NEWS RELEASE, 15 FEBRUARY 2024

Antofagasta 2023 full Year Results

PRESENTATION AND Conference call Details

Antofagasta plc (the Company) will release its results for the full year ended 31 December 2023 on Tuesday 20 February 2024.

Announcement and presentation slides

The 2023 Full Year Results announcement and presentation slides will be available on the Company's website www.antofagasta.co.uk from 7:00 am (UK time) on 20 February 2024. A transcript of the presentation will be made available on the Company's website following the call.

Presentation and Q&A

On behalf of the Company, we invite you to participate in a hybrid meeting hosted by Iván Arriagada - Chief Executive Officer, Mauricio Ortiz - Chief Financial Officer, and René Aguilar - Vice President of Corporate Affairs and Sustainability, which will be open to all investors.

Date                            ​20 February 2024

Time                           9:00 am (UK time)

Venue                        Church House Westminster, Dean's Yard, London SW1P 3NZ

Online link                Please join the conference online here.

Meeting ID                9629 349 0666

Passcode                   112180

For those investors who are not able to join the conference either in-person or online, you can join by telephone using the dial-in details here. You will be able to hear the presentation, the Q&A, and ask questions.

Video and telephone participants will have to register before they can participate in the call, therefore please aim to leave enough time to do this before the call begins.

Register on our website to receive our email alerts at the following address: https://www.antofagasta.co.uk/investors/news/email-alerts/