAT in any period than the amount accounted for as receivable.
24.8.4 Mining Royalties
Mining royalties are charged on revenues net of refining, smelting, transportation, and general selling charges. Mining royalties are escalated in the following way:
   
1% on the first $60 million of net revenues
 
   
2% on net revenues from $60 million to $120 million
 
   
3% on net revenues above $120 million
Mining royalties are income tax deductible.
         
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(LOGO)   (PAN AMERICA LOGO)
24.8.5 Voluntary Contributions
Voluntary contributions are paid into two separate mine funds: local and regional funds. The contributions calculations are based on after tax net income. The following are the rates on the two funds:
Local mining fund: 2% of after tax net income excluding mining royalties
Regional mining fund: 1% of after tax net income
24.9 Capital and Operating Costs
24.9.1 Capital Costs
During 2006, capital expenditures were approximately $5.2 million and consisted of:
 
equipment replacement and improvements totalling $1.8 million;
 
 
and mine development and deepening totalling $3.4 million.
Table 24-5 summarizes the capital expenditure estimate for the LOM plan. Highlights of the 2007 capital budget include:
 
$6.2 million for deepening to the 180 level and installing a conveyor belt between 180 and 250 levels, and the rehabilitating and upgrading works needed to bring D shaft back into operation;
 
And $2.3 million for providing additional backfill capacity and to raise the tailings dam
Table 24-5: Life of Mine Capital Expenditure Estimate
                                                         
LOM SUMMARY OFCAPITAL EXPENDITURES (x $1000)  
Area   Geology     Mine     Plant     Maintenance     Safety &
Enviro
    Other     Total  
2007
    1,270       6,249       2,285       1,385       270       800       12,259  
2008
    200       9,170       1,702       1,970       100       1,412       14,554  
2009
    1,000       5,280       250       1,600       150       1,300       9,580  
2010
    1,000       3,300       1,135       1,300       150       650       7,535  
2011
    1,000       2,700       250       1,800       150       420       6,320  
2012
    1,000       2,920       1,060       600       150       420       6,150  
2013
    1,000       2,920       250       600       150       420       5,340  
2014
    1,000       2,920       1,060       600       150       420       6,150  
2015
    1,000       2,920       250       600       150       420       5,340  
2016
    1,000       2,920       1,060       600       150       420       6,150  
2017
    1,000       2,920       250       600       150       420       5,340  
2018
    1,000       2,920       1,060       600       150       420       6,150  
2019
    0       1,500       250       300       50       200       2,300  
         
43-101 (PanAm)   Huaron Mine   103

 

 


 

(LOGO)   (PAN AMERICAN SILVER CORP. LOGO)
24.9.2 Operating Costs
Actual operating costs, as calculated by the Mine accounting department, are summarized in Table 24-6 for 2006.
Table 24-6: Year 2006 Budget and Acutal Operating Costs
                                 
    BUDGETED     ACTUAL     DIFF     VAR  
Tonnes Milled
    478,300       496,375       18,075       4 %
 
Net Smelter Return
                               
Zinc Concentrate
  $ 13,282,787     $ 14,313,260     $ 1,030,474       8 %
Lead Concentrate
  $ 10,845,296     $ 14,992,014     $ 4,146,718       38 %
Copper Concentrate
  $ 15,453,759     $ 22,279,241     $ 6,825,482       44 %
Unbudgeted Tenders
  $ 0     $ 0     $ 0       0 %
Mining Royalties
  $ (395,818 )   $ (502,486 )   $ (106,668 )     27 %
 
                       
Total NSR
  $ 39,186,023     $ 51,082,029     $ 11,896,006       30 %
 
                       
 
                               
Costs
                               
Mine
  $ 11,285,429     $ 11,422,817     $ (137,389 )     -1 %
Mill
  $ 1,680,688     $ 1,990,792     $ (310,104 )     -18 %
Water Treatment Plant
  $ 187,713     $ 259,463     $ (71,750 )     -38 %
Engineering
  $ 430,198     $ 380,794     $ 49,404       11 %
Geology
  $ 503,154     $ 520,667     $ (17,513 )     -3 %
Safety
  $ 500,304     $ 534,296     $ (33,992 )     -7 %
Maintenance and Services
  $ 1,690,136     $ 1,987,292     $ (297,156 )     -18 %
Electric Energy
  $ 1,940,705     $ 2,047,824     $ (107,119 )     -6 %
Camp Administration
  $ 2,255,273     $ 3,113,947     $ (858,673 )     -38 %
 
