Antofagasta Results Presentation Deck

Capital allocation framework Creating sustainable value & shareholder returns over the long term Operating Cash Flow Sustaining Capex & Mine Development Committed Dividends (35% pay-out) Strong Balance Sheet Growth Capex Excess Cash Dividend $588 million dividends 100% of underlying net earnings Macro Perspective Decision Factors Financial Position Value Optimisation Climate Resilience Antofagasta plc | 2022 Full Year Results Dividend, capex & pay-out ratio $ million, % 65% 873 332 2018 35% 1,079 176 2019 100% 1,307 539 2020 100% 1,778 1,405 2021 ANTOFAGASTA PLC Total dividends Capex Pay-out ratio 80% average pay-out ratio Last 5 years 100% 1,879 588 2022 16

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