SIBANYE GOLD MINERAL RESOURCES AND RESERVES REPORT 2015 MINERAL RESOURCES AND MINERAL RESERVES REPORT 2015 INTENT Sibanye Gold Limited’s guiding principles are to ensure integrity and responsibility in reporting its Mineral Resources and Mineral Reserves, to be compliant with public and internal regulatory codes and to inform all stakeholders on the status of the Group’s fundamental asset base. Sibanye further aims to report on information, that is rated important for disclosure, to a level of detail that ensures competency, transparency and materiality. Neal Froneman commented: 'The increase in Reserves reflects the continious positive impact of prior operational restructuring, the increased technical focus at the operations, as well as R3.6 billion capital investment into organic projects’ Beatrix 3 Shaft HOME PRINT BACK NEXT CONTENTS CONTENTS SECTION 1 GROUP OVERVIEW Introduction 2 SECTION 3 Highlights 3 SUPPLEMENTARY Location 4 INFORMATION Headline numbers 5 75 Professional organisations Corporate governance 6 75 SAMREC Code definitions Group consolidated Mineral 76 Glossary of terms Resource and Mineral Reserve Statement 10 78 Conversion table Group consolidated Mineral Resources and Mineral Reserves depletion and growth 15 79 Abbreviations 80 Disclaimer SECTION 2 OPERATIONS SECTION 4 AND PROJECTS SHAREHOLDER Introduction 20 PLANS Operations Beatrix Beatrix 24 Cooke Cooke 32 Driefontein Driefontein 42 Kloof Kloof 50 Burnstone Projects Burnstone Project 59 Sibanye is a forerunner in West Rand Tailings Retreatment Project 64 South African gold mining, Southern Orange Free State Projects 67 with a portfolio of four operating mines, a surface mining operation and organic growth projects Sibanye Gold Mineral Resources and Mineral Reserves 2015 1 SECTION 1 GROUP OVERVIEW INTRODUCTION Sibanye Gold Limited (‘Sibanye Gold’, ‘Sibanye’, or ‘the Group’) is an unhedged producer of gold, with an attributable, annualised production IMPORTANT of ~1.5Moz of gold from four underground mining operations and a NOTICES surface mining operation, all located in South Africa. The Group is • The United States Securities and additionally concentrating on growing its planned uranium production Exchange Commission (SEC) and ramping the Burnstone Project to full production. permits mining companies, in their filings with the SEC, to disclose only those mineral deposits that The geology and evaluation models of the Group’s operational assets have been updated to reflect a company can economically the latest available data, and have proved to be stable with only minor variances in the Mineral and legally extract or produce Resources and Mineral Reserves year-on-year. Sibanye Mineral Resource and Mineral Reserve from. Certain terms are used protocols have been employed through all operations and project portfolios. Operational models in this report, such as ‘Mineral are coupled with an integrated and holistic mine design and schedule plan that is based on actual Resources’, that the SEC guidelines and expected performance levels. strictly prohibit companies from The Mineral Resources and Mineral Reserves have been prepared in compliance with and to including in filings. United States the extent required by the South African Code for the Reporting of Exploration Results, Mineral investors are urged to consider Resources and Mineral Reserves (SAMREC Code – 2007 edition and amended July 2009), South closely the disclosure in the Form African Code for the Reporting of Mineral Asset Valuation (SAMVAL Code – 2008 edition and 20-F submission. amended July 2009). • Mineral Resources and Mineral The mineral asset valuations supporting the Mineral Reserve estimates have been prepared in Reserves reported are managed compliance with and to the extent required by the 2008 SAMVAL Code, published under the joint by Sibanye unless otherwise auspices of the South African Institute of Mining and Metallurgy (SAIMM) and the Geological stated, and Mineral Resources are Society of South Africa (GSSA). inclusive of Mineral Reserves. At 31 December 2015, Sibanye had total managed Mineral Resources, inclusive of projects, of • Rounding-off of figures in this report 98.8Moz of gold and 229.9Mlb of uranium. Managed Mineral Resources (excluding projects) may result in minor computational were 73.5Moz gold and 95.4Mlb uranium net of depletion. The corresponding total managed gold discrepancies. Where this occurs it and uranium Mineral Reserves inclusive of projects were 31.0Moz net of 1.6Moz depletion, and is not deemed significant. 