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Cosa Announces Commencement of Winter 2026 Drilling Campaign on Joint Ventures with Denison Mines
Vancouver, British Columbia--(Newsfile Corp. - January 28, 2026) - Cosa Resources Corp. (TSXV: C...
About this update from Cosa Resources Corp.
[{"type":"text","content":"Cosa Announces Commencement of Winter 2026 Drilling Campaign on Joint Ventures with Denison MinesVancouver, British Columbia--(Newsfile Corp. - January 28, 2026) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) (\"Cosa\" or the \"Company\") is pleased to announce drilling has commenced at the Company's Darby (\"Darby\") project, with drilling at Murphy Lake North (\"MLN\") to follow (Figure 1). Darby and MLN are joint ventures (the \"Joint Venture\") between Cosa and Denison Mines Corp. (\"Denison\") (TSX: DML) (NYSE American: DNN) and are located 10 kilometres west of Cameco's Cigar Lake Mine and three kilometres east of IsoEnergy's Hurricane Deposit, respectively, in the eastern Athabasca Basin, Saskatchewan. Cosa is the operator of both projects and holds a 70% interest with Denison holding a 30% interest in each.Winter DrillingApproximately 2,500 metres are planned at Darby in winter 2026 to test initial priority targets identified by Cosa's 2025 core relogging and reinterpretation program. Priority targets are the immediate vicinities of drill holes which intersected zones of coincident sandstone alteration and anomalous1 uranium content proximal to significant graphitic basement faults. Up to four initial target areas will be evaluated during winter 2026. Drilling plans at MLN comprise approximately 1,200 metres and will follow up summer 2025 results at the Cyclone trend where broad zones of structure and alteration were intersected over a two-kilometre strike length. Drilling will target a 1,200-metre gap in existing drilling where a lake prevents summer access. Drilling will also test a potential trend parallel to and approximately 100 metres south of Cyclone interpreted from intensely graphitic rocks and faulting intersected in the basement of MLN25-007.For further details on winter 2026 drill targets, refer to Cosa's news release dated January 21, 2026.About DarbyLocated 10 kilometres west of the Cigar Lake Mine, Darby contains multiple prospective conductive trends and several historical intersections of weak uranium mineralization (Figure 1). Historical drilling demonstrates that many of these trends are highly prospective for uranium deposits characteristic of the eastern Athabasca Basin, yet most of the strike length has not been effectively evaluated. Work by Cosa in 2025 prioritized these trends and...