Antofagasta Investor Conference 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 total dividend 100% of underlying net earnings Macro Perspective Decision Factors Financial Position Value Optimisation Climate Resilience Dividend, capex & pay-out ratio $ million, % 65% 873 332 2018 35% 1,079 Antofagasta plc | 2023 BMO Global Metals, Mining & Critical Minerals Conference 176 2019 100% 1,307 539 2020 Total dividends Capex 100% 1,778 1,405 2021 ANTOFAGASTA PLC Pay-out ratio 100% 1,879 80% average pay-out ratio Last 5 years 588 2022 15

View entire presentation