Athabasca Basin uranium exploration companies

1. ATHA Energy (TSXV:SASK,OTCQB:SASKF)

ATHA Energy has an extensive uranium exploration pipeline across Canada, including in Saskatchewan’s Athabasca Basin. At 3.8 million acres, ATHA’s land package in the Athabasca Basin includes the Gemini project, a basement-hosted near-surface uranium deposit with uranium intercepts of between 6,190 and 96,600 parts per million.

The company also holds a 10 percent carried interest in exploration projects operated by NexGen Energy (TSX:NXE,NYSE:NXE) and IsoEnergy (TSX:ISO).

2. Azincourt Energy (TSXV:AAZ,OTCQB:AZURF)

Azincourt Energy has two uranium projects in Canada, one of which is its East Preston joint venture project near the southern edge of the Western Athabasca Basin. Azincourt has an 86.5 percent interest, with the remainder held by Skyharbour Resources. The 20,647 hectare property is adjacent to Skyharbour’s minority-owned Preston project.

Azincourt says it is targeting basement-hosted unconformity-related uranium deposits in two prospective conductive, low-magnetic-signature corridors. The company is planning for a fall 2025 geophysics exploration program at East Preston in preparation for a potential winter 2026 diamond drill program.

3. Baselode Energy (TSXV:FIND)

Baselode Energy’s strategy is developing assets near the Athabasca Basin with similar geology. Its ACKIO near-surface uranium discovery at its Hook project is located directly adjacent to the Athabascan Basin. First discovered by the company in September 2021, the ACKIO near-surface uranium prospect is more than 375 meters along strike, and more than 150 meters wide.

Baselode has identified at least nine separate uranium pods, or small bodies of mineralization, on the project. Drill results from its summer 2024 exploration program were released in May 2025, demonstrating the potential for further expansion of the known uranium mineralization at ACKIO.

4. CanAlaska Uranium (TSXV:CVV)

CanAlaska Uranium is a project generator with interests in a portfolio of assets in the Athabasca Basin covering 1.24 million acres. The company is advancing its West McArthur joint venture with Cameco, which is situated near the McArthur River mine in the Eastern Athabasca Basin. CanAlaska owns 85 percent of the project.

CanAlaska’s 2025 C$12.5 million drill program at West McArthur is aimed at expanding and delineating the high-grade Pike Zone uranium discovery.

Earlier this year, the company completed the first drilling in over 10 years at its wholly owned Cree East deposit in the south-eastern portion of the Basin. The drill program was fully funded by Nexus Uranium (CSE:NEXU,OTCQB:GIDMF) as part of an option earn-in agreement to earn up to 75 percent interest in the project.

5. Denison Mines (TSX:DML)

Uranium miner Denison Mines’ direct ownership interests in the Athabasca Basin region covers approximately 384,000 hectares. The company has a 22.25 percent stake in the McClean Lake mine and mill joint venture project operated by Orano Canada.

Denison’s flagship project in the region is Wheeler River, considered the largest undeveloped uranium project in the eastern region of the Athabasca Basin. Wheeler River hosts the high-grade Phoenix and Gryphon deposits.

According to a 2023 feasibility study, Phoenix hosts a proven and probable resource of 219,000 metric tons at an average grade of 11.7 percent uranium for 53.3 million pounds. The company plans to develop the deposit as an in-situ recovery operation.

The Canadian Nuclear Safety Commission is slated to conduct hearings for the project’s environmental assessment and license on October 8 and December 8 to 12, 2025. If approval is granted, the company is looking to break ground in early 2026 and commence production by the first half of 2028.

As for the Gryphon deposit, Denison has evaluated it as a conventional mine in a pre-feasibility study. The company conducted a field program in the first quarter 2025 that may be used for a future feasibility study.

6. F3 Uranium (TSXV:FUU,OTCQB:FUUFF)

F3 Uranium has three exploration properties in the western region of the Athabasca Basin: the advanced-stage Patterson Lake North project, which hosts the JR discovery, as well as the early-stage Minto and Broach projects.

