

Twenty-Three Kilometres of Veins in Argentina: Golden Goose Lines Up the Drill PR Newswire VANCOUVER, BC, June 5

HIGHLIGHTS Outstanding infill drilling results continue to establish the scale, grade and continuity of the800m high-grade core zone at the Green Bay Copper-Gold Project (Core Zone); Post-quarter results of 70. 8m @ 4. 0% CuEq and 53. 3m @ 4. 1% CuEq from hole MUG25-096 and MUG25-209 respectively (see ASX announcement dated 8 April 2026) The Green Bay Mineral Resource Estimate (MRE) stands at 50.

Special ParticipationGovernment of QuebecPlatinum PartnersAgnico Eagle, GLENCORE Canada, National Bank Capital Markets, Ventum Capital MarketsGold PartnersAltitude Capital Partners, Invest Yukon,

FireFly has agreed to sell its Ontario Gold Assets, comprising its 70% interest in the Pickle Crow Project and 100% of the Sioux Lookout Project to ASX-listed Bellavista Resources Ltd (ASX: BVR) for total scrip consideration with a deemed aggregate value of up to A$86.

HIGHLIGHTS Total Green Bay Mineral Resource increased to 50. 4Mt @ 2. 0% Copper Equivalent (CuEq) in the Measured and Indicated (M&I) categories plus 29. 3Mt @ 2. 5% CuEq in the Inferred category: This was a 51% increase from the previous Mineral Resource Estimate (MRE) of October 2024Contained copper increased to 863kt M&I (113%) plus 566kt InferredContained gold increased to 546koz M&I (174%) plus 563koz Inferred (62%) (see ASX announcement dated 18 November 2025) FireFly has established a high-grade core comprising 8.
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