Mineral Resources and Reserves

There has been no material change in the attributable Group Mineral Resource estimate which reduced by 2.2Moz Pt. The change is largely attributable to depletion. The estimate as at 30 June 2019 is dominated by Zimplats and Impala, which on a combined basis, contribute some 74% of the total attributable Group Mineral Resources.

Attributable Mineral Resources

Overall the attributable Group Mineral Reserve estimate remains static at 21.2Moz Pt. The resultant estimate as at 30 June 2019 is based on production depletion being offset by modest increases in Mineral Reserves at Zimplats. Some 53% of the attributable Group Mineral Reserves (Pt) is located at Zimplats and a further 32% at Impala.

Mineral Reserves
Mineral Reserve sensitivity

The deeper Rustenburg Mineral Resources beyond current infrastructure investment require a real basket price of between R33 000 and R36 000 per Pt oz (US$2 550). This suggests that future investments at Impala will at best be marginal under the current price assumptions.

Mineral Reserve sensitivity
Platinum Mineral Reserve and depth range for individual Implats shafts

The updated allocation of Implats’ Mineral Reserves per shaft infrastructure as at 30 June 2019 is depicted in the accompanying graphic illustration. The range in depth below surface and quantum relating to the infrastructure is shown below and depicts among others the advantage at Zimplats in this regard, both from a depth and a size perspective.

Platinum Mineral Reserve