In February 2025, the company launched a drill campaign at its Patterson Lake North project followed by ground geophysical exploration programs at its Broach and Minto projects. F3 Uranium raised C$7 million in flow-through shares in May 2025, which will go towards further exploration of its uranium projects.

7. Forum Energy Metals (TSXV:FMC,OTCQB:FDCFF)

Forum Energy Metals has numerous wholly owned and joint venture projects hosting new discoveries of high-grade unconformity-related uranium deposits in the Athabasca Basin. So far in 2025, the company’s focus has been on the Northwest Athabasca (NWA) project, a joint venture between Forum at 45.4 percent, NexGen Energy at 25.3 percent, Cameco at 18 percent and Orano Canada at 11.3 percent.

Early in the year, Forum announced an option agreement allowing Global Uranium (CSE:GURN,OTCQB:GURFF) to earn up to 75 percent of Forum’s stake in the property by spending C$20 million in exploration expenditures at NWA.

In April, Global Uranium completed a diamond drilling program and ground geophysical surveys on the project, which intersected elevated radioactivity and alteration systems distinct to unconformity-type uranium mineralization.

8. IsoEnergy (TSX:ISO)

IsoEnergy has a portfolio of projects and joint ventures in the Eastern Athabasca Basin, and its main focus is the Hurricane deposit at its wholly owned Larocque East uranium property.

The company discovered Hurricane in 2018 and it now stands as the world’s highest-grade indicated resource of uranium. A 2022 resource estimate reported an indicated high-grade resource of 63,800 metric tons grading 34.5 percent uranium for 48.61 million pounds of contained uranium.

IsoEnergy’s summer exploration program will include drilling to test potential resource expansion at Larocque East as well as exploration at its other Athabasca Basin projects.

9. NexGen Energy (TSX:NXE,NYSE:NXE)

NexGen is another uranium mining company with a large land package in the basin, including its development-stage Rook I project.

Rook I has a measured and indicated resource estimate of 256.7 million pounds contained uranium from ore grading an average of 3.1 percent U3O8. The 2021 feasibility study outlines an 11.5 year initial mine life with up to 29.2 million pounds of U3O8 production per year for the first five years.

The Federal Environmental Impact Statement for Rook I was accepted in January 2025, and the Canadian Nuclear Safety Commission has proposed hearing dates for the project on November 19, 2025, and February 9 to 13, 2026. NexGen plans to immediately begin construction activities following final federal approval.

10.Paladin Energy (TSX:PDN)

Paladin Energy’s Patterson Lake South (PLS) project hosts the large, high-grade and near-surface Triple R deposit, which has the potential to produce both uranium and gold. The company acquired it as part of its acquisition of Fission Uranium in 2024. Paladin also holds six early-stage uranium projects in the basin.

PLS’s mineral reserve estimate includes probable reserves of 93.7 million pounds from 3 million metric tons of ore at an average grade of 1.41 percent U3O8. The 2023 feasibility study demonstrates life of mine production of approximately 9 million pounds U3O8 per year over a 10 year mine life.

The company released positive drill results from its winter drill program on the Saloon East zone in June 2025 showing the potential to further grow the resource base of the property outside of the Triple R deposit. The project is advancing through the environmental permitting process.

11. Purepoint Uranium (TSXV:PTU)

Purepoint Uranium has an extensive uranium portfolio, including six joint ventures and five wholly owned projects all located in the Athabasca Basin.

Purepoint has a significant joint venture relationship with IsoEnergy (TSX:ISO) that includes a 50/50 joint venture agreement to explore 10 uranium projects across 98,000 hectares in the eastern portion of the Athabasca Basin. The partners launched a 2025 drill campaign in May at the Dorado project, which will include approximately 5,400 meters across 18 holes, targeting high-priority electromagnetic conductors for uranium mineralization.

Its joint ventures also include the Hook Lake uranium project in the Patterson region, in which it owns a 21 percent interest alongside Cameco and Orano Canada, which both hold 39.5 percent.