                       
Production Costs
  $ 20,473,600     $ 22,257,892     $ (1,784,292 )     -9 %
 
                       
Transaction Costs
  $ 58,420     $ 112,339     $ (53,919 )     -92 %
Mining Concessions
  $ 107,204     $ 107,260     $ (56 )     0 %
Administ,lnsurance+ Legal + PAMA
  $ 624,793     $ 449,230     $ 175,563       28 %
Management Fee Peru
  $ 741,488     $ 1,201,626     $ (460,138 )     -62 %
Management Fee Canada
  $ 144,000     $ 155,893     $ (11,893 )     -8 %
Shipping & Selling
  $ 756,935     $ 826,109     $ (69,174 )     -9 %
Ocean Freight
  $ 358,821     $ 657,054     $ (298,233 )     -83 %
 
                       
Operation’s Costs
  $ 23,265,261     $ 25,767,403     $ (2,502,142 )     -11 %
 
                       
 
                               
Production Basis Margin
  $ 15,920,762     $ 25,314,626     $ 9,393,864       59 %
 
                               
Miscellaneous Costs
  $ 320,000     $ 193,405     $ 126,595       40 %
Capital Spending
  $ 8,172,667     $ 4,590,296     $ 3,582,371       44 %
Reclamation Expenditures
  $ 200,000     $ 387,545     $ (187,545 )     -94 %
 
                       
Margin
  $ 7,228,096     $ 20,143,380     $ 12,915,285       179 %
 
                       
 
                               
NSR per tonne
  $ 81.93     $ 102.91     $ 20.98       26 %
Total Cost per tonne
  $ 48.64     $ 51.91     $ (3.27 )     -7 %
 
                       
Margin per tonne
  $ 33.29     $ 51.00     $ 17.71       53 %
 
                       
         
43-101 (PanAm)   Huaron Mine   104

 

 


 

(LOGO)   (PAN AMERICA LOGO)
The actual costs are used as a foundation of the operating cost estimate during the LOM plan. Mr. Martin Wafforn has reviewed these estimates and determined in his professional judgment that these estimates are reasonable.
The operating cost estimates exclude any consideration for inflation. The estimates were calculated using 3rd quarter 2007 US dollars and a flat Peruvian Nuevo Sol (“PEN”) to US dollar exchange rate of 3:1 for the life of the Huaron Mine. In order to reflect the cost escalations in the industry, all of the operating costs were subsequently escalated by 10%.
Operating costs are paid in Peruvian Soles.  In 2007, the Sole has strengthened against the USD and operating costs at the mine might increase if the Sole continues to strengthen.  PAS has taken into account a strong Sole for 2008 assigning a value of 3 Soles per USD.
There has been an increase in labor, contractor and material cost associated with the increase in metal price.  PAS currently assumes a 5-10% increase in cost the following year; however, current costs might increase more than the predicted rate.
The life of mine unit operating cost estimate is summarized in table 24-7.
Table 24-7: Life of Mine Operating Cost Projections
OPERATING COST ESTIMATE
                                                         
Unit Costs per Tonne   2007     2008     2009     2010     2011     2012     2013  
Mine
  $ 22.62     $ 23.31     $ 23.92     $ 23.92     $ 23.90     $ 23.83     $ 23.81  
Processing
  $ 3.37     $ 4.12     $ 4.10     $ 4.09     $ 4.09     $ 4.08     $ 4.08  
Water Treatment Plant
  $ 0.38     $ 0.44     $ 0.45     $ 0.45     $ 0.45     $ 0.45     $ 0.45  
Planning & Engineering
  $ 0.86     $ 0.99     $ 0.96     $ 0.96     $ 0.96     $ 0.96     $ 0.96  
Geology
  $ 1.01     $ 1.11     $ 1.09     $ 1.09     $ 1.09     $ 1.08     $ 1.08  
Safety & Environment
  $ 0.99     $ 1.34     $ 0.99     $ 0.99     $ 0.99     $ 0.98     $ 0.98  
Maintenance
  $ 3.41     $ 4.82     $ 4.73     $ 4.73     $ 4.73     $ 4.72     $ 4.71  
Electric System
  $ 3.90     $ 4.23     $ 4.18     $ 4.18     $ 4.17     $ 4.16     $ 4.16  
Camp Administration
  $ 4.53     $ 6.57     $ 6.40     $ 6.40     $ 6.39     $ 6.37     $ 6.37  
Inventory Variations
  $ 0.00     $ 0.00     $ 0.00     $ 0.00     $ 0.00     $ 0.00     $ 0.00  
 
                                         
Production Costs
  $ 41.05     $ 46.94     $ 46.82     $ 46.81     $ 46.78     $ 46.64     $ 46.60  
 
