Antofagasta Results Presentation Deck

Capital allocation framework Consistent shareholder returns policy CONSISTENT APPROACH TO CAPITAL ALLOCATION OPERATING CASH FLOW SUSTAINING CAPEX & MINE DEVELOPMENT COMMITTED DIVIDENDS (35% PAY-OUT) FINANCIAL POSITION STRONG BALANCE SHEET DECISION FACTORS MACRO PERSPECTIVE VALUE OPTIMISATION CLIMATE RESILIENCE GROWTH CAPEX EXCESS CASH DIVIDEND CAPITAL OUTFLOW CAPITAL OUTFLOW INVESTMENTS AND SHAREHOLDER RETURNS U$B Capex 0.9 2018 35% Interim Dividend 2018 1.0 Antofagasta plc | 2023 Half Year Results 2019 35% 2019 1.3 2020 35% 2020 1.8 2021 35% 2021 1.9 2022 35% 2022 1.9 2023E¹ 35% 2023 "CREATING SUSTAINABLE VALUE AND SHAREHOLDER RETURNS OVER THE LONG TERM" ANTOFAGASTA PLC 15

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