The company reported that, after receiving final federal regulatory approvals in February 2026, Denison Mines has moved from permitting to physical work at its flagship Phoenix ISR project on the Wheeler River property. Management completed the final investment decision (FID) for Phoenix and mobilized an integrated project team to the site in early March. The shift from planning to on-the-ground activity marks the first time a large-scale uranium mine in Canada has advanced to construction approval in over two decades.
Denison says early works are focused on schedule-critical tasks to enable full construction by the end of the second quarter and support the company’s target of first uranium production in mid-2028.
Early mobilization has already yielded concrete progress: tree clearing across the primary mine footprint was completed ahead of the migratory bird season, a site helipad was built and civil work for a concrete batch plant pad was finished to receive equipment. A nearby quarry was activated with a rock crusher to produce aggregate for on-site civil activities, and preparatory work for a future airstrip has started. Regular helicopter transport to site began in April 2026 following the helipad completion, and Denison notes that helicopter access currently mitigates road access challenges caused by widespread flooding in parts of northern Saskatchewan, which may affect the timing for bringing heavy equipment and supplies if conditions persist.
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Construction strategy and contractor engagement
To manage the transition into full-scale construction, Denison awarded a construction management contract in February 2026 to Wood Canada Limited following a competitive tender. Under the agreement, Wood will provide procurement and construction management services for the processing plant scope, install select site infrastructure, and deliver integrated project controls and on-site safety oversight. Denison and Wood are operating as an integrated project management team, with complementary roles to maintain controls, reporting and performance standards during the build. The company expects the ramp-up of construction personnel and activities to occur before the end of the second quarter of 2026, with an estimated two-year construction period once fully underway.
Capital cost update
Based on completed engineering and procurement since the 2026 feasibility study, Denison released an updated initial capital cost estimate in January 2026. Accounting for inflation, market-driven cost pressures and project refinements, the post-FID initial capital estimate for Phoenix is approximately $600 million. This figure underpins the company’s project financing and execution planning as the integrated team prepares to scale construction efforts. Denison positions Phoenix as a potentially low-cost source of uranium production relative to peers, aligning the capital plan with the timeline to deliver material production before the end of the decade.
Operational context and regional assets
While Phoenix advances through site preparation, Denison continues to participate in operating assets. At its 22.5% owned McClean Lake operation, activity in the first quarter focused on resource confirmation drilling at the McClean North SABRE mine, with minimal mining while crews prepare to resume active operations later in the second quarter. Denison also retains interests across other Athabasca Basin properties, including Midwest Main, Midwest A, THT and Huskie, and holds substantial land positions totaling approximately 457,000 hectares in the region. These holdings, together with McClean Lake’s existing milling capabilities, provide complementary production optionality for the company’s medium- and long-term plans.
Shareholder meeting and governance
At its 2026 annual and special meeting in Toronto, Denison reported that all matters presented to shareholders were approved, with detailed voting results filed on SEDAR+ and EDGAR. The meeting confirmed board and governance arrangements that support the company’s execution of permit-to-construction activities and commercial initiatives tied to Phoenix. Denison reiterated its status as a reporting issuer in Canada with listings on the TSX (symbol DML) and the NYSE American (symbol DNN).
Uranium marketing, sales and financing
Monetizing physical inventory and aligning sales with project financing has been a key focus. During the first quarter of 2026, Denison entered near-term sales agreements for 550,000 pounds of U3O8 with deliveries scheduled between the second quarter of 2026 and the first quarter of 2027 at an average realized price of approximately US$99.07 per pound. As of the quarter end, 1,350,000 pounds of U3O8 were committed for deliveries between the second quarter of 2026 and the second quarter of 2027. Of that volume, 950,000 pounds were sold at a fixed average price of US$92.05 per pound for gross proceeds of US$87.5 million; the remaining 400,000 pounds are priced on a market-related basis. Approximately 500,000 pounds of physical holdings remain uncommitted.
Beyond near-term transactions, Denison reports contracted sales commitments for nearly 8 million pounds of U3O8 from its physical holdings and expected future production, and it is in advanced negotiations for an additional ~8 million pounds, representing about 16 million pounds of contracted and near-contracted supply. Customers include leading North American nuclear utilities collectively responsible for over 50 reactors, alongside reputable intermediaries. Pricing mechanisms in these deals vary and include market-related structures and base-escalated terms. Management highlights that these commercial arrangements support Phoenix project financing and reflect growing interest in securing new supply in a tightening uranium market.
