Standard Uranium Limited (TSXV: Stand) (Otkbk: Stdf) (FSE: 9SU0) (“Standard uranium“or”a company“”) is pleased to announce the commencement of drilling activities at the Company’s flagship Davidson River Uranium Project (“Davidson River“, or “project“) is located in the Southwestern Athabasca Uranium Zone in Saskatchewan (Figure 1). Field crews arrived at the project, and drilling began on schedule.
Highlights:
- Drilling in progress: Drilling activities began on 29 May 2026. The helicopter-supported program is planned to expand for 2026 to exceed approximately 8,000 meters of diamond drilling across three main conductor directions. The program is expected to last approximately twelve (12) weeks.
- Powerful drilling targets: Drill holes are designed to follow up on information gained during previous diamond drilling programs combined with newly integrated ExoSphere Multiphysics surveys to strategically target high-grade material.* Uranium mineralization is hosted in the basement across the Bronco and Thunderbird Warrior connective corridors.
- Integrated exploration strategy: Improved structural geometry of known basement conductors, distinct lithological variations, and potential alteration signatures at depth through multi-source data collection; An approach that combines real-time 3D ambient noise tomography (“Ants“), the horizontal to vertical spectral ratio (“”).HVSR“), and gravitation Surveys using the project’s existing paleontological and geophysical datasets.
- Target development and drilling: Targets were classified and prioritized based on geophysical signature, geological/structural setting, and proximity to favorable drill hole results of interest associated with major conductor trends.
“We are very excited to return to drilling our flagship project for the first time since 2022,” he said. Sean Hillaker, President and Vice President, Exploration. “Our technical team has done an exceptional job developing the project over the past few years, and armed with our new multiphysics datasets, we are applying a discovery-driven approach to what we believe are the strongest drill targets we have ever achieved in the Davidson River. The combination of new data, refined geological interpretation and a high-confidence targeting approach gives us tremendous enthusiasm heading into this next phase of exploration.”
Figure 1. Overview of the pioneering Davidson River Standard Uranium Project in the southwest Athabasca Basin uranium zone along the trend of significant uranium discoveries and resources.1,2.
Davidson River 2026 Drilling Program
The Standard Uranium team arrived on site on June 1street Diamonds are currently being drilled in the first hole. The summer drill campaign is planned to exceed approximately 8,000 meters of drilling in high-priority target areas following the completion of the first ExoSphere Multiphysics survey in the southwestern Athabasca Basin region and multifaceted geophysical modeling last year. Two rigs will be used to test new targets along the Bronco and Thunderbird Warrior structural corridors.
The Davidson River occupies 30,737 hectares across ten contiguous mineral claims along the western extension of the same structural corridors that host the most significant uranium discoveries in southwest Athabasca. The Company believes the Davidson River represents an important exploration location given structurally favorable trends, and the 2026 drilling program is expected to be the largest in Standard Uranium’s history. The company believes that the project has great potential for discovering shallow, high-quality areas* Uranium mineralization in the basement.
Target selection for the 2026 training campaign
In partnership with Fleet Space Technologies, Standard Uranium has completed the first-ever ExoSphere Multiphysics surveys in the southwestern Athabasca Basin, integrating ANT, HVSR and 3D geogravity datasets to create mantle-corrected 3D models of basement velocity, density and structural structure across the Warrior, Bronco and Thunderbird corridors.
Integrating Multiphysics data with previous drilling results, geogravity, EM conductors, and ALS GoldSpot SmartMatch machine learning targeting has produced what the company believes are the most confident drilling targets ever at Davidson River. Distinctive low-density anomalies interpreted as potential indicators of hydrothermal alteration associated with uranium mineralization were identified across all three passes studied, in conjunction with mapped EM conductivities and basement fault extrapolations.
Figure 2. Summary of results from Multiphysics surveys on the Warrior, Bronco, and Thunderbird corridors, highlighting integral target areas – electromagnetic conductors, cross-faults, low density, and low velocity.
Statement of qualified person
The scientific and technical information contained in this press release has been reviewed, verified and approved by Sean Hillacre, P.Geo., President and Vice President of Exploration for the Company and a “Qualified Person” as defined in NI 43-101 – Standards for Disclosure for Mineral Projects.
