Lundin Mining Announces Updated Share Capital and Provides Update on Share Buybacks

Corporate Office

1055 Dunsmuir Street

Suite 2800, Bentall IV

Vancouver, BC V7X 1L2

Phone: +1 604 689 7842

lundinmining.com

NEWS RELEASE

Lundin Mining Announces Updated Share Capital and Provides Update on Share

Buybacks

Vancouver, BC, May 30, 20 25 (TSX: LUN; Nasdaq Stockholm: LUMI) Lundin Mining Corporation (“Lundin

Mining” or the “Company”) reports the following updated share capital and voting rights, in accordance with the

Swedish Financial Instruments Trading Act.

The number of issued and outstanding shares of the Company decreased by 823,459 to 855,818,634 common

shares with voting rights as of May 30, 2025. The decrease in the number of issued and outstanding shares from

April 30, 2025 to date is the result of share buybacks completed under the normal course issuer bid (“NCIB”), offset

by the exercise of employee stock options and the vesting of employee share units.

Normal Course Issuer Bid

Under the Company’s shareholder distribution policy, the Company is committed to allocating up to US$150 million

in annual share buybacks through the NCIB program. So far during 2025, Lundin Mining has acquired 12,629,000

common shares at a cost of approximately US$104 million.

About Lundin Mining

Lundin Mining is a diversified base metals mining company with operations or projects in Argentina, Brazil, Chile,

and the United States of America, primarily producing copper, gold and nickel.

The information in this release is subject to the disclosure requirements of Lundin Mining under the Swedish

Financial Instruments Trading Act. The information was submitted for publication, through the agency of the

contact persons set out below on May 30, 2025 at 16:00 Pacific Time.

For further information, please contact:

Stephen Williams, Vice President, Investor Relations: +1 604 806 3074

Robert Eriksson, Investor Relations Sweden: +46 8 440 54 50