VANCOUVER, BC, March 31, 2026 /CNW/ – (TSX: LUN) (Nasdaq Stockholm: LUMI) Lundin Mining Corporation ("Lundin Mining" or the "Company") ("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 increased by 692,674 to 855,359,839 common shares with voting rights as of March 31, 2026. The increase in the number of issued and outstanding shares from February 27, 2026 to date is the result of the exercise of employee stock options or the vesting of employee share units, offset by share buybacks completed under the normal course issuer bid ("NCIB").

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 2026, Lundin Mining has acquired 1,447,194 common shares at a cost of approximately US$40 million.

About Lundin Mining

Lundin Mining is a Canadian mining company headquartered in Vancouver, Canada with three operating mines in Brazil and Chile. We produce commodities that support modern infrastructure and electrification. Our strategic vision is to become a top ten global copper producer. To get there, we are executing a clear growth strategy, which includes advancing one of the world's largest copper, gold, and silver projects in the Vicuña District on the border of Argentina and Chile, where we hold a 50% interest. Lundin Mining has a proven track record of value creation through resource growth, operational excellence, and responsible development. The Company's shares trade on the Toronto Stock Exchange (LUN) and Nasdaq Stockholm (LUMI). Learn more at www.lundinmining.com.

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 March 31, 2026 at 6:00 Pacific Time.

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