Antofagasta Results Presentation Deck

1 2 EBITDA EBITDA¹ and margin² 2019 FY versus 2020 FY $ million and % 49% $2,439m 2019 FY EBITDA (208) Sales volumes and TC/RCS 383 Realised prices 133 Mining costs $300m (+12%) 26 Exploration & evaluation 7 Corporate costs Results of continuing operations only and includes EBITDA from Associates and JVs Calculated as EBITDA/Group revenue. If Associates and JVs' revenue is included the EBITDA margin was 50.4% in 2020 and 45.3% in 2019 (44) Associates & JVs 3 Transport division 53% $2,739m 2020 FY EBITDA ANTOFAGASTA PLC 14

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