                                         
Transaction Costs
  $ 0.12     $ 0.22     $ 0.21     $ 0.21     $ 0.21     $ 0.21     $ 0.21  
Mining Concessions
  $ 0.21     $ 0.20     $ 0.20     $ 0.20     $ 0.20     $ 0.20     $ 0.20  
Administrative Insurance+Legal
  $ 1.25     $ 0.87     $ 0.90     $ 0.90     $ 0.90     $ 0.89     $ 0.89  
Management Fee Peru
  $ 1.48     $ 1.53     $ 1.54     $ 1.54     $ 1.53     $ 1.53     $ 1.53  
Management Fee Canada
  $ 0.29     $ 0.62     $ 0.00     $ 0.00     $ 0.00     $ 0.00     $ 0.00  
Shipping & Selling
  $ 1.53     $ 1.49     $ 1.54     $ 1.54     $ 1.53     $ 1.53     $ 1.53  
Ocean Freight
  $ 0.71     $ 1.38     $ 0.00     $ 0.00     $ 0.00     $ 0.00     $ 0.00  
 
                                         
Operation’s Costs
  $ 46.64     $ 53.27     $ 51.20     $ 51.19     $ 51.16     $ 51.01     $ 50.97  
 
                                         
         
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(LOGO)   (PAN AMERICA LOGO)
24.9.3 Economic Analysis
PAS, like many other precious metals producers, uses methods established by The Gold Institute (Production Cost Standards, Nov. 1999) to calculate costs per ounce of silver produced at mine operations. For each mine, PAS totals all direct mining costs, adds smelting and shipping costs, and adds the value of metals lost in smelting, plus royalties, production-related taxes, interest on loans and mine management/administration costs. From this total operating cost, PAS subtracts the amount received from selling the mine’s by-products (zinc, lead, copper, and gold) to get the “total cash cost per ounce” of silver produced. This calculation allows comparison of PAS’ operational efficiency at a mine relative to its performance in previous years and also allows comparison with peer companies’ operations. This cost also reflects by-product metal prices. For instance, when zinc prices are low, PAS gets lower by-product revenues from zinc. Subtracting this smaller by-product revenue from the total costs yields a higher total cash cost per ounce of silver produced. The “total production cost per ounce” of silver differs from the “total cash cost per ounce” of silver in that it includes provisions for DD&A (depreciation, depletion and amortization) and reclamation, which are non-cash items on our financial statements and the effect of all other taxes. The DD&A number is an accounting allowance for the cost to acquire, develop, construct and sustain a mining operation. The reclamation component is an accounting allowance of the estimated cost to reclaim the mine at the end of its life. The bulk of these expenditures occur at the beginning or end of a mine’s life but reflect the true total mine cost.
A summary of the economic model is shown in Table 24-8. The net present value is $21.4M at a 10% discount rate and is $17.5M at a 15% discount rate. The undiscounted after tax cash flow is $39.5M over a 12 year mine life.
         
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(LOGO)   (PAN AMERICA LOGO)
Table 24-8: Economic Model
                                                         
Year   2007     2008     2009     2010     2011     2012     2013  
Metal Price Assumptions:
                                                       
Silver Price ($ / ounce)
  $ 9.00     $ 9.00     $ 9.00     $ 9.00     $ 9.00     $ 9.00     $ 9.00  
Zinc Price ($ / tonne)
  $ 2,100.00     $ 2,100.00     $ 2,100.00     $ 2,100.00     $ 2,100.00     $ 2,100.00     $ 2,100.00  
Lead Price ($ / tonne)
  $ 1,000.00     $ 1,000.00     $ 1,000.00     $ 1,000.00     $ 1,000.00     $ 1,000.00     $ 1,000.00  
Copper Price ($ / tonne)
  $ 5,000.00     $ 5,000.00     $ 5,000.00     $ 5,000.00     $ 5,000.00     $ 5,000.00     $ 5,000.00  
Au Price — Toz
  $ 525.00     $ 525.00     $ 525.00     $ 525.00     $ 525.00     $ 525.00     $ 525.00  
 
                                                       
Production:
                                                       
Tonnes Mined
    756,375       782,605       781,440       781,560       782,065       784,381       785,000  
Silver Head Grade (g/t)
    194.93       188.01       187.69       187.23       186.76       177.54       177.80  
Copper Head Grade (%)
    0.36       0.39       0.40       0.40       0.40       0.42       0.24  
Lead Head Grade (%)
    1.21       1.78       1.81       1.85       1.90       1.92       1.54  
Zinc Head Grade (%)
    2.55       3.25       3.29       3.29       3.30       3.36       3.27  
Gold Head Grade (g/t)
    0.40       0.28       0.00       0.00       0.00       0.00       0.00  
 
