First Quantum Provides Notice of Third Quarter 2023 Results

NEWS RELEASE

23-27

September 25, 2023

www.first-quantum.com

FIRST QUANTUM PROVIDES NOTICE OF THIRD QUARTER 2023 RESULTS

Toronto, Ontario (September 25, 2023) - First Quantum Minerals Ltd. (“First Quantum” or “the Company”) (TSX:

FM) will release third quarter 2023 financial and operating results on Tuesday, October 24, 2023 after the close of

the Toronto Stock Exchange. The Company will host a conference call and webcast to discuss the results on

Wednesday, October 25, 2023 at 9:00 am (ET).

Conference call and webcast details:

Toll-free North America: 1-800-319-4610

Toll-free International: +1-604-638-5340

Webcast: Direct link or on our website

A replay of the webcast will be available on the First Quantum website.

For further information, visit our website at www.first-quantum.com or contact:

Bonita To, Director, Investor Relations

(416) 361-6400 Toll-free: 1 (888) 688-6577

E-Mail: [email protected]