South32 Limited (Incorporated in Australia under the Corporations Act 2001 (Cth)) (ACN 093 732 597) ASX / LSE / JSE Share Code: S32; ADR: SOUHY ISIN: AU000000S320 south32.net South32 Limited DAILY BUY-BACK NOTIFICATION The Appendix 3C – Notification of buy-back update announcement (for the daily buy-back notification) lodged on the Australian Securities Exchange and voluntarily disclosed on the Johannesburg Stock Exchange and London Stock Exchange has today been submitted to the National Storage Mechanism and will shortly be available for inspection at https://data.fca.org.uk/#/nsm/nationalstoragemechanism: • South32 Limited – Appendix 3C – Notification of buy-back (updated announcement for daily buy-back notification) About us Our purpose is to make a difference by developing natural resources, improving people’s lives now and for generations to come. We are trusted by our owners and partners to realise the potential of their resources. We produce minerals and metals critical to the world’s energy transition from operations across the Americas, Australia and Southern Africa and we are discovering and responsibly developing our next generation of mines. We aspire to leave a positive legacy and build meaningful relationships with our partners and communities to create brighter futures together. Investor Relations Media Relations Ben Baker Jamie Macdonald T +61 8 9324 9363 T +61 8 9324 9000 M +61 403 763 086 M +61 408 925 140 E Ben.Baker@south32.net E Jamie.Macdonald@south32.net Further information on South32 can be found at www.south32.net. JSE Sponsor: The Standard Bank of South Africa Limited 10 September 2025 Registered Office Level 2, 100 St Georges Terrace, Perth WA 6000, Australia ABN 84 093 732 597 Registered in Australia