Lundin Mining to Option Ni-Cu-PGM Exploration Properties from Talon Metals Corp.

Boulderdash Properties Boulderdash Properties The Boulderdash target is located approximately 12 kilometres northwest of Lundin Mining's Eagle Mine inMichigan, the only operating nickel mine in the U.S. The maiden drill hole at Boulderdash announced last year onOctober 24, 2024(see Talon release"Talon Metals Makes New Copper-Nickel Discovery inMichigan " ) intercepted99.92 mgrading 0.41% nickel and 0.35% copper starting at9.14 mdepth, more recent drilling has intercepted...

VANCOUVER, BC, 05/03/2025 (informazione.news - comunicati stampa - industria)

The Boulderdash target is located approximately 12 kilometres northwest of Lundin Mining's Eagle Mine in Michigan , the only operating nickel mine in the U.S. The maiden drill hole at Boulderdash announced last year on October 24, 2024 (see Talon release "Talon Metals Makes New Copper-Nickel Discovery in Michigan ") intercepted 99.92 m grading 0.41% nickel and 0.35% copper starting at 9.14 m depth, more recent drilling has intercepted 2.35 m of nickel-copper massive sulphide mineralization assaying 2.33% nickel and 2.95% copper (press release dated February 27, 2025 "Talon Metals Reports More Drilling Success and Assays From its Michigan Boulderdash Discovery"). As part of the option agreement Lundin Mining will fund an initial 10,000 m drill program to follow up on recent drill results.

Lundin Mining is a diversified Canadian base metals mining company with operations or projects in Argentina , Brazil , Chile , and the United States of America , primarily producing copper, gold and nickel. In December 2024 the Company announced the sale of its European assets to Boliden. The transaction is expected to close in mid-2025 subject to customary conditions and regulatory approvals.

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 5, 2025 at 14:30 Pacific Time .

The scientific and technical information in this press release has been prepared in accordance with the disclosure standards of National Instrument 43-101 ("NI 43-101") and has been reviewed by Cole Moody , PGeo., Director, Resource Geology, a "Qualified Person" under NI 43-101. Mr. Moody has verified the data disclosed in this release and no limitations were imposed on his verification process.

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

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