Antofagasta plc will release its results for the full year ended 31 December 2022 on Tuesday 21 February 2023.

Announcement

The 2022 Full Year Results announcement and presentation will be available on our website www.antofagasta.co.uk from 7:00 am (GMT) on the 21 February 2023. 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 Rene Aguilar - Vice President of Corporate Affairs and Sustainability which will be open to all investors.

Date 21 February 2023

Time 10:30 am (GMT)

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

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

A transcript of the presentation will be available on the Company's website later on 21 February.

Investors - London

Andrew Lindsay alindsay@antofagasta.co.uk

Rosario Orchard rorchard@antofagasta.co.uk

Telephone +44 20 7808 0988

Media - London

Carole Cable antofagasta@brunswickgroup.com

Telephone +44 20 7404 5959

Media - Santiago

Pablo Orozco porozco@aminerals.cl

Carolina Pica cpica@aminerals.cl

Telephone +56 2 2798 7000

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