                                                       
Silver Ounces Produced
    3,806,611       3,780,434       3,778,808       3,772,903       3,766,192       3,767,874       3,584,630  
Copper Tonnes Produced
    1,609       1,854       1,879       1,875       1,895       1,956       1,021  
Lead Tonnes Produced
    6,731       10,410       10,624       10,982       11,417       11,619       8,964  
Zinc Tonnes Produced
    12,236       16,867       17,230       17,238       17,304       17,670       17,182  
Gold Ounces Produced
    1,182       0       0       0       0       0       0  
 
                                                       
Cash Flow Summary (x $1000)
                                                       
Total NSR
    76,548       55,024       53,819       53,910       53,909       53,779       48,515  
Total Operating Costs
  $ (39,339 )   $ (41,666 )   $ (40,768 )   $ (40,774 )   $ (40,800 )   $ (40,921 )   $ (40,953 )
Other Costs
  $ (3,499 )   $ (495 )   $ (687 )   $ (717 )   $ (742 )   $ (364 )   $ (25 )
Royalty
  $ (765 )   $ (719 )   $ (755 )   $ (757 )   $ (757 )   $ (527 )   $ (474 )
Reclamation
  $ 0     $ 0     $ 0     $ 0     $ 0     $ 0     $ 0  
Total Depreciation
  $ (3,858 )   $ (3,991 )   $ (3,985 )   $ (3,986 )   $ (4,301 )   $ (4,706 )   $ (5,103 )
 
                                         
Huaron Pre-Tax Income
  $ 29,087     $ 8,152     $ 7,624     $ 7,676     $ 7,308     $ 7,260     $ 1,960  
 
                                                       
Taxes
  $ (8,506 )   $ (1,413 )   $ (2,131 )   $ (2,237 )   $ (2,342 )   $ (983 )   $ 0  
Taxes Deferred
  $ (1,713 )   $ 0     $ 0     $ 0     $ 0     $ 0     $ 0  
 
                                         
Net Income (Loss) after taxes
  $ 18,868     $ 6,740     $ 5,493     $ 5,440     $ 4,966     $ 6,277     $ 1,960  
 
                                                       
Add back Depreciation
  $ 3,858     $ 3,991     $ 3,985     $ 3,986     $ 4,301     $ 4,706     $ 5,103  
Tax Deferred
  $ 1,713     $ 0     $ 0     $ 0     $ 0     $ 0     $ 0  
Total Changes Working Capital
  $ 0     $ 0     $ 0     $ 0     $ 0     $ 0     $ 0  
Reclamation Provision-Expenditures
  $ (300 )   $ (500 )   $ (500 )   $ (500 )   $ (500 )   $ (500 )   $ (500 )
Capital Costs
  $ (10,967 )   $ (15,102 )   $ (7,600 )   $ (6,400 )   $ (6,800 )   $ (5,300 )   $ (5,300 )
 
                                         
Projected Cash Flows
  $ 13,172     $ (4,871 )   $ 1,378     $ 2,526     $ 1,967     $ 5,184     $ 1,262  
 
                                                       
Financial Metrics:
                                                       
Payable Silver Ounces
    3,428,514       3,348,772       3,354,561       3,349,147       3,359,562       3,342,483       3,178,129  
Cash Cost per Payable Ounce
  $ 4.81     $ 6.71     $ 4.82     $ 5.09     $ 5.72     $ 5.73     $ 4.31  
Not-Cash Cost per Ounce
  $ 1.25     $ 1.19     $ 1.16     $ 1.16     $ 1.24     $ 1.36     $ 1.51  
 
                                         
Total Cost per Payable Ounce
  $ 6.05     $ 7.91     $ 5.98     $ 6.24     $ 6.97     $ 7.09     $ 5.82  
 
                                                       
NSR per tonne
  $ 100.19     $ 69.39     $ 67.91     $ 68.01     $ 67.96     $ 67.89     $ 61.20  
Cost per tonne
  $ 52.01     $ 53.24     $ 52.17     $ 52.17     $ 52.17     $ 52.17     $ 52.17  
 
                                         
Margin
  $ 48.18     $ 16.15     $ 15.74     $ 15.84     $ 15.79     $ 15.72     $ 9.03  
 
                                         
         
43-101 (PanAm)   Huaron Mine   107

 

 


 

(LOGO)   (PAN AMERICA LOGO)
                                         
Year   2014     2015     2016     2017     2018  
Metal Price Assumptions:
                                       
Silver Price ($ / ounce)
  $ 9.00     $ 9.00     $ 9.00     $ 9.00     $ 9.00  
Zinc Price ($ / tonne)
  $ 2,100.00     $ 2,100.00     $ 2,100.00     $ 2,100.00     $ 2,100.00  
Lead Price ($ / tonne)
  $ 1,000.00     $ 1,000.00     $ 1,000.00     $ 1,000.00     $ 1,000.00  
Copper Price ($ / tonne)
  $ 5,000.00     $ 5,000.00     $ 5,000.00     $ 5,000.00     $ 5,000.00  
Au Price — Toz
  $ 525.00     $ 525.00     $ 525.00     $ 525.00     $ 525.00  
 