The historical data disclosed in this press release relating to sampling results from prior operators are historical in nature. Neither the Company nor any qualified person has yet verified these statements, and therefore investors should not place undue reliance on these statements. The company’s future exploration work may include data verification. The Company considers historical results to be relevant as exploration evidence and to evaluate mineralization as well as the economic potential of exploration projects. Any historical grab samples detected are selected samples and may not represent true underlying mineralization.
References
1 Share Filing, Rook I Project, Saskatchewan, NI 43-101 Technical Report on Feasibility Study, Prepared for NexGen Energy Ltd., Effective Date: February 22, 2021.
2 Feasibility study, Technical Report NI 43-101, for PLS, prepared for Fission Uranium Corp., effective date: January 17, 2023.
*The company is studying uranium mineralization at concentrations greater than 1.0 wt% U3Hey8 To be “high quality”.
About Standard Uranium (TSXV): Stand)
We find the fuel needed to power a clean energy future
Standard Uranium is a uranium exploration company and startup generator poised for discovery in one of the world’s leading uranium regions. The company has an interest in more than 219,327 acres (88,758 ha) in the Athabasca Basin in Saskatchewan, Canada. Since its inception, Standard Uranium has focused on identifying, acquiring and exploring Athabasca-grade uranium targets for future discovery and development.
The Davidson River Uranium Standard Project, in the southwestern portion of the Athabasca Basin, Saskatchewan, includes ten mineral claims over 30,737 hectares. The Davidson River is highly prospective for basement uranium deposits due to its location along the trend generated by recent high-grade uranium discoveries. However, due to the large scale of the project with multiple targets, it is still not extensively tested by drilling. Recent intersections of extensive, structurally deformed and strongly altered shear zones provide great confidence in the exploration model and future success is expected.
Standard Uranium’s East Athabasca projects include more than 38,417 hectares of prospective land. The Eastern Basin Projects are very promising for unconformities and/or basement uranium deposits based on historical uranium incidents, recently identified geophysical anomalies, and the along-trend location of several high-grade uranium discoveries.
Standard Uranium’s Sun Dog project, in the northwestern part of the Athabasca Basin, Saskatchewan, consists of nine mineral claims over 19,603 hectares. The Sun Dog Project is very promising for its basement-hosted, unconformable uranium deposits, yet remains largely untested by adequate drilling despite its location close to uranium discoveries in the area.
Cautionary statement regarding forward-looking statements
This press release contains “forward-looking statements” or “forward-looking information” (collectively “forward-looking statements”) within the meaning of applicable securities legislation. All statements, other than statements of historical fact, are forward-looking statements and are based on expectations, estimates and projections as of the date of this press release. Forward-looking statements include, but are not limited to, statements regarding: the timing and content of upcoming work programs; Timing of assay results. Geological explanations. the Company’s expectations regarding the Company’s drilling results; the timing of the Company’s exploration programs; and estimates of market conditions.
Forward-looking statements are subject to a variety of known and unknown risks, uncertainties and other factors that may cause actual events or results to differ from those expressed or implied by the forward-looking statements contained herein. Such statements cannot be guaranteed to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Certain important factors that could cause actual results, performance or achievements to differ materially from those contained in forward-looking statements are highlighted in “Risks and Uncertainties” in the Company’s management’s discussion and analysis for the fiscal year ending April 30, 2025.
Forward-looking statements are based on a number of estimates and assumptions that, although considered reasonable by the Company at this time, are inherently subject to significant business, economic and competitive uncertainties and contingencies that may cause the Company’s actual financial results, performance or achievements to differ materially from those expressed or implied herein. Some of the material factors or assumptions used to develop forward-looking statements include, but are not limited to: the future price of uranium; expected costs and the Company’s ability to raise additional capital if and when needed; Fluctuations in the market prices of the Company’s securities; future sales of the Company’s securities; the Company’s ability to continue exploration and development activities; the success of exploration, development and operations activities; Timing and results of drilling programs. discovery of mineral resources on the Company’s mineral properties; Exploration and operating expenses costs. the existence of laws and regulations that may impose restrictions on mining; employee relations; Relations with local and indigenous communities and their claims; availability of increased costs associated with mining inputs and labor; The speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from governmental authorities); uncertainties regarding ownership of mineral properties; Assessments by tax authorities; Fluctuations in general macroeconomic conditions.
The forward-looking statements contained in this news release are expressly qualified by this cautionary statement. Any forward-looking statements and the assumptions related thereto are made as of the date of this press release and are therefore subject to change after such date. The Company disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable securities laws. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.
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