Mineral
Reserves
2018
2018
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This report contains the Gold Fields Mineral Resource and Mineral Reserve statement as at December 2018. It provides key technical information to supplement the information summarised in the Integrated Annual Report (IAR) and it is available on the Company website at www.goldfields.com. In addition to providing transparent and compliant information in accordance with the South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves (SAMREC Code), 2016 edition, this supplement highlights issues viewed as material to the reporting of Mineral Resources and Mineral Reserves per mining asset and growth project. Gold Fields’ commitment to materiality, transparency and competency in its public reporting remains of paramount importance and continues to be endorsed by the Group’s external audit and assurance protocol.
This year’s Mineral Resource and Mineral Reserve position reflects the Company strategy in action, specifically the consistent funding of brownfield exploration, reinvestment in the sustainability and growth of the operations, embedded Business Improvement (BI) programmes and the advancement of quality projects. The robustness of the Mineral Resources and Mineral Reserves is testimony to the quality of the assets in the portfolio and is the result of a rigorous annual planning process that enforces a strong linkage between strategic, business and life-of-mine (LoM) planning that underpins alignment with Group objectives.
| MANAGED | ATTRIBUTABLE | |||
| DECEMBER 2017 |
Au Mineral Resources | 123.1Moz | 103.7Moz | |
| Cu Mineral Resources | 53.1Moz | 49.0Moz | ||
| Au Mineral Reserves | 767Mlb | 764Mlb | ||
| Cu Mineral Reserves | 2.3Moz | 2.2Moz | ||
| 12-MONTH DEPLETION |
Au production depletion from Mineral Resources | 2.3Moz | 2.2Moz | |
| Cu production depletion from Mineral Reserves | 91Mlb | 91Mlb | ||
| Au production depletion from Mineral Reserves | 2.1Moz | 2.0Moz | ||
| Cu production depletion from Mineral Reserves | 88Mlb | 88Mlb | ||
| DECEMBER 2018 |
Au Mineral Resources | 115.3Moz | 96.6Moz | |
| Cu Mineral Resources | 10,769Mlb | 4,813Mlb | ||
| Au Mineral Reserves | 51.9Moz | 48.1Moz | ||
| Cu Mineral Reserves | 695Mlb | 691Mlb |
| – | Group total figures for 2018, inclusive of projects, but exclusive of Asanko JV, are net of depletion |
| – | The gold and copper prices used for the December 2018 Mineral Resources were US$1,400/oz and US$3.2/lb and for the Mineral Reserves, US$1,200/oz and for copper a sliding scale from short to long term of US$2.5/lb to US$2.8/lb were used |
| – | Measured and Indicated Mineral Resources are reported inclusive of those Mineral Resources modified to produce Mineral Reserves |
| GFI-managed Mineral Resource reconciliation | GFI-managed Mineral Resource reconciliation | |
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| GFI-managed Mineral Reserve reconciliation | GFI-managed Mineral Reserve reconciliation | |
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