12. Skyharbour Resources (TSXV:SYH,OTCQX:SYHBF)

Skyharbour Resources is another junior mining company with an extensive portfolio of uranium exploration projects in the Athabasca Basin, comprising 36 uranium projects over 614,000 hectares. The company’s core projects include its 57.7 percent owned Russell Lake project — a joint venture with Rio Tinto (ASX:RIO,NYSE:RIO,LSE:RIO) — and its wholly owned Moore project.

Skyharbour’s 49,635 hectare Preston uranium project in the western portion of the Athabasca Basin is the subject of a 7,000 meter 2025 summer drill campaign being conducted by its joint venture partner, Orano Canada. Orano is the majority owner and operator at the project at 53.4 percent, while Skyharbour owns a minority interest of approximately 25.6 percent. The remainder is held by Dixie Gold.

13. Standard Uranium (TSXV:STND,OTCQB:STTDF)

Standard Uranium is an emerging project generator that holds interest in over 94,476 hectares in the Athabasca Basin, including its flagship Davidson River project in the southwest region of the basin.

In spring 2025, Standard Uranium partnered with Fleet Space Technologies Canada on three ExoSphere Multiphysics survey grids across the Warrior, Bronco and Thunderbird conductors at Davidson River. The surveys will provide important data for upgrading drill targets across the property through imaging of density anomalies in the basement rock.

Investor Insight

With a strategic foothold in Portugal and a commodity focus on tungsten – a metal deemed critical by both NATO and US defense agencies – Allied Critical Minerals is advancing two past-producing projects toward near-term production. Backed by a $4.6 million financing, offtake interest from major buyers, and a leadership team with proven capital markets and operational success, ACM is well-positioned to become the largest tungsten producer outside of China.

Overview

Allied Critical Minerals (CSE:ACM,FSE:0VJ0) is advancing two highly strategic, past-producing tungsten projects – Borralha and Vila Verde – located in northern Portugal. These brownfield assets present a compelling combination of near-term production potential and district-scale exploration upside, positioning the company to become the largest tungsten producer outside of China. With 100 percent ownership of both projects and supportive local communities, ACM is well-placed to contribute to the critically needed supply of this strategic metal to Western markets.

Tungsten is essential for defense systems, electric vehicles, semiconductors and artificial intelligence (AI), yet current global supply is dominated by China and Russia, accounting for about 90 percent of production. ACM’s projects are aligned with national security strategies in the US and EU, seeking secure and stable sources of tungsten supply. The company has already signed a letter of intent with Global Tungsten & Powders, a major Pennsylvania-based end-user with ties to the US military and is actively engaging with other global refineries.

To capitalize on these market dynamics, ACM closed a $4.6 million financing to fund an aggressive value creation plan. This includes an ongoing drill program at Borralha aimed at expanding its existing NI 43-101 resource, and the construction of a pilot processing facility at Vila Verde, targeted to begin in Q4 2025 and become operational by 2026. The pilot plant will process tailings and alluvial material from existing deposits, with an estimated annual output of ~250 tons tungsten trioxide (WO₃) and projected revenues of $4 million to $5 million, supporting near-term cash flow with minimal dilution.

ACM differentiates itself from competitors such as American Tungsten and Fireweed through its permitting progress, advanced technical groundwork and strong leadership. CEO Roy Bonnell brings a proven track record of successful exits and rapid value creation, having been instrumental in the success of both Founders Metals (TSXV:FDR) and Thesis Gold (TSXV:TAU) — two of the TSX Venture’s top-performing issuers in recent years.

