Denison Mines Corp.DNNNYSE

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Cosa Announces Expansions to Orion Project and Joint Ventures with Denison Mines

Vancouver, British Columbia--(Newsfile Corp. - March 3, 2026) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to announce expansions to the Murphy Lake North ("MLN"), Darby ("Darby"), and Orion ("Orion") projects (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.

prnewswire.com

Denison Announces Final Investment Decision for the Phoenix In-Situ Recovery Uranium Mine and Plans to Start Construction in March 2026

TORONTO, Feb. 24, 2026 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML) (NYSE American: DNN) is pleased to announce that its Board of Directors has made a Final Investment Decision ("FID") to proceed with the construction of the Phoenix In-Situ Recovery ("ISR") uranium mine ("Phoenix" or the "Project"), and that site preparation and construction activities for Phoenix are planned to commence in March 2026. PDF Version David Cates, President and CEO of Denison commented, "Making a Final Investment Decision and the upcoming initiation of construction activities at Phoenix mark the beginning of a new era in Denison's history and the Canadian uranium mining sector.

prnewswire.com

Denison Receives Final Regulatory Approval to Construct the Phoenix ISR Uranium Mine

TORONTO, Feb. 19, 2026 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML) (NYSE American: DNN) is pleased to announce that the Canadian Nuclear Safety Commission ("CNSC") has released the decision of its administrative tribunal (the "Commission") approving the Environmental Assessment ("EA") and issuing the Licence to Prepare Site & Construct a Mine and Mill (the "Licence") for the Wheeler River Uranium Project ("Wheeler River"). With the EA having previously been approved by the Province of Saskatchewan, and other provincial approvals necessary to commence construction already received, federal approval of the EA and the issuance of the Licence represent the final regulatory approvals required to commence construction of the Phoenix In-Situ Recovery ("ISR") uranium mine ("Phoenix" or the "Project").

prnewswire.com

Denison Announces Award of Construction Management Contract to Wood Canada for the Phoenix Uranium Mine

TORONTO, Feb. 17, 2026 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML; NYSE American: DNN) is pleased to announce that, following a competitive tender process, it has awarded Wood Canada Limited ("Wood"), a global leader in consulting and engineering, with the construction management contract (the "CM Contract") to oversee the building of the Phoenix in-situ recovery uranium mine ("Phoenix", or the "Project"). This is a key milestone for the Project and represents another crucial step towards the commencement of construction.

prnewswire.com

Americas Mineral Infrastructure Draws Capital As Critical Materials Deficits Deepen

/PRNewswire/ -- EquityInsider.com News Commentary - Across the Americas, leaders are urging action to meet the coming demand of all kinds of minerals and

newsfilecorp.com

F3 Issues Shares for Interest Debt Settlement

Kelowna, British Columbia--(Newsfile Corp. - January 28, 2026) - F3 Uranium Corp. (TSXV: FUU) (OTCQB: FUUFF) ("F3" or the "Company") notes that pursuant its financing agreement with Denison Mines Corp. (TSX: DML) (NYSE American: DNN) from October 2023, ("Denison") it has elected to settle a portion of the interest accrued to date in common shares (the "Debt Settlement"). The payment to Denison will consist of a cash payment of $225,000 and a total of 815,217 common shares of the corporation at a deemed price of $0.138 per share Terms of the Debenture as previously announced The Debenture carries a 9% coupon (the "Interest"), payable quarterly, has a maturity date of October 18, 2028, and is convertible at Denison's option into common shares of the Company at a conversion price of $0.56 per share (the "Conversion Price").

newsfilecorp.com

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: 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.

seekingalpha.com

Denison Mines: De-Risking And The New Phoenix ISR Milestone

Denison Mines Corp. (DNN) is rated BUY (conditional on CNSC license approval), with a $4.18 price target and 8% discount rate. The Phoenix ISR project positions DNN in the lowest global cost quartile, leveraging innovative freeze wall technology and strong internal funding. Securing grid power and advancing multiple projects, DNN is well-placed to benefit from surging uranium demand driven by AI data center growth.

newsfilecorp.com

Cosa Announces Winter 2026 Drilling Plans for Joint Ventures with Denison Mines

Vancouver, British Columbia--(Newsfile Corp. - January 21, 2026) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to announce drilling plans for the Company's Darby and Murphy Lake North ("MLN") projects (Figure 1). Darby and MLN are joint ventures (the "Joint Venture") between Cosa and Denison Mines Corp. (TSX: DML) (NYSE American: DNN) ("Denison") 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.

newsfilecorp.com

Cosa Appoints Justin Rodko as VP Corporate Development and Issues Shares to Denison

