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South32 Boosts Sierra Gorda Ore Reserves by 61% to 1.1 Billion Tonnes, Extending Mine Life to 2045

South32 Limited (ASX, LSE, JSE: S32; ADR: SOUHY) has revealed a 61% increase in the Ore Reserve estimate at its Sierra Gorda copper mine in northern Chile, raising total reserves to 1,100 million tonnes as of 31 July 2026. This update, prep…

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