Antofagasta Investor Conference Presentation Deck

Developing mining for a better future Our priorities for 2022 and beyond ● Responsible and reliable copper producer Zero fatalities - Committed to keeping our people and communities safe and healthy while creating further social value Embedding climate change and sustainability strategy across all decision making and update climate change targets Maintaining operating resilience and flexibility • Unlocking embedded growth Continuous productivity improvements to optimise margins Advancing our growth projects and innovation portfolio Generating returns to shareholders By delivering value to all stakeholders Antofagasta plc | 2022 BMO Global Metals & Mining Conference 21

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