Antofagasta Results Presentation Deck

1 Safety and health Record year for safety 217 1.01 2019 Fatalities 86 0.86 2020 65 1.34 1 Lost Time Injury Frequency Rate (LTIFR) LTIFR: the number of lost time injuries per 1 million hours worked 1 2021 1 Mining division LTIFR improved 32% to 0.76 42 0.84 2022 High Potential Incidents (HPI) Our job safety analysis and critical control management are integrated into our operational model Antofagasta plc | 2022 Full Year Results Zero fatalities since July 2021 ANTOFAGASTA PLC High Potential Incidents decreased by 35%

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