RSS SubscribeVancouver, British Columbia, September 16, 2026 – Cosa Resources Corp. (TSX-V: COSA) (OTCQB: COSAF) (FSE: SSKU) (“ Cosa ” or the “ Company ”) is pleased to announce commencement of drilling at the Company’s Darby (“ Darby ”) project (Figure 1). Darby is a joint venture (the “ Joint Venture ”) between Cosa and Denison Mines Corp. (“ Denison ”) (TSX: DML) (NYSE American: DNN) and is located 10 kilometres west of Cameco’s Cigar Lake Mine. Cosa is the project operator and holds a 70% interest with Denison holding a 30% interest.
Keith Bodnarchuk, President and CEO, commented: “Having recently completed an encouraging and productive drilling program at Murphy Lake North, we are excited to be back drilling at the Darby Joint Venture with our partner and largest shareholder, Denison Mines. Viewed by Cosa as a discovery-ready Project, Darby boasts an exceptional pipeline of high-upside drill targets in proximity to structure, alteration, and historical uranium mineralization. With $16 million in the treasury, we are fully funded for the summer program and follow-up in 2027. While our core focus remains on advancing the Murphy Lake North and Darby joint ventures with Denison, we are finalizing plans for a 100% partner funded drilling program expected to[AC1.1] commence at our Aurora project in the coming days.”