Company Highlights

• Strategic Focus on Critical Metals: Allied Critical Minerals is developing two tungsten projects – Borralha and Vila Verde – in mining-friendly northern Portugal, targeting near-term production and long-term scale.
• Advanced Brownfield Assets: Both projects are historic producers with significant infrastructure, community support and technical momentum. Borralha produced tungsten from 1904 to 1986, and holds a newly updated NI 43-101 compliant resource.
• Pilot Plant Launch in 2026: A pilot plant at Vila Verde is slated for construction in Q4 2025 with 150,000 tpa throughput capacity, expandable to 300,000 tpa. Target output of ~250 tons WO₃ annually is expected to generate $4 million to $5 million in revenue, funded through non-dilutive financing.
• Offtake and Government Support: Allied has signed an LOI with Global Tungsten & Powders and is in discussions with additional refineries. Expressions of interest from US and EU defense-linked buyers are ongoing.
• High Impact Drill Campaign: A fully funded 5,000 meter drill program is currently underway at Borralha, with assays expected to expand resources and define the high-grade Santa Helena Breccia zone.
• Differentiated from Peers: Allied is one of only a few public companies in the Western world with near-term tungsten production potential, outpacing peers such as American Tungsten and Fireweed, in both timeline and resource readiness.

Key Projects

Borralha Tungsten Project

The Borralha project is ACM’s flagship development-stage asset, located approximately 100 km northeast of Porto in northern Portugal. A brownfield project with a rich production history dating back to 1904, Borralha produced over 10,280 tons of wolframite concentrate at an average grade of 66 percent WO₃, until operations ceased in 1986. Today, the project is advancing rapidly, supported by a Mining Rights Concession License and a newly updated NI 43-101 compliant resource estimate effective July 31, 2024. The estimate defines indicated resources of 4.98 million tons (Mt) at an average grade of 0.22 percent WO₃, 762 grams per ton (g/t) copper, and 4.8 g/t silver, and inferred resources of 7.01 Mt at 0.20 percent WO₃, 642 g/t copper, and 4.4 g/t silver. The project area hosts significant polymetallic enrichment, with tin and copper frequently associated with the tungsten mineralization, adding potential for by-product credits.

The primary zone of interest, the Santa Helena Breccia (SHB), is a subvertical to sub-horizontal breccia pipe-style tungsten system. Historical and recent drilling confirms broad, continuous mineralization with highlight intercepts including 106 m at 0.21 percent WO₃, 114 m at 0.23 percent WO₃, 108 m at 0.22 percent WO₃, and a high-grade zone of 10 m at 1.75 percent WO₃.

The SHB zone accounts for over 70 percent of known mineralization, but only about half of the zone has been drill-tested to date. The current drill campaign is targeting both lateral extensions and higher-grade core zones within the breccia body.

Geologically, the deposit is hosted in metasedimentary rocks intruded by late-Variscan granites, with mineralization occurring predominantly as wolframite associated with quartz-cassiterite veins and breccia infill. Breccia pipe mining techniques – similar to open-pit quarry operations – are anticipated for early-stage exploitation.

The project is currently undergoing an environmental impact assessment under review by Portuguese authorities. The mining license includes provisions for up to 150,000 tons per annum of bulk sampling ahead of full-scale operations, which will be governed by a future feasibility study. The low-cost drill environment (~$235/meter) and excellent infrastructure – including road, power, water and proximity to a skilled workforce – make Borralha a technically robust and strategically significant asset for ACM.

Vila Verde Tungsten-Tin Project

Located approximately 45 km southeast of Borralha, the Vila Verde project is ACM’s pilot production and near-term cash flow opportunity. Historically, this area hosted the Vale das Gatas Mine, which was one of Portugal’s largest tungsten producers prior to its closure in 1986. The project covers a significantly larger land area than Borralha and includes multiple mineralized zones, notably Cumieira and Porqueira. A historical resource estimate from 2020 defined 7.3 Mt of mineralized material above a 0.05 percent WO₃ cutoff, including 4.0 Mt at 0.14 percent WO₃ in the Cumieira zone and 3.3 Mt at 0.10 percent WO₃ in Porqueira. While historical in nature, these figures are supported by 17 diamond drill holes totaling 2,103 metres, which revealed a 2.1 km x 1.0 km mineralized footprint at Cumieira and a 1.0 km x 500 m footprint at Porqueira.