                                       
Production:
                                       
Tonnes Mined
    785,000       785,000       785,000       785,000       616,293  
Silver Head Grade (g/t)
    178.06       178.19       178.32       178.51       187.74  
Copper Head Grade (%)
    0.29       0.35       0.37       0.40       0.44  
Lead Head Grade (%)
    1.53       1.51       1.50       1.49       1.48  
Zinc Head Grade (%)
    3.30       3.33       3.35       3.36       3.38  
Gold Head Grade (g/t)
    0.00       0.00       0.00       0.00       0.00  
 
                                       
Silver Ounces Produced
    3,589,903       3,595,177       3,597,814       3,600,451       2,829,681  
Copper Tonnes Produced
    1,305       1,608       1,736       1,895       1,664  
Lead Tonnes Produced
    8,862       8,761       8,710       8,660       6,741  
Zinc Tonnes Produced
    17,347       17,512       17,594       17,677       13,972  
Gold Ounces Produced
    0       0       0       0       0  
 
                                       
Cash Flow Summary (x $1000)
                                       
Total NSR
    49,441       50,252       50,604       51,030       40,534  
Total Operating Costs
  $ (40,953 )   $ (40,953 )   $ (40,953 )   $ (40,953 )   $ (32,152 )
Other Costs
  $ (36 )   $ (46 )   $ (293 )   $ (439 )   $ (313 )
Royalty
  $ (484 )   $ (492 )   $ (495 )   $ (499 )   $ (397 )
Reclamation
  $ 0     $ 0     $ 0     $ 0     $ 0  
Total Depreciation
  $ (5,103 )   $ (5,103 )   $ (5,103 )   $ (5,103 )   $ (4,006 )
 
                             
Huaron Pre-Tax Income
  $ 2,865     $ 3,658     $ 3,760     $ 4,035     $ 3,667  
 
                                       
Taxes
  $ 0     $ 0     $ (885 )   $ (1,401 )   $ (962 )
Taxes Deferred
  $ 0     $ 0     $ 0     $ 0     $ 0  
 
                             
Net Income (Loss) after taxes
  $ 2,865     $ 3,658     $ 2,875     $ 2,634     $ 2,705  
 
                                       
Add back Depreciation
  $ 5,103     $ 5,103     $ 5,103     $ 5,103     $ 4,006  
Tax Deferred
  $ 0     $ 0     $ 0     $ 0     $ 0  
Total Changes Working Capital
  $ 0     $ 0     $ 0     $ 0     $ 0  
Reclamation Provision-Expenditures
  $ (500 )   $ (500 )   $ (500 )   $ (500 )   $ (500 )
Capital Costs
  $ (5,300 )   $ (7,100 )   $ (5,000 )   $ (2,600 )   $ (650 )
 
                             
Projected Cash Flows
  $ 2,167     $ 1,160     $ 2,477     $ 4,636     $ 5,560  
 
                                       
Financial Metrics:
                                       
Payable Silver Ounces
    3,182,128       3,186,128       3,188,128       3,190,128       2,506,813  
Cash Cost per Payable Ounce
  $ 4.17     $ 4.17     $ 4.17     $ 4.17     $ 4.17  
Not-Cash Cost per Ounce
  $ 1.50     $ 1.50     $ 1.50     $ 1.50     $ 1.50  
 
                             
Total Cost per Payable Ounce
  $ 5.67     $ 5.67     $ 5.67     $ 5.67     $ 5.67  
 
                                       
NSR per tonne
  $ 62.37     $ 63.39     $ 63.83     $ 64.37     $ 65.13  
Cost per tonne
  $ 52.17     $ 52.17     $ 52.17     $ 52.17     $ 52.17  
 
                             
Margin
  $ 10.20     $ 11.22     $ 11.66     $ 12.20     $ 12.96  
 
                             
         
43-101 (PanAm)   Huaron Mine   108

 

 


 

(LOGO)   (PAN AMERICA LOGO)
24.9.4 Metal Price Sensitivity
The positive economics of the project over a wide range of metal prices is shown in Table 24-9. Note that the higher metal prices are used for Case 2 and the lower metal prices are used for Case 3. As the date of this report is effective December 31, 2006, the analysis is developed for the period from 2007 to the end of life of mine (2018). Metal price is assumed to be the same for the duration of mine life for each case. The prices have been considerably higher than those used in Case 1; therefore, the authors of this Technical Report consider this to be a reasonable assumption. If metal price decreased by 9% of the assumed price, the NPV would be equal to $0.00.
Table 24-9: Metal Price Sensitivity
                         
