Gold Fields Limited · JSE:GFI

Gold Fields — Technical Presentation (September 2011)

36 slides from Gold Fields's technical presentation, September 2011

  1. Slide 1: Overview of the South Deep Project

    Overview of the South Deep Project September 2011

  2. Slide 2: Our Vision and Values

    Our Vision and Values To be the global leader in sustainable gold mining 2

  3. Slide 3: Locality – Wits Gold Fields

    Locality – Wits Gold Fields ƒ Historic production: > 1 600 000 000 oz of gold ƒ 4.5bn tons of ore treated at an average grade of 9.0g/t The Witwatersrand Gold Fields 3

  4. Slide 4: Locality – South Deep

    Locality – South Deep Cooke Ezulwini Blyvooruitsicht Tautona Mponeng Kusasalethu Well established mining area 4

  5. Slide 5: Overview

    Overview Building a world class mine Outline Production and Capex (oz) Rbn ƒ Massive underground orebody 800 2.5 ƒ 81.5 Moz Resource 600 2.0 ƒ 34.5 Moz Reserve 400 1.5 1.0 ƒ Fully mechanised mine 200 0.5 ƒ Build-up to 750koz run-rate by end of 2014 0 0.0 ƒ Life of Mine of 54 years 2009 A 2010 A 2011

  6. Slide 6: History

    History ƒ 1950: Prospecting in the area commenced ƒ 1961: Production at Western Areas Gold Mine (WAGM) commenced ƒ 1999: Placer Dome Western Areas (PDWA) Joint Venture (JV) formed ƒ 2000: Name changed to South Deep Gold Mine ƒ 2005: Twin Shaft Complex opened ƒ 2006: Gold Fields acquired Barrick’s 50

  7. Slide 7: Safety

    Safety Safety Trends LDIFR FIIFR 25 1.2 21.29 0.93 20 0.8 15 10 5.78 0.4 5 2.8 2.4 1.82 0.07 0.12 0.06 0 0 0 F2008 F2009 F2010 F2011 C2011 F2008 F2009 F2010 F2011 C2011 SIFR 8 6.66 6 4 2.11 2 1.1 1.09 0.84 0 F2008 F2009 F2010 F2011 C2011 7

  8. Slide 8: Our People

    Our People ƒ Employ approximately 3,700 people on operation ƒ Diverse workforce ƒ Well trained and qualified personnel ƒ World class medical facilities ƒ Wellness programme ƒ “24 hours in the life of a miner” ƒ Organised labour ƒ 72% NUM, 15% UASA and 14% non affiliated 8

  9. Slide 9: Sustainable Development

    Sustainable Development Environmental Management ƒ Management of environmental aspects in line with latest legislative requirements ƒ Environmental Management Systems according to best practice international standards (ISO14001 certified) ƒ Water Management part of regional strategy ƒ International

  10. Slide 10: Geology

    Fiecos J General overview Geology Upper Elsburg clastic wedge ¥ Upper Elsburg BLACK REEF Sub-Crop a 2 ie} c 0 < c fe) - Ww c a Lf Yas BEALE ) LiL] ! MM pee ee TRY South Shaft 95 Level 2 E S i} Q i o 3 0 2

  11. Slide 11: Geology

    Geology Vertical slice through the orebody The primary reef targets are the MB’s and the EC’s 11

  12. Slide 12: Geology – Exploration Programme

    Geology Exploration Programme ƒ Surface exploration programme of R173 million Surface Pretoria Group Chuniespoo rt Group Black Reef Base at ± 1800mbc Klipriviersber g Group Base at ± VCR 3000mbc D Upper D3 D4 5 D1 Elsburg D2 Orig. D7 D s D 6 8 12

  13. Slide 13: Resources

    Resources Measured & Indicated Resources Tonnes (Mt) Grade (g/t) Gold (‘000 oz) Classification Dec 10 Jun 10 Jun 09 Dec 10 Jun 10 Jun 09 Dec 10 Jun 10 Jun 09 Underground Measured 41.5 40.5 41.6 7.7 7.4 7.4 10,331 9,684 9,890 Indicated (AI) 250.5 125.7 125.9 6.6 8.7 8.7 53,523 35,016 35,038 Total Abo

  14. Slide 14: Resources

    Resources Inferred Resources Tonnes (Mt) Grade (g/t) Gold (‘000 oz) Classification Dec 10 Jun 10 Jun 09 Dec 10 Jun 10 Jun 09 Dec 10 Jun 10 Jun 09 Underground Inferred AI 17.2 78.0 78.0 6.3 5.8 5.8 3,460 14,566 14,566 Inferred(BI) 21.8 - - 6.5 - - 4,572 - - Grand Total 39.0 78.0 78.0 6.4 5.8 5.8 8,03

  15. Slide 15: Resources

    Resources Approximately one third of those of Gold Fields, AngloGold Ashanti and Barrick Resources (Moz) 280 240 200 160 120 80 40 0 ______________________ Source: Goldval.com as at September 2010

  16. Slide 16: Mining Philosophy

    Mining Philosophy Mining a massive orebody at depth De-stress mining Backfilling Large backfilled stope Mechanisation Mechanisation 16

  17. Slide 17: Mine Design and Scheduling

    Mine Design and Scheduling Reserving a great orebody Conventional Drifts & Drives Conventional Breast Mining Apparent Dip Drifts & Drives with Benching Conventional Destress Stoping Trackless Drifts & Benches Longhole Stoping Conventional Composite Mining Down Dip Accessed Destressing 17

