Antofagasta Investor Day Presentation Deck

2020: RESILIENCE AND FLEXIBILITY Safety Record year of safety performance No fatal accidents LTIFR¹: 0.86 Copper production 733,900 tonnes In line with guidance Financial results EBITDA: $2,739m EBITDA margin²: 53% EPS3: 54.7 c/share Net cash cost $1.14/lb Below guidance 1 Lost Time Injury Frequency Rate. The number of accidents with lost time during the year per million hours worked 2 EBITDA Margin calculated as EBITDA/Revenue. If Associates and JVs revenue is included EBITDA margin was 50.4% 3 Earnings per share from continuing operations and before exceptional items ANTOFAGASTA PLC

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