South32 Limited Regulatory News (S32)

5 September 2025

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.

Further information on South32 can be found at www.south32.net.

JSE Sponsor: The Standard Bank of South Africa Limited 5 September 2025