113.8Mlb, net of 0.3Mlb depletion respectively. • The 31 December 2015 Mineral Resources and Mineral Reserves are net of depletion. • Above infrastructure (AI) is that part of the Mineral Resources and/or Mineral Reserves, which is above the lowest mining level and can be accessed via the current mine infrastructure (shafts and underground haulages). • Below infrastructure (BI) is that part of the Mineral Resources and/ or Mineral Reserves which is below the lowest mining level and that can only be accessed following approved capital expenditure. Driefontein 10 Shaft 2 Sibanye Gold Mineral Resources and Mineral Reserves 2015 HOME PRINT BACK NEXT SECTION 1 GROUP OVERVIEW HIGHLIGHTS 98.8Moz 31.0Moz Gold Mineral Resources Gold Mineral Reserves 229.9Mlb 113.8Mlb Uranium Mineral Resources Uranium Mineral Reserves Mineralised conglomerate TOTAL GOLD MINERAL TOTAL URANIUM MINERAL RESERVES INCREASED BY RESERVES INCREASED BY 9% 11% • The mature Sibanye operations planned production levels are • The total uranium Mineral Resources at the operations based on current and expected performance levels, and are increased year-on-year to 95.391Mlb (93.353Mlb as at reliant on the existing stable geology and estimation models. 31 December 2014). • Year-on-year the post production depleted Mineral Resources • The total Uranium Mineral Reserves at the operations of the underground operations Kloof, Driefontein, Beatrix and increased considerably from 3.827Mlb (as at December Cooke reduced to 73.103Moz (compared to 78.124Moz as at 2014) to 14.727Mlb (as at 31 December 2015). 31 December 2014). • Gold Mineral Reserves have increased by 2.294Moz with • The total gold Mineral Reserves at the operations increased the inclusion of Beisa and Burnstone Projects. by 4% to 20.591Moz compared to 19.878Moz as at • Uranium Mineral Reserves have increased by 11.654Mlb 31 December 2014. with the inclusion of the Beisa Project at Beatrix. • Development has commenced at Burnstone subsequent to • Ongoing assessment of secondary reefs and white areas the finalisation of the feasibility study (FS) in 2015. at Kloof and Driefontein, has resulted in the inclusion of • The Kloof drop-down project has proceeded into 1.435Moz gold Mineral Reserves. development phase. Sibanye Gold Mineral Resources and Mineral Reserves 2015 3 SECTION 1 GROUP OVERVIEW GROUP OVERVIEW LOCATION OF GOLD OPERATIONS AND PROJECTS Competency and integrity are Legend key in the Sibanye Mineral Sibanye Resource and Mineral Reserve Witwatersrand Basin Limpopo declaration strategy. The aim is Limpopo sustained delivery and organic Vredefort Dome growth within existing operations and new projects. The Mineral Resources and Mineral Reserves, status and changes at each North West operation and project, are addressed Mpumalanga A WEST WITS within this supplement to the Sibanye Gold Integrated Annual Report 2015, to Randfontein Kloof Operation Westonaria Johannesburg Randfontein a level of detail that ensures competency, North West Carletonville Cooke Operation Balfour Johannesburg transparency and materiality. Potchefstroom Driefontein Operation Westonaria Parys West Rand Tailings Carletonville Retreatment Project A Potchefstroom Balfour B SOUTH RAND Vredefort Welkom B Virginia Burnstone Project Theunissen KwaZulu-Natal C FREE STATE Bloemfontein Beatrix Operation Beisa North Project Northern Cape Lesotho Beisa South Project Welkom Free State Durban SOFS Projects Virginia C Free State Theunissen T N Eastern Cape Bloemfontein Lesotho 0 100 200km Sibanye Northern Cape Witwatersrand Basin Western Cape Cape Town Operations Projects 0 100 200km Eastern Cape Driefontein 1 Plant 4 Sibanye Gold Mineral Resources and Mineral Reserves 2015 Sibanye Western Cape Witwatersrand Basin Cape Town Operations Projects 0 100 200km HOME PRINT BACK NEXT SECTION 1 GROUP OVERVIEW Gold Mineral Resources (98.8Moz) 10% 19% 16% HEADLINE NUMBERS 7% 20% 28% 31 DECEMBER 2014 103.944Moz 227.379Mlb Beatrix 9.6Moz Cooke 15.9Moz Gold Mineral Resources Uranium Mineral Resources Driefontein 19.8Moz Kloof 28.2Moz 28.425Moz 102.480Mlb WRTRP 6.5Moz Projects 18.8Moz Gold Mineral Reserves Uranium Mineral Reserves Gold Mineral Reserves (31.0Moz) 12 MONTHS PRODUCTION DEPLETION 1.984Moz 0.187Mlb 13% 14% Gold Mineral Resources Uranium Mineral Resources 5% 1.577Moz 0.291Mlb 21% Gold Mineral Reserves Uranium Mineral Reserves 26% 21% 31 DECEMBER 2015* 98.790Moz 229.852Mlb Beatrix 4.3Moz Cooke 1.5Moz Gold Mineral Resources Uranium Mineral Resources Driefontein 8.2Moz Kloof 6.5Moz MANAGED GOLD MINERAL RESOURCES AND RESERVES SPLIT 31 DECEMBER 2015 AND PROJECT AS AT PER OPERATION WRTRP 6.5Moz Projects 3.9Moz 30.988Moz 113.814Mlb Gold Mineral Reserves Uranium Mineral Reserves Uranium Mineral Resources (229.9Mlb) BEATRIX COOKE DRIEFONTEIN KLOOF 12% Capex Capex Capex Capex 15% R597m R337m R994m R1,130m Operating profit Operating profit Operating profit Operating profit 30% R1,425m R(4)m R3,002m R1,914m 43% Gold produced Gold produced Gold produced Gold produced 10,105kg 6,252kg