South32 Ltd. · ASX:S32

South32 — Corporate Update (March 2025)

22 slides from South32's corporate update, Mar 25, 2025

  1. Slide 1: South32 Worsley Alumina Mine CLC Meeting

    SOUTH32 WORSLEY ALUMINA MINE CLC MEETING 25 March 2025

  2. Slide 2: Agenda

    AGENDA Item Description Presenter 1 Open meeting and note apologies G Cavanagh 2 Acknowledgement of Country South32 Read and accept previous minutes 3 G Cavanagh Review actions and responses Worsley Business Update • South32 Update • Boddington Mine 4 Various • Worsley Mine Development • Environment

  3. Slide 3: Worsley Business Update

    WORSLEY BUSINESS UPDATE o Quarterly Report released December 2024 ▪ Alumina production increased 14% during the quarter capturing the benefit of strong alumina prices ▪ Aluminium production increased 5% ▪ Sierra Gordon increased copper production by 21% ▪ Cannington delivered a 56% increase in payab

  4. Slide 4: Mine & Materials Update

    WORSLEY MINE & MATERIALS UPDATE Safety • Good performance with regards to safety. • Safety Training for all levels of staff (Lead Safely Every Day) continues • Major focus on updating critical control processes looking to make these processes simpler and stronger o critical control training now incl

  5. Slide 5: Mine Enabling Infrastructure Projects

    WORSLEY MINE ENABLING INFRASTRUCTURE PROJECTS • Mine development will see increasing activity around the Lower Hotham Bridge, including the Lower Hotham Underpass project. • Traffic Management will be set up as required on Lower Hotham Road, and key equipment, including one dozer and four scrapers,

  6. Slide 6: Approvals Summary

    WORSLEY APPROVALS SUMMARY WE ARE HERE JANUARY 2021 JANUARY 2022 JUNE > AUGUST 2022 Submission of Submission of EPA Address public Condition Secondary Draft ERD (v2) Final Draft ERD Acceptance and comments and Setting and Approvals and Public Review EPA Assessment Approval Appeals Determination Descr

  7. Slide 7: Approvals Summary

    APPROVALS SUMMARY • State Approval Granted: 20 December 2024 • Federal Approval Granted: 12 February 2025 Boddington CLC Meeting SLIDE 8

  8. Slide 8: Dilyan's Crossing – Update

    DILYAN’S CROSSING – UPDATE • Geotechnical investigations ⎯ 2020 Stage 1 Geotechnical investigations (surrounding paddocks) > Approved Program of works (DEMIRS) > S41 notification (DWER/EPA-S) ⎯ 2022 Stage 2 Geotechnical investigations > Approved Program of works (DEMIRS) > S41 notification (DWER/EPA

  9. Slide 9: Other Secondary Approvals – Wider Proposal Area

    OTHER* SECONDARY APPROVALS – WIDER PROPOSAL AREA • Secondary approvals are approvals required from Government Agencies that will support the implementation of the Revised Proposal, examples of the approvals are outlined below. • Submitted (Pre Sept) • Works approval – Mobile Crushers & Oil water sep

  10. Slide 10: Environmental Management Plans

    ENVIRONMENTAL MANAGEMENT PLANS • Environmental Management Plans – Approved prior to ground disturbing works commencing (MS1237 Cond: C1-1) • Water Management Plan • Local Offset Environmental Management Plan • Construction Environmental Management Plan • Flora & Vegetation Environmental Management P

  11. Slide 11: Reporting

    REPORTING • Reporting is required in accordance with the Compliance Assessment Report (MS1237 Condition D2-1) • Publicly available information: • Extended Mining areas: • Condition B4-5: Scope of Biodiversity Related Investigations Document • Condition B4-7: Biodiversity-related Investigations Repor

  12. Slide 12: Aluminium Stewardship Initiative

    ALUMINIUM STEWARDSHIP INITIATIVE • BIODIVERSITY & ECOSYSTEM SERVICES ASI Performance Standard: 8.1 a & b The entity shall: • a. Assess the risk to and potential impacts on Biodiversity & Ecosystem Services • b. Undertake a systematic review, in consultation with and with the participation of Affecte

  13. Slide 13: Aluminium Stewardship Initiative

    ALUMINIUM STEWARDSHIP INITIATIVE • Affected Populations ASI Performance Standard: 9.1c • A mapping of Affected Populations and Organisations to ensure Affected Populations and Organisations are: ⎯ I. Engaged by the Entity ⎯ II. Consulted about operational activities and potential significant Human R

  14. Slide 14: Environment Update

    WORSLEY ENVIRONMENT UPDATE Rehab • Rehabilitation seeding has commenced for the 2025 rehabilitation, chasing 300+ ha. • Planned use of available forest residue to reduce burning. Removal of timber harvesting from State Forest areas has triggered improved recovery from forest residue without impactin

  15. Slide 15: Environment Update

    WORSLEY ENVIRONMENT UPDATE Cockatoo Surveys • Large scale cockatoo habitat surveys have been ongoing since 2024 by a Fauna based ecological consultant. The process has been refined to provide the most relevant data for further inspections. Initial ground based pre-clearance surveys have currently id

  16. Slide 16: Environment Update

    WORSLEY ENVIRONMENT UPDATE • Research • The ongoing PhD regarding fauna sampling using eDNA, had identified the use of an artificial hollow in southern Saddleback 20 11 rehabilitation by a Red Tailed Phascogale. The hollow had also identified use by Brush Tailed Phascogales and Pygmy possums. Mardos

  17. Slide 17: Environment Update

    WORSLEY ENVIRONMENT UPDATE • BIODIVERSITY OFFSET • Hog Hollows • Initial monitoring, some indication of fauna investigating hollows • Mammal dens & artificial habitats • Monitoring shows an echidna and goanna investigating dens • Feral Animal Control • 27 pigs, 5 foxes and 1 cat removed with Gibbs t

  18. Slide 18: Community Update

    WORSLEY COMMUNITY UPDATE Community Investment Community Complaints • 15 complaints FY25, Q2 (8 complaints in Q1) • Community Grants February 2025 Round Outcomes • $84 024 funded • 14 complaints related to BBM • 59 applicants, 23 funded (listed by LGA areas) o 5 complaints related to dust o Boddingto

  19. Slide 19: Community Update

    WORSLEY COMMUNITY UPDATE News Story - South32 Worsley Alumina Partners with the Shire of Boddington to Deliver $4.5 Million in Community Initiatives » Shire of Boddington SLIDE 20

  20. Slide 20: Community Liaison Committee

    WORSLEY COMMUNITY LIAISON COMMITTEE 2 Applicants to join the committee Debbie Thorne and Ian McPherson Membership to the CLC committee will be invited from Worsley Alumina - at least 2 representatives (permanent membership) Local Government - at least 1 representative from Boddington, Williams, Wand

  21. Slide 21: Meeting Schedule 2025

    MEETING SCHEDULE 2025 Proposed meeting dates for 2025: • 20 May - Williams • 19 August - Quindanning • 18 November - Boddington Boddington CLC Meeting SLIDE 22

  22. Slide 22: South32

    SOUTH32

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