Welcome to our dedicated page for Cosa Resources news (Ticker: COSAF), a resource for investors and traders seeking the latest updates and insights on Cosa Resources stock.
Cosa Resources Corp. (COSAF) generates frequent news as a Canadian uranium exploration company advancing multiple projects in northern Saskatchewan’s Athabasca Basin region. Company updates often center on exploration programs, joint venture activity, and technical results from key uranium projects such as Murphy Lake North, Darby, Orbit, and Astro.
Investors following COSAF news can expect detailed announcements on drilling campaigns at the Murphy Lake North and Darby joint ventures with Denison Mines, including results from the Hurricane and Cyclone trends and identification of priority drill targets. Releases also describe work programs at 100% owned projects like Orbit, where Cosa has expanded its land position to cover coincident radon, helium, and hydrogen anomalies and electromagnetic conductors, and at Astro, where ZTEM surveying has outlined extensive conductive strike length considered prospective for uranium mineralization.
Cosa’s news flow additionally covers corporate developments such as strategic collaborations, option agreements with partners like Global Uranium Corporation, stock option grants, and marketing or investor relations initiatives. The company also reports on appointments to its leadership and advisory team and on Denison’s participation as Cosa’s largest shareholder and joint venture partner.
This news page aggregates these disclosures so readers can track Cosa’s exploration progress, joint venture decisions, and technical milestones across its Athabasca Basin uranium portfolio. For those monitoring COSAF, recurring themes in the news include drill program starts and results, geophysical survey findings, project expansions, and updates on collaborative work with Denison Mines and other partners.
Cosa Resources reported May 6, 2026 drilling results from the Darby joint venture with Denison (TSX: DML; NYSE American: DNN). Cosa (operator, 70%) completed three winter holes at Charlie, Gamma and Delta, finding strongly anomalous sandstone uranium (DB26-39A: 5.6 ppm over 103.5 m; subinterval 9.5 ppm over 53.5 m) and a weak basement intersection (0.04% U3O8 over 0.5 m). Gamma returned a ~150 m graphitic fault corridor, hydrothermal alteration and 35 m of unconformity relief. Assays for Delta hole DB26-42 and Murphy Lake North remain pending; summer drilling planned to follow.
Cosa (TSXV: COSA) and Denison Mines (NYSE: DNN) reported anomalous radioactivity in three of five winter 2026 drill holes at the Murphy Lake North joint venture. Key highlights include a 5.0 m continuously anomalous interval in MLN26-013 with peak handheld gamma readings >13,000 cps, shallow mineralization near ~260 m depth, and open strike for at least 600 m east and west within a kilometre-scale Cyclone alteration corridor. Assays are pending and the drill remains on site for summer 2026 follow-up.
Cosa (TSXV: COSA) and Denison Mines (NYSE: DNN) report that drill hole MLN26-013 at Murphy Lake North intersected 5.0 metres of anomalous radioactivity up to 13,900 CPS in the upper basement, approximately 260 metres vertical depth. Core recovery through the mineralized zone was 100%. Drilling is ongoing and assays are pending; Cosa operates the JV with a 70% interest and Denison holds 30%.
Cosa Resources (TSXV: COSA / OTCQB: COSAF) is advancing uranium exploration in Saskatchewan's Athabasca Basin, planning drill campaigns over the next 12–24 months near the Cigar Lake mine and Hurricane deposit. The company cites a strong treasury and strategic partnerships to pursue high‑potential targets in the district.
Cosa Resources (TSXV: COSA / OTCQB: COSAF) is advancing uranium exploration in Saskatchewan's Athabasca Basin with planned drill campaigns over the next 12–24 months near the Cigar Lake mine and Hurricane deposit. The company cites a strong treasury and strategic partnerships to pursue high‑potential targets in a premier uranium district.
Cosa Resources announced additions of six claims totalling 2,669 hectares to its Darby, Murphy Lake North (MLN) joint ventures with Denison (DNN) and to its 100% owned Orion project on March 3, 2026. Darby and MLN remain 70% Cosa / 30% Denison, Cosa acting as operator. All claims were acquired for minimal cash consideration and reported as free of encumbrances. The Darby expansion targets the untested Delta conductor with first-pass drilling possible as early as H2-2026; MLN and Orion expansions target interpreted conductive extensions from ZTEM and prior surveys.
Cosa Resources (TSXV: COSA / OTCQB: COSAF) has granted Traction Uranium (CSE: TRAC) an option to earn up to an 80% interest in the Aurora uranium project effective February 10, 2026. Consideration includes over $9 million in partner-funded exploration, $1.5 million in cash payments and 5 million shares of Traction.
Cosa will act as initial project operator and collect an operator fee. Aurora has not been drilled since 1979; recent geophysics by Cosa identified priority targets. Cosa says its primary focus remains on Darby and Murphy Lake North JV programs.
Cosa Resources (TSXV: COSA; OTCQB: COSAF) and Denison Mines (TSX: DML; NYSE: DNN) have begun winter 2026 drilling on the Darby joint venture, with Murphy Lake North (MLN) to follow. Cosa operates both projects and holds a 70% interest, Denison holds 30%.
Planned work includes ~2,500 metres at Darby to test 2025 relogging targets and ~1,200 metres at MLN to fill a 1,200‑metre lake-access drilling gap along the Cyclone trend.
Cosa Resources (TSXV: COSA / OTCQB: COSAF) invites investors to visit Booth #117 at the Vancouver Resource Investment Conference (VRIC) on Jan 25–26, 2026 at Vancouver Convention Centre West (1055 Canada Place).
The company, focused on eastern Athabasca uranium exploration and operating multiple joint ventures with Denison Mines, will participate among an event featuring ~120 speakers, over 5,000 industry professionals, and a marketplace of ~300 investment opportunities. The invitation highlights networking, keynote sessions, and exhibits across precious metals, energy, and critical minerals.
Contact: Keith Bodnarchuk, President and CEO; info@cosaresources.ca; cosaresources.ca.
Cosa (TSX-V: COSA / OTCQB: COSAF) and Denison (TSX: DML / NYSE: DNN) announced winter 2026 drill programs at the Darby and Murphy Lake North (MLN) joint-venture projects in the eastern Athabasca Basin, near Cigar Lake and Hurricane. Cosa (operator, 70%) and Denison (30%) plan ~2,500 metres at Darby and ~1,200 metres at MLN to test historical anomalous uranium in lower sandstone and graphitic basement faults. Denison will participate in funding 2026 MLN exploration to maintain its 30% interest. Camp construction is underway with Darby drilling expected to start before end of January and MLN in March.