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GLOSSARY OF MINING TERMS
The following explanations are not intended as technical definitions, but rather are intended to assist the general
reader in understanding certain terms as used in this annual report.
Alluvial: the product of sedimentary processes in rivers, resulting in the deposition of alluvium (soil deposited by a river).
All-in sustaining costs: all-in sustaining costs include mine production costs, transport and refinery costs, applicable
general and administrative costs, costs associated with movements in production inventories, ore stockpiles, as
well as ongoing environmental rehabilitation costs as well as transfers for stripping activities and costs associated
with royalties. Employee termination costs are included, however employee termination costs associated with
major restructuring and shaft closures are excluded. The following costs are also included: LED expenditure for
continuing operations, share-based payments for continuing operations, corporate costs, sustaining exploration
costs and sustaining capital expenditure including OCD expenditure and rehabilitation accretion and amortization
for continuing operations. Depreciation costs are excluded. All-in sustaining costs per ounce are attributable all-in
sustaining costs divided by attributable ounces of gold sold.
Auriferous: a substance that contains gold (Au).
Beneficiation: the process of adding value to gold products by transforming gold bullion into fabricated gold products.
By-products: Any products emanating from the core process of producing gold, including silver and uranium in South
Africa and copper, silver and molybdenum in Papua New Guinea.
Carbon in leach (CIL): Gold is leached from a slurry of gold ore with cyanide in agitated tanks and adsorbed on to
carbon granules in the same circuit. Granules are separated from the slurry and treated to remove the gold.
Carbon In Pulp (CIP): Gold is leached conventionally from a slurry of gold ore with cyanide in agitated tanks. The
leached slurry passes into the CIP circuit where carbon granules are mixed with the slurry and gold is absorbed
onto the carbon. Granules are separated from the slurry and treated to remove gold.
Carbon In Solution (CIS): a process similar to CIP except that the gold, which has been leached by the cyanide into
solution, is separated by the process of filtration (solid/liquid separation). The solution is then pumped through six
stages where the solution comes into contact with the activated carbon granules.
Cash costs: total cash costs include site costs for all mining, processing and administration, reduced by contributions
from by-products and include royalties and production taxes. Depreciation, rehabilitation, corporate
administration, retrenchment, capital and exploration costs are excluded. Total cash costs per ounce are
attributable total cash costs divided by attributable ounces of gold produced.
Conglomerate: a coarse-grained classic sedimentary rock, composed of rounded to sub-angular fragments larger than
2mm in diameter (granules, pebbles, cobbles, boulders) set in a fine-grained matrix of sand or silt, and commonly
cemented by calcium carbonate, iron oxide, silica or hardened clay.
Cut-off grade: minimum grade at which a unit of ore will be mined to achieve the desired economic outcome.
Decline: an inclined underground access way.
Depletion: the decrease in quantity of ore in a deposit or property resulting from extraction or production.
Development: process of accessing an orebody through shafts or tunneling in underground mining.
Electro-winning: the process of removing gold from solution by the action of electric currents.
Elution: removal of the gold from the activated carbon before the zinc precipitation stage.
Exploration: activities associated with ascertaining the existence, location, extent or quality of mineralized material,
including economic and technical evaluations of mineralized material.
Fabricated gold: gold on which work has been performed to turn it into a product, such as jewelry, which differs from a
pure investment product, such as a gold bullion bar.
Footwall: the underlying side of a fault, orebody or stope.
Forward sale: the sale of a commodity for delivery at a specified future date and price.
Gold reserves: the gold contained within proved and probable reserves on the basis of recoverable material (reported as
mill delivered tons and head grade).
Gold produced: refined gold derived from the mining process, measure in ounces or kilograms in saleable form.
Grade: quantity of gold contained in a unit weight of gold-bearing material, generally expressed in ounces per short ton
of ore.