Metal Prices   Case #1     Case #2     Case #3  
Silver $/Ounce
  $ 9.00     $ 10.80     $ 7.20  
Zinc $/Tonne
  $ 2,100.00     $ 2,520.00     $ 1,680.00  
Lead $/Tonne
  $ 1,000.00     $ 1,700.00     $ 600.00  
Copper $/Tonne
  $ 5,000.00     $ 6,000.00     $ 4,000.00  
Gold $/Ounce
  $ 525.00     $ 630.00     $ 420.00  
NPV (Discount Rate)
(x $1000)
  Case #1   Case #2   Case #3
NPV 0%
  $ 36,620     $ 114,268     $ (65,869 )
NPV 10%
  $ 21,360     $ 63,992     $ (34,000 )
NPV 15%
  $ 17,501     $ 50,667     $ (25,259 )
24.9.5 Grade Sensitivity
In order to test the metal grade sensitivity, each metal and for each year of operation was multiplied by factors of 100% (the case presented in Table 24-9), 75%, 90%,110%, and 125%. The cash flow and financial metrics for each case were then recalculated and are shown in Table 24-10. An 8 % decrease of the projected head grades would result in a NPV equal to $0.00.
Table 24-10: Metal Grade Sensitivity
                                         
Metal Grade Sensitivity   100% (base)   75%     90%   110%   125%
NPV 0%
  $ 36,620   $ (10,061 )   $ 38,165   $ 76,663   $ 135,542
NPV 10%
  $ 21,360   $ (5,355 )   $ 7,591   $ 45,110   $ 79,998
NPV 15%
  $ 17,501   $ (3,809 )   $ 1,667   $ 36,760   $ 65,073
         
43-101 (PanAm)   Huaron Mine   109

 

 


 

(LOGO)   (PAN AMERICA LOGO)
24.9.6 Capital Cost Sensitivity
The economics of the Huaron Mine are not sensitive to changes in capital cost up to the limits of the engineering estimate that is plus or minus 25%.
Table 24-11: Capital Cost Sensitivity
                                         
Capital Cost Sensitivity   100%     75%     90%     110%     125%  
NPV 0%
  $ 36,620     $ 53,408     $ 43,335     $ 29,905     $ 19,832  
NPV 10%
  $ 21,360     $ 31,616     $ 25,462     $ 17,257     $ 11,103  
NPV 15%
  $ 17,501     $ 25,853     $ 20,842     $ 14,161     $ 9,149  
24.9.7 Operating Cost Sensitivity
The economics of the project to variances in operating costs were calculated in a similar manner. This calculation further demonstrates that the economics of the project are sensitive on variance in operating costs. If operating costs increase by 11%, the undiscounted NPV would be equal to $0.00.
Table 24-12: Operating Cost Sensitivity
                                         
Operating Cost Sensitivity   100%     75%     90%     110%     125%  
NPV 0%
  $ 36,620     $ 113,202     $ 67,253     $ 1,609     $ (63,059 )
NPV 10%
  $ 21,360     $ 65,296     $ 39,021     $ 1,748     $ (33,974 )
NPV 15%
  $ 17,501     $ 52,562     $ 31,614     $ 2,049     $ (25,978 )
24.10 Mine Life
Pan American Silver completed the Huaron life of mine plan (LOM). Mr. Martin Wafforn, who is a co-author of this Technical Report has reviewed and determined in his professional judgment that the mine plan discussed in this Section 25 is sound and that this mine plan is to be adopted. The plan is based on providing average of 2,150 tpd of ore to the mill. This LOM plan does not include any inferred resources.
All of the proven and probable mineral reserves and measure and indicated mineral resources totalling 8.7 million tonnes grading 184 g/t silver, 3.18 % zinc, 0.26 % copper, and 1.67 % lead are planned to be mined over a mine life that extends to 2018. The mine plan does not include any of the inferred resources or any possible mineral reserve additions that may occur in the future through exploration. A total of 522,864 tonnes of measured and indicated reserves were included in the economic analysis grading 183 g/t Au, 3.25% Zn, 1.63% Pb and 0.37% Cu. The included mineral resources are projected to be mined at a yearly rate not exceeding 17% of the overall tonnes mined during that year. These mineral resource tonnes were added to the LOM plan to achieve the tonnage required to enable a full year of production during 2018. Every year, the Huaron Mine has mined mineral resources in place of mineral reserves and the authors of this Technical Report conclude that the addition of the measured and indicated mineral resources to the LOM plan is reasonable. No inferred mineral resources were included in the economic analysis.
         
