Lundin Mining Corporation has declared a regular quarterly dividend of CAD 0.0275 per share, payable on June 25, 2026, to shareholders of record at the close of business on June 5, 2026. This dividend qualifies as an 'eligible dividend' for Canadian income tax purposes. The declaration, timing, amount, and payment of future dividends remain at the discretion of the Board of Directors.

Dividends on shares traded on the Toronto Stock Exchange ("TSX") will be paid in CAD on June 25, 2026. Dividends on shares traded on Nasdaq Stockholm will be paid in Swedish kronor in accordance with Euroclear principles on June 30, 2026. To execute the payment of the dividend, a temporary administrative cross-border transfer closure will be applied by Euroclear from June 3, 2026, up to and including June 5, 2026, during which period shares of the Company cannot be transferred between TSX and Nasdaq Stockholm.