Antofagasta Investor Conference Presentation Deck

2022 Highlights Record safety performance J xxxx 0 Fatalities -35% High Potential Incidents 100% renewable energy Social value creation investment $57m Dividends 59.7cps Net cash costs $1.61/lb Copper production 646.2kt Record tonnage transported 7.1Mt Antofagasta plc | 2023 BMO Global Metals, Mining & Critical Minerals Conference ANTOFAGASTA PLC $2.9bn EBITDA 50% EBITDA margin Net increase in mineral resources 920Mt Los Pelambres Expansion project 93% complete 20.6% Female participation 3

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