43-101 (PanAm)   Huaron Mine   110

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
25.0 Date and Signature Page
The information in this report is current as of September 30, 2007. Operation data such as costs and recovery are more current, as it was made available during the time frame between the mineral resource and reserve estimate and the period taken to prepare this Technical Report.
This report has been prepared by Martin G. Wafforn, P. Eng. and Dr. Michael Steinmann, P. Geo. each of whom are Qualified Persons.
Respectfully submitted this 28th day of January, 2008.
     
“Martin Wafforn”
   
 
Signature and seal of Qualified Person
   
 
   
Martin Wafforn, P.Eng.
   
 
Print Name of Qualified Person
   
     
“Michael Steinmann”
   
 
Signature and seal of Qualified Person
   
 
   
Michael Steinmann, P.Geo., Ph.D.
   
 
Print Name of Qualified Person
   
         
43-101 (PanAm)   Huaron Mine   111

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
26.0 Figures
(MAP)
         
43-101 (PanAm)   Huaron Mine   112

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   113

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   114

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   115

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   116

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   117

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   118

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   119

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   120

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 11.1
PARAGENESIS OF HUARON POLYMETALLIC DEPOSIT
(MAP)
         
43-101 (PanAm)   Huaron Mine   121

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   122

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 18-1
Reconfiguration of the Grinding Circuit
(MAP)
(MAP)
         
43-101 (PanAm)   Huaron Mine   123

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 18-2
Reconfiguration of the Bulk Flotation Circuit
(MAP)
This Diagram shows the WS240 cell that receives the tailings from the 1st bulk cleaning. The concentrate is sent to the zinc circuit because of the high zinc contents and the tailings do not return to the head of the flotation.
         
43-101 (PanAm)   Huaron Mine   124

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 18-3
Reconfiguration of the Cu/Pb Separation Circuit
(MAP)
(MAP)
         
43-101 (PanAm)   Huaron Mine   125

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 18-4
Reconfiguration of the Zinc Flotation Circuit
(MAP)
(MAP)
         
43-101 (PanAm)   Huaron Mine   126

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 19-1A
ALIANZA VEIN
Variogram Analysis
Silver
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   127

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 19-1B
TAPADA VEIN
Silver
Variogram Analysis
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   128

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
FIGURE 19-1C
COMETA VEIN
Silver
Variogram Analysis
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   129

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   130

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   131

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   132

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   133

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   134

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   135

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   136

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   137

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   138

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   139

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(MAP)
         
43-101 (PanAm)   Huaron Mine   140

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   141

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   142

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   143

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   144

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   145

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   146

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   147

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   148

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   149

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   150

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   151

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   152

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   153

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   154

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   155

 

 


 

(LOGO)   (PAN AMERICAN LOGO)
(GRAPH)
         
43-101 (PanAm)   Huaron Mine   156

 

 


 

CERTIFICATE OF QUALIFIED PERSON
I, Martin Wafforn, P.Eng, of Pan American Silver Corp., 1500-625 Howe St., Vancouver, British Columbia, Canada V6C 2T6 do hereby certify that:
1.  
I graduated with a degree in Bachelor’s of Science in Mining from Camborne School of Mines in Cornwall, England in 1980.
 
2.  
I am a Professional Engineer in good standing in the Province of British Columbia in the areas of Mining engineering. I am a Chartered Engineer in good standing in the United Kingdom.
 
3.  
I am currently employed as Vice President of Mine Engineering for Pan American Silver Corp. and, by reason of my employment, am not independent of Pan American Silver Corp. as described in section 1.4 of NI 43-101.
 
4.  
I have worked as an engineer in the mining industry for a total of twenty-six years since my graduation from Camborne School of Mines.
 
5.  
I have read the definition of “qualified person” set out in National Instrument 43-101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101.
 
6.  
Pan American Silver Corp. is a “Producing Issuer” as defined in NI 43-101.
 
7.  
I visited the Huaron property from September 18 to September 19, 2007. I am responsible for the sections 1, 2, 3, 4, 5, 6, 7, 8, 17, 18, 20, 21, 22, 23, 24 and 25 of the report entitled “Technical Report for the Huaron Property, Cerro de Pasco, Peru” dated effective December 31, 2006 (the “Technical Report”) and for all figures, tables, and graphs within those sections of the Technical Report.
 
8.  
I am co-author of the Technical Report dated effective December 31, 2006.
 
9.  
I have read NI 43-101 and the Technical Report has been prepared in compliance with NI 43-101.
 
10.  
As of the date of this certificate, to the best of my knowledge, information and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make the Technical Report not misleading.
11.
Dated the 28th Day of January, 2008.
     
