Australia Manganese Update

18 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) advises that operations at Groote Eylandt Mining Company Pty Ltd (GEMCO) have been temporarily suspended due to Tropical Cyclone Megan.

The safety of our people and the community on Groote Eylandt is our priority. Severe weather conditions continue to impact the Eylandt and we are closely monitoring the situation.

Initial inspections indicate the cyclone has caused structural damage to the wharf. The full impact of the damage and subsequent disruption to production and sales volumes will be assessed when access to the port and other infrastructure is restored.

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 SecretaryJSE Sponsor: The Standard Bank of South Africa Limited18 March 2024