Company Announcements

20 March 2024

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

AUSTRALIA MANGANESE UPDATE

South32 Limited (ASX / LSE / JSE: S32; ADR: SOUHY) (South32) provides the following update on operations at Groote Eylandt Mining Company Pty Ltd (GEMCO).

Operations at GEMCO remain temporarily suspended due to the impacts of Tropical Cyclone Megan. The safety of our people and the community on Groote Eylandt remains our highest priority. Importantly, our workforce is safe and there have been no recordable injuries to personnel at the operations.

As weather conditions have eased on the Eylandt, access to key infrastructure has been restored to enable an initial assessment of impact.

Initial assessments have identified flooding in the mining pits, as well as significant damage to a critical haul road bridge that connects the northern pits of the Western Leases mining area and the processing plant. Significant structural damage to the wharf and port infrastructure has now also been confirmed.

Further assessment of the full impact of the damage is ongoing and will inform recovery plans, with a view to returning to safe operations as soon possible. Alternative shipping arrangements are also being evaluated.

While we complete this work, we are withdrawing guidance for Australia Manganese and will provide a further update in our March 2024 Quarterly Report.

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 commodities including bauxite, alumina, aluminium, copper, silver, lead, zinc, nickel, metallurgical coal and manganese from our operations in Australia, Southern Africa and South America. We also have a portfolio of high-quality development projects and options, and exploration prospects, consistent with our strategy to reshape our portfolio toward commodities that are critical for a low-carbon future.

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

Approved for release to the market by Claire Tolcon, Company Secretary
JSE Sponsor: The Standard Bank of South Africa Limited
20 March 2024