Vancouver, British Columbia--(Newsfile Corp. - January 14, 2026) - Cosa Resources Corp. (TSXV: COSA) (OTCQB: COSAF) (FSE: SSKU) ("Cosa" or the "Company") is pleased to report the promotion of Justin Rodko to Vice President, Corporate Development. Additionally, the Company announces the issuance of common shares to its largest shareholder and joint venture partner Denison Mines Corp. (TSX: DML) (NYSE American: DNN) ("Denison") pursuant to the acquisition agreement between Cosa and Denison dated November 26, 2024 (the "Acquisition Agreement").

prnewswire.com

Denison Announces Grid Power Available at Future Phoenix Uranium Mine Site Following Completion of SaskPower Transmission Line

TORONTO, Jan. 8, 2026 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML) (NYSE American: DNN) is pleased to announce that grid power supply from Saskatchewan Power Corporation ("SaskPower") is available at the site of the future Phoenix in-situ recovery uranium mine ("Phoenix", or the "Project") following the recent installation of a new 138kV transmission line. The availability of grid power at the Phoenix site represents a significant step in de-risking the execution of the Project, as the electrification of the site is on the critical path of activities planned for the first year of construction and supports the establishment of the freeze wall planned to surround the initial mining area.

zacks.com

Denison Mines' Phoenix ISR Project Ready for Construction Phase

DNN highlighted that its Phoenix ISR uranium project is construction-ready, awaiting final permits in early 2026, with first production targeted for mid-2028.

fool.com

Why Denison Mines Stock Soared Today

Denison Mines announced it is almost ready to start construction on its new uranium mine. Regulatory approvals are in process, and production could begin mid-2028.

prnewswire.com

Denison Reports Readiness to Commence Construction of Flagship Phoenix ISR Project and Provides Capital Cost Update

TORONTO, Jan. 2, 2026 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML; NYSE American: DNN) is pleased to report that, pending final regulatory approvals, it is ready to make a final investment decision ("FID") and commence construction of the proposed Phoenix In-Situ Recovery ("ISR") uranium mine ("Phoenix" or the "Project"). Significant regulatory, engineering, and construction planning progress has been made throughout 2025, which has positioned Phoenix in a construction-ready state, including confirmation of an expected 2-year construction timeline.

defenseworld.net

Skyharbour Resources (CVE:SYH) Trading Up 43.1% – Time to Buy?

Shares of Skyharbour Resources Ltd. (CVE: SYH - Get Free Report) were up 43.1% during mid-day trading on Saturday. The stock traded as high as C$0.47 and last traded at C$0.47. Approximately 7,214,700 shares were traded during mid-day trading, an increase of 1,130% from the average daily volume of 586,360 shares. The stock had previously

defenseworld.net

Skyharbour Resources (CVE:SYH) Shares Up 43.1% – Here’s Why

Skyharbour Resources Ltd. (CVE: SYH - Get Free Report)'s share price rose 43.1% during trading on Saturday. The company traded as high as C$0.47 and last traded at C$0.47. Approximately 7,214,700 shares were traded during trading, an increase of 1,130% from the average daily volume of 586,360 shares. The stock had previously closed at C$0.33.

defenseworld.net

Skyharbour Resources (CVE:SYH) Trading Up 43.1% – Time to Buy?

Skyharbour Resources Ltd. (CVE: SYH - Get Free Report)'s share price was up 43.1% on Saturday. The stock traded as high as C$0.47 and last traded at C$0.47. Approximately 7,214,700 shares changed hands during trading, an increase of 1,130% from the average daily volume of 586,360 shares. The stock had previously closed at C$0.33. Trending

defenseworld.net

Skyharbour Resources (CVE:SYH) Trading Up 43.1% – Should You Buy?

Skyharbour Resources Ltd. (CVE: SYH - Get Free Report)'s share price shot up 43.1% during trading on Saturday. The stock traded as high as C$0.47 and last traded at C$0.47. 7,214,700 shares traded hands during trading, an increase of 1,130% from the average session volume of 586,360 shares. The stock had previously closed at C$0.33.

defenseworld.net

Skyharbour Resources (CVE:SYH) Shares Up 43.1% – Still a Buy?

Skyharbour Resources Ltd. (CVE: SYH - Get Free Report) shot up 43.1% during mid-day trading on Saturday. The stock traded as high as C$0.47 and last traded at C$0.47. 7,214,700 shares traded hands during trading, an increase of 1,130% from the average session volume of 586,360 shares. The stock had previously closed at C$0.33. Key

defenseworld.net

Skyharbour Resources (CVE:SYH) Shares Up 43.1% – Still a Buy?

Skyharbour Resources Ltd. (CVE: SYH - Get Free Report) shares rose 43.1% during mid-day trading on Saturday. The company traded as high as C$0.47 and last traded at C$0.47. Approximately 7,214,700 shares changed hands during mid-day trading, an increase of 1,130% from the average daily volume of 586,360 shares. The stock had previously closed at

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