PUBLICATION OF 2024 ANNUAL REPORTING SUITE AND 2025 NOTICE OF ANNUAL GENERAL MEETING

Antofagasta plc ("Antofagasta" or the "Company") has today published the following reports: the 2024 Annual Report and Accounts, the 2025 Notice of Annual General Meeting, the Mining Division's 2024 Sustainability Report and the Company's 2024 Modern Slavery Statement.

2024 Annual Report and Accounts and 2025 Notice of Annual General Meeting

In compliance with LR 6.4.1, the Company has submitted the following documents to the Financial Conduct Authority by uploading them to the National Storage Mechanism:

·    2024 Annual Report and Accounts

·    2025 Notice of Annual General Meeting

·    Form of Proxy for Ordinary Shareholders for Annual General Meeting

·    Form of Proxy for Preference Shareholders for Annual General Meeting

·    Letter to Shareholders regarding Electronic Communications

These documents will shortly be available for inspection in unedited full text at the National Storage Mechanism at data.fca.org.uk/#/nsm/nationalstoragemechanism.

The 2024 Annual Report and Accounts and 2025 Notice of Annual General Meeting are also available to view on the Group's website at www.antofagasta.co.uk.

This announcement is made in accordance with DTR 6.3.5R(1A).

Arrangements for 2025 Annual General Meeting

The Annual General Meeting will be held in-person at Church House Westminster, Dean's Yard, London SW1P 3NZ at 10:00am on Thursday 8 May 2025. The formal notice of the Annual General Meeting and resolutions to be proposed are set out in the Notice of Annual General Meeting.

Mining Division's 2024 Sustainability Report and Databook

The Mining Division's 2024 Sustainability Report and associated Databook, have also been published today and are available to view on the Company's website at www.antofagasta.co.uk .

Modern Slavery Statement

In compliance with section 54 of the UK Modern Slavery Act 2015, the Company's Modern Slavery Statement has been published today and is available to view on the Company's website at www.antofagasta.co.uk .

Investors - London                                                                                Media - London

Rosario Orchard                      rorchard@antofagasta.co.uk            Carole Cable             antofagasta@brunswickgroup.com

Robert Simmons                     rsimmons@antofagasta.co.uk          Telephone                  +44 20 7404 5959

Telephone                                +44 20 7808 0988                                  

                                                                                                                  Media - Santiago

                                                                                                                  Pablo Orozco            porozco@aminerals.cl

                                                                                                                  Carolina Pica            cpica@aminerals.cl

                                                                                                                  Telephone                 +56 2 2798 7000

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Cautionary Statement

This announcement may contain certain forward-looking statements. All statements other than statements of historical fact are, or may be deemed to be, forward-looking statements.

These forward-looking statements are based upon current expectations and assumptions regarding anticipated developments and other factors affecting the Group. They are not historical facts, nor are they guarantees of future performance or outcomes. Readers should not place undue reliance on forward-looking statements.

Forward-looking statements involve known and unknown risks, uncertainties, assumptions and other factors that are beyond the Group's control. Given these risks, uncertainties and assumptions, actual results could differ materially from any future results expressed or implied by these forward-looking statements.

These forward-looking statements speak only as of the date of this document. Except as required by any applicable law or regulation, the Group expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in the Group's expectations with regard thereto or any change in events, conditions, or circumstances on which any such statement is based. No assurance can be given that the forward-looking statements in this document will be realised. Past performance cannot be relied on as a guide to future performance.

This document does not contain or comprise profit forecasts, investment, accounting, legal, regulatory or tax advice nor is it an invitation for you to enter into any transaction. You are advised to exercise your own independent judgement (with the advice of your professional advisers as necessary) with respect to the risks and consequences of any matter contained herein.