Gold Fields Limited · JSE:GFI

Gold Fields — Technical Presentation (November 2022)

31 slides from Gold Fields's technical presentation, November 2022

  1. Slide 1: St Ives Gold Mine

    St Ives Gold Mine A/General Manager Mark Glazebrook 1

  2. Slide 2: Forward Looking Statements

    Forward Looking Statements Certain statements in this document constitute “forward looking statements” within the meaning of Section 27A of the US Securities Act of 1933 and Section 21E of the US Securities Exchange Act of 1934. In particular, the forward-looking statements in this document include

  3. Slide 3: Introducing the team

    Introducing the team Mark Glazebrook Sara Young Warren Larfield Michael Fitzgerald Bart Jesionek General Manager (Acting) Manager: Mining (Acting) Manager: Processing Manager: Geology Unit Manager: Technicall Services Lisa Papandreas Brian Rowatt Matthew Allen Elise Simpson Lead: People and Unit Man

  4. Slide 4: St Ives – cornerstone of the Australian portfolio

    St Ives – cornerstone of the Australian portfolio • Mining: A 40 year history of consistent production from 66 open pit and underground mines since 1980, with production in excess of 9.5Moz since Gold Fields took ownership in 2001 • Production: Multiple mining fronts – Invincible underground complex

  5. Slide 5: History of St Ives

    History of St Ives 1897 First Gold discovered at Red Hill Mining ceased in the 1930s until Western Mining Corp discovered nickel 1965 and begun gold exploration in 1970s 1980 Victory Gold Mine discovered Gold Fields acquired St Ives from WMC 2001 New Lefroy Mill commissioned, Athena, Hamlet and Nept

  6. Slide 6: Overview

    Overview • 75km south of Kalgoorlie • Site extends from 5 – 25km SSW of Kambalda • Landholding – 184,317 hectares Gold Fields | Analyst & Investor Site Visit | November 2022

  7. Slide 7: Directly employed and contracted workforce

    Directly employed and contracted workforce of 900 Gold Fields: 500 people: 80% residential / 20% FIFO Contractors: 20% residential / 80% FIFO. Diversity of our workforce represents 26 nations Gold Fields | Analyst & Investor Site Visit | November 2022 7

  8. Slide 8: Maximising the potential of our assets

    Maximising the potential of our assets 8

  9. Slide 9: Mining – Invincible Underground Complex

    Mining – Invincible Underground Complex • 2 Underground mines (Fenton/Deeps & South), accessed via 2 portals from the Invincible pit • Longhole open stoping with pastefill • Current vertical depth of 540m • Good ground conditions • Pastefill: Separate paste plants for Fenton/Deeps and Invincible Sou

  10. Slide 10: Mining - Hamlet North Underground

    Mining - Hamlet North Underground • Extension of the Hamlet (‘classic’)/ Athena Office mining centre • Single portal from boxcut with Hamlet North decline driving off the Hamlet decline MOP • Longhole open stoping Boxcut/ • Current Vertical Depth of 575m Portal • Pastefill • Owner Miner Production /

  11. Slide 11: Mining – Neptune Open Pit

    Mining – Neptune Open Pit • Targeting Palaeochannel, Supergene and fresh ore • 30-60m of lake clay/ sediment material • Current Vertical Depth of 47m (Stg7), with a design depth of 90m • Backfilling waste into Mars Open pit (~2.9 km from Neptune) • In pit backfill into Nep Stage 5 (~1.4km from Nep S

  12. Slide 12: Growing the value and quality of our portfolio

    Growing the value and quality of our portfolio 12

  13. Slide 13: Growing the value and quality of our portfolio

    Growing the value and quality of our portfolio Aerial Photograph Magnetics Gravity Gold Fields | Analyst & Investor Site Visit | November 2022 13

  14. Slide 14: Growing the value and quality of our portfolio

    Growing the value and quality of our portfolio 14 Gold Fields | Analyst & Investor Site Visit | November 2022

  15. Slide 15: Tenure and exploration areas

    Tenure and exploration areas Highly prospective tenements with significant metal endowment (15.1Moz Mined and 4.8Moz Resources) Gold Fields | Analyst & Investor Site Visit | November 2022

