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Mineral Resource and Mineral Reserve depletion and growth

Mineral Resources and Mineral Reserves depletion and growth

The year-on-year change in the attributable Mineral Resource and Mineral Reserve statement is summarised below.

The increase in Mineral Resource ounces is primarily due to the inclusion of the new growth projects (Chucapaca and Talas), expansion of the Cerro Corona pit (inclusion of the Sylvita concession) and discoveries at St Ives, Agnew and Damang. The reduction at South Deep, Driefontein, Beatrix, Kloof and Tarkwa is mainly due to mining depletion.

Attributable Mineral Resource ounces
June 2009 vs June 2010

Attributable Mineral Resource ounces June 2009 vs June 2010

The growth in Mineral Reserves at Damang and Agnew is as a result of discovery, gold price, converting to owner mining (cost reduction) and model enhancements. In addition to depletion, the increased capital cost (TSF and crusher) at Tarkwa, increased TSF capacity at Cerro Corona (+6 Mt) and extensional drilling at St Ives, necessitated remodelling and scheduling. The reduction at Driefontein, Kloof, Beatrix and South Deep is primarily due to depletion and exclusion of uneconomic mining areas, plus high risk pillars and remnants.

Attributable Mineral Reserve ounces
June 2009 vs June 2010

Attributable Mineral Reserve ounces June 2009 vs June 2010