Denison Mines Corp.

Vancouver, British Columbia--(Newsfile Corp. - May 28, 2026) - Cosa Resources Corp. (TSX-V: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to announce summer plans for the largest drill program to date at the Company's Murphy Lake North ("MLN") project. Drilling is set to commence in mid-June and will follow up on uranium mineralization intersected in winter 2026. Muphy Lake North is a joint venture (the "Joint Venture") between Cosa and Denison Mines Corp. (TSX: DML) (NYSE American: DNN) ("Denison") and is located t...

Vancouver, British Columbia--(Newsfile Corp. - June 3, 2026) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to announce that it has entered into an agreement with Velocity Trade Capital Ltd., on behalf of itself and a syndicate of underwriters to include Haywood Securities Inc. as co-lead underwriter (collectively, the "Underwriters") who have agreed to purchase, on a "bought deal" private placement basis: (i) 1,670,000 common shares of the Company (the "Non-FT Shares") at a price of C$0.60 per Non-FT Share, (ii) 3,045,000 charity flow-throu...

Vancouver, British Columbia--(Newsfile Corp. - June 15, 2026) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to announce summer plans for the Company's Darby ("Darby") project. Darby is a joint venture (the "Joint Venture") between Cosa and Denison Mines Corp. (TSX: DML) (NYSE American: DNN) ("Denison") and is located 10 kilometres west of Cameco's Cigar Lake Mine in the eastern Athabasca Basin, Saskatchewan (Figure 1). Cosa is the operator of Darby and holds a 70% interest with Denison holding a 30% interest. Drilling at Darby is expec...