HY 2023 Results and Growth Prospects

Finding better ways to provide the materials the world needs Growing our North American aluminium business For personal use only 20000 Kg AP60 aluminium smelter¹ investing $1.1bn 3742 Casthouse expansions Arvida, Alma Matalco joint venture Launching into recycled aluminium supply 1AP60 technology generates approximately 1.6 tonnes of CO2e per tonne of aluminium produced, compared to approximately 3.2 tonnes of CO2e per tonne of aluminium for the Arvida smelter's current technology, and over 12 tonnes of CO2e per tonne of aluminium for the industry average Rio Tinto ©2023, Rio Tinto, All Rights Reserved 22

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