Antofagasta Results Presentation Deck

Balance sheet Net cash / (debt) and Net debt/EBITDA ratio $ million and times 1 2 $312m (0.15x) ratio ¹1 $(82)m Net cash Net cash (debt) (debt) - ex sub debt 31 Dec 2020 31 Dec 2020² 2,284 EBITDA from subsidiaries 177 Working capital Net debt/EBITDA ratio Subordinated debt: $373 million end June 2021, $394 million end 2020 (348) Tax +$783m (782) (27) Capex Net interest (68) Other non- cash movements 65 Dividends from associates (518) Dividends Net cash $701m Net cash (debt) 30 Jun 2021 ANTOFAGASTA PLC $1,074m Net cash (debt) - ex sub debt 30 Jun 2021² 15

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