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  • Last updated

    7:14pm on Nov 29, 2022

Reserves & resources

Summary as at 31 December 2021

AMERICAS

  • Total 2E PGM Mineral Resources of 89.6Moz, a year-on-year increase of 3.1%
  • Total 2E PGM Mineral Reserves of 27.3Moz, a year-on-year increase of 1.5%
  • Total copper Mineral Resources of 13,601.8Mlb, a decrease of 26.2%
  • Maiden lithium carbonate equivalent (LCE) Mineral Resource of 88.9Mt
  • Maiden boric acid (H3BO3) Mineral Resource of 846.3Kt

SOUTHERN AFRICA

  • Total 4E PGM Mineral Resources of 174.7Moz, a year-on-year decrease of 19.6%
  • Total 4E PGM Mineral Reserves of 32.2Moz, a year-on-year decrease of 18.6%
  • Total gold Mineral Resources of 58.7Moz, a decrease of 6.5%
  • Total gold Mineral Reserves of 10.5Moz, a decrease of 7%
  • Total U3O8 Mineral Resources of 66.0Moz, a 16.1% decrease year-on-year

EUROPE

  • Maiden lithium carbonate equivalent (LCE) Mineral Resources of 105.1Kt

AUSTRALIA

  • Maiden zinc Mineral Resources of 1,016.3Mlb
  • Maiden zinc Mineral Reserves of 710.9Mlb

US PGM operations – Mineral Reserves reconciliation
Factors2E PGM (Moz)
31 December 202026.9
Depletion(0.7)
Post depletion26.3
Area Inclusions/Exclusions(0.3)
Geological interpretation5.4
Estimation methodology(2.7)
Economic parameters0.0
Modifying factors(1.4)
31 December 202127.3
SA PGM operations – Mineral Reserves reconciliation
Factors4E PGM (Moz)
Mineral Reserves 2020 (Attributable)39.5
Mineral Reserves 2020 (Minority Shareholders)3.7
Mineral Reserves 2020 (100%)43.2
2021 Depletion(2.9)
Post Depletion40.3
Economic Valuation10.8
Evaluation(0.3)
Geological Changes0.3
Boundary Changes22.1
Technical Factors(0.1)
Mineral Reserves 2021 (100%)43.2
Mineral Reserves 2021 (Attributable to Minority Shareholders)3(11.0)
Mineral Reserves 2021 (Attributable)32.2
  1. LoM gains associated with tail-end optimisation
  2. Rustenburg additions due to the Kroondal PSA agreement with Anglo American, and Mimosa land addition at Wedza West
  3. Revised approach to calculating attributable Oz
SA gold operations – Mineral Reserves reconciliation
FactorsGold (Moz)
31 December 202011.3
Depletion(1.1)
Post Depletion10.1
Area Inclusions/Exclusions10.5
Attributable adjustment2(0.1)
Geological Interpretation3(0.1)
Economic Parameters40.1
Modifying factors5(0.01)
31 December 202110.5
  1. Driefontein VCR area inclusions and Kloof tail cut
  2. DRDGOLD and Cooke
  3. Kloof estimation model changes on VCR
  4. Surface tailings capacity increase a Kloof 3 Shaft closure
  5. MCF changes
SA Gold development projects – Mineral Reserves reconciliation
FactorsGold (Moz)
31 December 20202.2
Area Inclusions/Exclusions1(0.4)
31 December 20212.6
  1. Burnstone tail-end optimisation

References

Explore More

US projects

Altar project, Argentina

We currently have three exploration projects in the Americas, two located in Argentina and one in Ontario, Canada.

Read More

SA gold projects

Exploration drilling, South Africa

Sibanye-Stillwater has two advanced gold projects underway in South Africa – Burnstone and Southern Free State (SOFS).

Read More

Resources and Reserves 2021

The 2021 report provides a full description of the Group’s mineral asset estimation as at 31 December 2021.

Read More