  18. Slide 18: Mining Methods – Drift and Bench Mining

    Mining Methods – Drift and Bench Mining 1 Primary drift mining Drift access Bench access 2 Bench access 3 Bench mining Mining direction Mining direction

  19. Slide 19: Mining Methods – Destress Mining

    Mining Methods – Destress Mining 1 Stoping-drive mining Main-access-drive Stoping-drive Recently filled stoping drive 2.2m 3 Stoping-drive completion 2 Advance stope-access-drive

  20. Slide 20: Mining Methods – Longhole stoping

    Mining Methods – Longhole stoping • Slot access 1 Longhole stope access 2 Slot development Slot raise 3 Slot development 4 Stoping 5 Stoping Completed slot

  21. Slide 21: Mine Design and Scheduling

    Mine Design and Scheduling 105 Development of intake and conveyer infrastructure Development towards the Wrench fault (105 & 105 levels) Build-up in Phase-1 NoW Current to October 2015

  22. Slide 22: Mine Design and Scheduling

    Mine Design and Scheduling 105 SoW commence Jan 2013 110 Level Decline to SoW commence in October 2012 Continuation of the Phase-1 NoW at ~220Kt/m Destress mining accessed from 105 Level South of the Wrench fault Current to Jan 2019

  23. Slide 23: Mine Design and Scheduling

    Mine Design and Scheduling 110 Level mining reaching SoW in 2020 Stoping on the four corridors South of Wrench (West Block-B) Infrastructure development on 95 and 93 levels to access the Eastern portion of Phase-1 SoW (Block-A) Start date Jan 2023 Current to Jan 2035

  24. Slide 24: Mine Design and Scheduling

    Mine Design and Scheduling VCR mining Stoping in Phase-2 Stoping in the Eastern portion of Phase-1 SoW (Block-A) Current to Jan 2050

  25. Slide 25: Mine Design and Scheduling

    Mine Design and Scheduling Completion of Phase-2 Completion of Phase-1 SoW (Block – A) Current to Dec 2067

  26. Slide 26: Mine Design and Scheduling

    Mine Design and Scheduling VCR Pillar extraction Retreat mining in original access areas Final Extraction (April 2064)

  27. Slide 27: Reserves

    Reserves Mineral Reserves at a gold price of R265,000/kg Tonnes (Mt) Grade (g/t) Gold (‘000 oz) Dec June June Dec June June Dec June June Classification 2010 2010 2009 2010 2010 2009 2010 2010 2009 CM – Proved 14.9 14.1 15.2 6.5 5.9 5.9 3,113 2,700 2,906 CM – Probable 1.8 3.7 3.7 5.5 4.2 4.2 308 505

  28. Slide 28: Reserves

    Reserves Approximately one third of those of Gold Fields, AngloGold Ashanti Reserves (Moz) 160 120 80 40 0 ______________________ Source: Goldval.com as at September 2010

  29. Slide 29: Existing Mine Infrastructure

    Existing Mine Infrastructure Colour Coding: Red Up Cast. Green Down Cast Twins Main Shaft Gold Rock Handling Capacity South Shaft Twins Ventilation Shaft Metallurgical Plant 1.4km SV 1 SV 2 33 Lvl 50 Level Plugs 48 Lvl SV 3 51 Level Pump Intermediate Pump 49 Lvl Station Stations 50 Lvl 53 Lvl 56 Lvl

  30. Slide 30: Planned Mine Infrastructure – Vent Shaft Deepening

    Planned Mine Infrastructure – Vent Shaft Deepening Headgear A-Frame early lift strategy Completed in May 2011 Rock winder installation progressing to plan – all major components manufactured and delivered to the mine 30

  31. Slide 31: Planned Mine Infrastructure – Mine Shaft Development

    Main Shaft Ventilation Planned Mine Infrastructure – Mine Shaft Development Reef silo’s 100 95 level to 105 level 100 level 100A level 105 level Reef silo’s 105 to 110 level 110 level Settlers & dams 105 to 110 level 110A level Reef silo’s 110 to 110A level 31

  32. Slide 32: Planned Mine Infrastructure – Backfill Infrastructure

    Planned Mine Infrastructure – Backfill Infrastructure Full Plant Tailings – Backfill plant under construction at South Shaft 32

  33. Slide 33: Planned Mine Infrastructure – Tailings Storage Facility

    Planned Mine Infrastructure – Tailings Storage Facility Return Water Dam – lining complete and TSF – tailings deposition to cover the toe drains is in progress both return dams being filled No.1 No.2 Penstock - returning water to fill the return water dam Completed Silt Trap and Neutralisation Plant

  34. Slide 34: Planned Mine Infrastructure – Plant Expansion

    Planned Mine Infrastructure – Plant Expansion 450ktpm downstream processing capacity Leach extension earthworks Leach Extension Civils Leach extension earthworks ThickenerCivils Thickener Civils Thickener earthworks andEarthworks and Earthworks Ball Mill 2 Civils and Earthworks 330ktpm milling capac

  35. Slide 35: Planned Mine Infrastructure – Electrical Infrastructure

    Planned Mine Infrastructure – Electrical Infrastructure Eskom new 132KV overhead supply line 40MVA transformer No.5 Substation extension 35

  36. Slide 36: Enjoy your visit to South Deep

    Enjoy your visit to South Deep

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