Mr. Stephen Williams reports

LUNDIN MINING ANNOUNCES AN UPDATE REGARDING THE 2017 CLASS ACTION

Lundin Mining Corp. has received a ruling from its appeal to the Supreme Court of Canada. The ruling upholds the 2023 Ontario Court of Appeal decision allowing a proposed securities class action to be commenced relating to the timing of disclosure of a 2017 pit wall instability and rockslide at the Candelaria mine in Chile. The certified class action can now proceed before the Ontario Superior Court of Justice. There has been no decision on the merits of the case, and the company intends to vigorously defend the action.

Background

Lundin Mining disclosed the pit wall instability and rockslide in its normal course operational update to investors on Nov. 29, 2017. The claim alleges that these events should have been disclosed earlier. The decision regarding leave to proceed centered on the distinction between a material fact and a material change under the Ontario Securities Act.

About Lundin Mining Corp.

Lundin Mining is a diversified Canadian base metals mining company with projects or operations in Argentina, Brazil, Chile and the United States, and primarily producing copper, gold and nickel.

We seek Safe Harbor.