Vila Verde Pilot Plan

Vila Verde is advancing toward the construction of a 150,000-ton-per-annum pilot plant, scheduled to begin construction in Q4 2025 and be operational in 2026. Tailings and alluvial material from the Justes deposit will be used as the initial feedstock, with an average WO₃ grade of ~0.21 percent anticipated. Plant design includes standard crushing and grinding circuits followed by gravimetric and magnetic separation to produce a high-grade wolframite concentrate. Engineering work by GMR Consultores and MinePro Solutions supports an annual output of approximately 250 tons of WO₃ under current parameters. The total estimated CAPEX for the pilot plant is CA$7.9 million, with a proposed expansion to 300,000 tpa requiring an additional CA$2.9 million, both targeted for non-dilutive funding sources.

Permitting is progressing efficiently, with the mineral license being converted from exploration to experimental mining status. This permits early-stage production while full-scale licensing is pursued. The project benefits from pre-existing quarry infrastructure, strong community support, and short timelines to cash flow. A signed LOI with Global Tungsten & Powders in Pennsylvania provides an initial offtake channel, and additional negotiations with global refiners are ongoing. Vila Verde is central to ACM’s short-term revenue plan and is designed to serve as a testbed for scalable production across its broader tungsten portfolio.

Management Team

Roy Bonnell – CEO and Director

Roy Bonnell is a seasoned executive with over 30 years in capital markets, venture finance and natural resources. Bonnell holds an LLB from Western University, an MSc from the London School of Economics, and an MBA from McGill University. He brings deep leadership and financing experience and previously served as a board member for Founders Metals and Thesis Gold – two of the TSXV’s top performers.

João Barros – President and COO

With over 20 years of mining sector experience in Portugal, João Barros specializes in exploration management, environmental impact assessments and feasibility studies. He has held leadership roles at Ascendant Resources and Redcorp, and is a member of the Portuguese Engineers Association.

Sean O’Neill – Non-Executive Chairman

Sean O’Neill is head of securities at Boughton Law with 20+ years in corporate and securities law, including advising mining firms globally. He holds degrees in Chemical Engineering and Law, an MBA, and is a registered professional engineer (P.Eng).

Michael Galego – Director

Michael Galego is the CEO of Apolo Capital Advisory and CLO of LNG Energy, with extensive experience in M&A and corporate strategy. Notably, he advised on the sale of Woulfe Mining (tungsten asset) to Almonty Industries. He is a Lexpert Top 40 Under 40 awardee and member of the TSX Venture Advisory Committee.

Colin Padget – Director

CEO of Founders Metals, Colin Padget brings operational exploration experience across South America. He holds a Masters in Geology and a Bachelor in Business Administration.

Andrew Lee – Director and Corporate Secretary

Former Managing Director of York Harbour Metals, Andrew Lee has 15 years of global exploration experience across gold and phosphate projects in Ecuador and West Africa.

Sean Choi – CFO

A CPA with nearly 20 years in mining finance, Sean Choi has held CFO roles at York Harbour Metals, Ecuador Gold & Copper, and Northern Sun Mining. He holds a degree from the Western University.

Bullet briefing — Gold repatriation, Rule Symposium

Germany, Italy to repatriate gold?

Germany and Italy are facing calls to bring home gold stored in the US.

According to the Financial Times, politicians and economists in the two countries are pushing for repatriation as a result of global geopolitical uncertainty, as well as concerns about Trump’s potential influence on the Federal Reserve as he continues to criticize Chair Jerome Powell.

‘We are very concerned about Trump tampering with the Federal Reserve Bank’s independence. Our recommendation is to bring the (German and Italian) gold home to ensure European central banks have unlimited control over it at any given point in time’ — Michael Jäger, Taxpayers Association of Europe

The news outlet calculates that German and Italian gold held in the US has a total value of about US$245 billion. Market participants agree that it would be a blow to relations with America if the countries were to bring their gold home at this time.

At least for now they seem unlikely to do so — although Italy’s central bank hasn’t commented, Germany’s Bundesbank said it sees the New York Fed as ‘trustworthy and reliable.’

Send your questions for the Rule Symposium

The Rule Symposium runs in Boca Raton, Florida, from July 7 to 11, and I’ll be heading there to interview Rick Rule, as well as Adrian Day, Lobo Tiggre, Andy Schectman, Dr. Nomi Prins and more.