Antofagasta Results Presentation Deck

Developing mining for a better future Looking forward into H2 2023 ● ● ● ● ● Safety first culture: Continue to prioritise strong safety performance. Deliver on growth projects: Commission Los Pelambres' desalination plant and 4th concentrator line. Deliver guidance: Quarter-on-quarter growth in production in H2. Maintain strong cost control: Deliver further savings and productivity improvements. Centinela Second Concentrator: Submit updated studies for Board review. Continue emissions reduction journey: Developing new targets after achieving 30% reduction target. Image: Esperanza Sur at Centinela, northern Chile.

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