Sierra gorda transaction update 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 25 November 2021 SIERRA GORDA TRANSACTION UPDATE South32 Limited (ASX, LSE, JSE: S32; ADR: SOUHY) (South32) advises that KGHM Polska Miedz (KGHM) has not exercised its pre- emptive rights to increase its shareholding in the Sierra Gorda copper mine in Chile (Sierra Gorda). On 14 October 2021 we announced we had entered into binding conditional agreements with Sumitomo Metal Mining and Sumitomo Corporation (collectively Sumitomo) to acquire a 45% interest in Sierra Gorda (the Transaction)1. Completion of the transaction is expected in early calendar year 2022 subject to the satisfaction of the remaining conditions. About us South32 is a globally diversified mining and metals company. 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 bauxite, alumina, aluminium, metallurgical coal, manganese, nickel, silver, lead and zinc at our operations in Australia, Southern Africa and South America. With a focus on growing our base metals exposure, we also have two development options in North America and several partnerships with junior explorers around the world. Investor Relations Alex Volante Tom Gallop T +61 8 9324 9029 T +61 8 9324 9030 M +61 403 328 408 M +61 439 353 948 E Alex.Volante@south32.net E Tom.Gallop@south32.net Media Relations Miles Godfrey Jenny White M +61 415 325 906 T +44 20 7798 1773 E Miles.Godfrey@south32.net M +44 7900 046 758 E Jenny.White@south32.net Further information on South32 can be found at www.south32.net. Approved for release by Graham Kerr, Chief Executive Officer JSE Sponsor: UBS South Africa (Pty) Ltd 25 November 2021 1 Refer to market release “South32 to acquire a 45% interest in the Sierra Gorda copper mine” dated 14 October 2021. Registered Office Level 35 108 St Georges Terrace Perth WA 6000 Australia ABN 84 093 732 597 Registered in Australia Date: 25-11-2021 08:30:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.