“Martin G. Wafforn”
 
Signature and Seal of Qualified Person
   
Martin G. Wafforn, P.Eng.
   

 

- 1 -


 

CONSENT OF QUALIFIED PERSON
     
TO:
  British Columbia Securities Commission
 
  Alberta Securities Commission
 
  Saskatchewan Financial Services Commission
 
  The Manitoba Securities Commission
 
  Ontario Securities Commission
 
  Autorité des marchés financiers
 
  New Brunswick Securities Commission
 
  Securities Commission of Newfoundland & Labrador
 
  Nova Scotia Securities Commission
 
  Registrar of Securities, Prince Edward Island
 
  Government of the Northwest Territories, Department of Justice, Securities Registry
 
  Nunavut Legal Registries
 
  Registrar of Securities, Government of the Yukon Territories
I, Martin Wafforn P.Eng. do hereby consent to the filing, with the regulatory authorities referred to above, of the technical report titled “Technical Report for the Huaron Property, Cerro de Pasco, Peru” dated effective December 31, 2006 (the “Technical Report”).
No additional written disclosure will be filed with the Technical Report.
Dated the 28th Day of January, 2008.
     
“Martin G. Wafforn”
 
Signature and Seal of Qualified Person
   
Martin G. Wafforn, P.Eng.
   
     
Martin G. Wafforn P.Eng.
 
Print name of Qualified Person
   

 

- 2 -


 

CERTIFICATE OF QUALIFIED PERSON
I, Dr. Michael Steinmann, P.Geo., Ph.D., of Pan American Silver Corp., 1500-625 Howe St., Vancouver, B.C., Canada V6C 2T6, do hereby certify that:
1.  
I graduated with a degree in Master of Science in Geology from the University of Zurich in 1993. In addition, I earned a Doctor of Natural Science in Geology from the Swiss Federal Institute of Technology, Zurich, Switzerland.
 
2.  
I am a Professional Geoscientist in good standing in the Province of British Columbia in the areas of mining geology and exploration.
 
3.  
I have worked as a geologist for a total of fourteen years since my graduation from the University of Zurich.
 
4.  
I have read the definition of “qualified person” set out in National Instrument 43-101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of the NI 43-101.
 
5.  
I am currently employed as Senior Vice President of Exploration and Geology for Pan American Silver Corp. and, by reason of my employment, am not independent of Pan American Silver Corp. as described in section 1.4 of NI 43-101.
 
6.  
Pan American Silver Corp. is a “producing issuer” as defined in NI 43-101.
 
7.  
I visited the Hauron property from September 18, 2007 to September 19, 2007. I am responsible for the sections 1,2,3,4, 5, 9, 10, 11, 12, 13, 14, 15, 16, 19, 21, 22, 23 and 24 of the report entitled “Technical Report for the Huaron Property, Cerro de Pasco, Peru” dated effective December 31, 2006(the “Technical Report”) and for figures, tables, and graphs contained in sections 9, 10, 11, 12, 13, 14, 15, and 19 of the Technical Report.
 
8.  
I am co-author of the Technical Report dated effecdtive December 31, 2006
 
9.  
I have read NI 43-101 and the Technical Report has been prepared in compliance with NI 43-101.
 
10.  
As of the date of this certificate, to the best of my knowledge, information and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make the Technical Report not misleading.
Dated the 28th day of January, 2008.
 
“Michael Steinmann”
 
Signature and seal of Qualified Person
   
Michael Steinmann, P.Geo., Ph.D.
   

 

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CONSENT OF QUALIFIED PERSON
     
TO:
  British Columbia Securities Commission
 
  Alberta Securities Commission
 
  Saskatchewan Financial Services Commission
 
  The Manitoba Securities Commission
 
  Ontario Securities Commission
 
  Autorité des marchés financiers
 
  New Brunswick Securities Commission
 
  Securities Commission of Newfoundland & Labrador
 
  Nova Scotia Securities Commission
 
  Registrar of Securities, Prince Edward Island
 
  Government of the Northwest Territories, Department of Justice, Securities Registry
 
  Nunavut Legal Registries
 
  Registrar of Securities, Government of the Yukon Territories
I, Michael Steinmann, P.Eng. do hereby consent to the filing, with the regulatory authorities referred to above, of the technical report titled “Technical Report for the Huaron Mine Project, Cerro de Pasco, Peru” dated effective Decemeber 31, 2006 (the “Technical Report”).
No additional written disclosure will be filed with the Technical Report.
Dated the 28th Day of January, 2008.
     
“Michael Steinmann”
 
Signature and Seal of Qualified Person
   
Michael Steinmann, P.Eng.
   
 
 
 
Michael Steinmann, P.Eng.
   

 

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