  16. Slide 16: Deposit size and distribution

    Deposit size and distribution • More than just a single mine • 49 Open Pits to date • 15 underground mines to date Pistol Club OP • Major gold camps on lease Santa Ana OP Swiftsure OP • Junction Area ~2.1 Moz • Argo- Athena- Hamlet Trinidad OP ~3.7 Moz Invincible UG Neptune OP • Greater Revenge Area

  17. Slide 17: Brownfields success at St Ives: Invincible continues to expand

    Brownfields success at St Ives: Invincible continues to expand 6539700N 6541300N 6542800N 6544300N 6545800N N Invincible North Invincible Invincible South S Dolerite Dyke 0m RL Invincible Footwall Drake -750m RL open Invincible Invincible South Mudstone Invincible Deeps Extensions Footwall target Mu

  18. Slide 18: Growing the value and quality of our portfolio

    Growing the value and quality of our portfolio Invincible Hamlet North Gold Fields | Analyst & Investor Site Visit | November 2022 18

  19. Slide 19: Gold Fields | Analyst & Investor Site Visit | November 2022

    Gold Fields | Analyst & Investor Site Visit | November 2022 19

  20. Slide 20: Building on our leading commitment to ESG

    Building on our leading commitment to ESG 20

  21. Slide 21: Decarbonisation | Renewable Energy Microgrid Project

    Decarbonisation | Renewable Energy Microgrid Project Targeting 85% renewable energy fraction Proposed configuration • 50 MW solar farm • Up to 11 wind turbines (44-60 MW) • 25 MW grid stabilizing battery • 80-100 MWh energy storage • 50 MVA synchronous condenser • 30 MW backup diesel power station •

  22. Slide 22: Decarbonisation | Fleet electrification

    Decarbonisation | Fleet electrification Gold Fields | Analyst & Investor Site Visit | November 2022 22

  23. Slide 23: Tailings Storage Facilities management

    Tailings Storage Facilities management Summary Type Height Status TSF 1 Upstream 18 Inactive TSF 2 Upstream 36 Inactive TSF 3 Upstream 25 Inactive TSF 4 Upstream 14.5 Inactive North In-pit - Inactive Orchin Leviathan In-pit - Active Gold Fields | Analyst & Investor Site Visit | November 2022 23

  24. Slide 24: Tailings closure and management plans

    • TSF 1-3 closure underway • North Orchin closure scoping study 2023 • TSF 4 – tailings remining for paste backfill 2023 • Leviathan capacity adequate to 2027 • Other licensed smaller pits to be used for LoM capacity • Long term tailings management options study planned for 2023 Gold Fields | Analys

  25. Slide 25: Safety performance and programmes

    • Investigation into recent tragic fatality ongoing • TRIFR (12MMA) significantly reduced to 4.5 • Supported by increase in TOPS and Take 5 • Key safety programmes – Vital Behaviours and Courageous Safety Leadership Gold Fields | Analyst & Investor Site Visit | November 2022 • Strong engagement from

  26. Slide 26: Key relationships with our Traditional Owners

    • Key relationships with our Traditional Owners – the Ngadju and Marlinyu Ghoorlie People • Focus on Aboriginal cultural heritage management, employment and procurement opportunities Gold Fields | Analyst & Investor Site Visit | November 2022

  27. Slide 27: Strong support for Kambalda and Kalgoorlie communities

    • Strong support for Kambalda and Kalgoorlie communities • Meals on wheels – Shire of Coolgardie • Salvation Army Drive for Life program • Football West Gold Fields Regional Development Officer Gold Fields | Analyst & Investor Site Visit | November 2022

  28. Slide 28: Key projects

    Key projects 28

  29. Slide 29: Accommodation camp upgrade and expansion

    Accommodation camp upgrade and expansion • Consolidation and expansion of accommodation facilities – additional 400 rooms • Improved fitness and leisure facilities • Focus on communications and security

  30. Slide 30: Invincible – Strategic investment in infrastructure

    Invincible – Strategic investment in infrastructure • ~2,500m of ventilation rising committed to provide LoM ventilation • Independent 11kV power supply to Invincible South • Upgraded surface workshop to meet operational demand Gold Fields | Analyst & Investor Site Visit | November 2022 30

  31. Slide 31: THANK YOU

    THANK YOU Questions? 31

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