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Standard Uranium Ltd. reports developments tied to uranium exploration and project generation in Saskatchewan's Athabasca Basin. Company news centers on drill planning, reconnaissance drilling, radioactivity and assay results, geophysical targeting, and exploration work across projects including Davidson River, Rocas, and Corvo.
Updates also cover partner-funded earn-in option arrangements, exploration agreements with local rights-holder organizations, permitting, contractor mobilization, and technical programs aimed at identifying basement-hosted uranium targets in established uranium districts.
Standard Uranium (OTCQB: STTDF) finalised plans for the Rocas Project's inaugural drill program, with Collective Metals able to earn a 75% interest by funding CAD$4.5M in exploration.
Phase I will target shallow basement-hosted uranium with 1,200–1,500 m across 6–8 holes; surface radioactivity reached 33,000 cps with ten readings over 10,000 cps. Collective will fund 100% of year-one drilling and Standard Uranium will operate the 2026 program.
Standard Uranium (OTCQB: STTDF) has started a winter diamond drill program at its 12,364-hectare Corvo uranium project near Wollaston Lake, Saskatchewan. Drilling began February 9, 2026, with ~2,500–3,000 metres planned across 8–10 holes over five to six weeks, initially targeting the Manhattan showing.
Aventis Energy will fund the year-one program under an option to earn a 75% interest by funding CAD$6M in exploration over three years. Surface prospecting returned grab samples up to 8.10% U3O8; samples were analyzed by SRC Geoanalytical Laboratories under QA/QC protocols.
Standard Uranium (OTCQB: STTDF) has begun mobilization for a maiden diamond drilling campaign at the Corvo uranium project in the eastern Athabasca Basin, targeting the high-grade Manhattan Showing which returned a surface grab sample up to 8.10% U3O8.
The winter 2026 program plans approximately 3,000 metres of skid-supported drilling in 8–10 holes. Corvo is under a three-year earn-in option with Aventis Energy, where Aventis may fund CAD$6 million to earn a 75% interest. Drilling targets integrate 2025 high-resolution geophysics, EM conductors and gravity lows.
Standard Uranium (OTCQB: STTDF) finalized mobilization and drilling plans for a maiden winter program on the Corvo uranium project, with drilling to start in February 2026 under a three-year earn-in with Aventis Energy. The inaugural program targets approximately 2,500–3,000 metres across 8–10 holes, targeting shallow basement-hosted uranium less than 200–300 m depth. A high-resolution ground gravity survey (over 5,000 stations across >29 km) was completed to refine targets. Aventis will fund 100% of the year-one program to satisfy the CAD$6M three-year expenditure earn-in.
Standard Uranium (OTCQB: STTDF / TSXV: STND) announced that Market One produced a feature article about the company's operations and growth strategy, now published on Barchart on December 18, 2025.
The piece reviews the tightening global uranium supply backdrop and outlines Standard Uranium's exploration-focused strategy in the Athabasca Basin, including its project-generator model and planned drilling programs across multiple properties. The company provided a link to the full article on Barchart.
Standard Uranium (OTCQB: STTDF) appointed Doug Engdahl as a Non-Executive Director effective December 18, 2025, and recognized retiring directors Neil McCallum and Zoya Shashkova.
Engdahl is a registered P.Geo. with 20+ years in mineral exploration, 14+ years in uranium with Cameco and AREVA/Orano, and will join the company's audit committee. McCallum will move to a Lead Technical Advisor role; Shashkova is stepping down from the board and audit committee. The company granted 250,000 restricted share units to Engdahl vesting December 18, 2026, under the Omnibus Incentive Plan and subject to TSXV policies.
Standard Uranium (OTCQB: STTDF) announced that, effective December 11, 2025, the Sun Dog Project has returned to the company as 100% unencumbered ownership following conclusion of an arm's-length option agreement with Aero Energy. The 48,443-acre project hosts the historical Gunnar mine, which produced ~18M lbs U3O8 (1953–1981), and contains recent surface assays to 17.4% U3O8 plus modern geophysics and drilling.
Standard Uranium plans to advance exploration building on 4,062 m of diamond drilling, airborne VTEM and ground gravity surveys, and multiple verified target areas.
Standard Uranium (OTCQB: STTDF) received an 18-month exploration permit for the Corvo Uranium Project and has started a ground gravity survey ahead of a planned drill program in January 2026. The company contracted MWH Geo-Surveys to complete a 50 m x 200 m gravity grid covering over 29 km of conductive strike with >5,000 gravity stations. A skid-assisted diamond drill program of approximately 3,000 metres is planned for winter 2026, targeting the never-before-drilled Manhattan Showing and other radioactive occurrences. Surface assays cited include up to 8.10% U3O8 and historical results up to 59,800 ppm. An NI 43-101 technical report has been filed and ongoing geophysical modelling will refine drill targets.
Standard Uranium (OTCQB: STTDF) outlined its 2026 exploration program and summarized 2025 results across multiple Athabasca Basin projects.
Key 2026 plans include a drill-ready Davidson River program of approximately 8,000 metres in spring 2026, a first Corvo drill program of ~3,000 metres (first drilling in >40 years) following a 2025 gravity and EM campaign, and a first-ever Rocas drill program of ~1,800 metres. 2025 work produced high-resolution ExoSphere and ground gravity targets, Sun Dog assays showing anomalous uranium in all eight 2024 holes, and Corvo surface samples up to 8.10% U3O8. The company granted 1,475,000 options and 3,350,000 RSUs.
Standard Uranium (OTCQB: STTDF; TSXV: STND) filed a NI 43-101 technical report titled "Technical Report on the Corvo Property - Northeastern Saskatchewan, Canada" with an effective date of October 24, 2025.
The report was co-prepared by Axiom Exploration Group Ltd. and co-authored by Qualified Persons Troy Marfleet, P.Geo., and Sean Hillacre, M.Sc., P.Geo. The disclosure notes the report does not contain a Mineral Resource Estimate (MRE). The Report is available on SEDAR+ and the company website.