Mr. Jon Bey reports

STANDARD URANIUM OUTLINES 2026 EXPLORATION PLANS AND HIGHLIGHTS SUCCESSFUL 2025 PROGRAMS

Standard Uranium Ltd. has outlined extensive exploration plans for 2026 and has presented a summary of successful 2025 exploration activities. Exploration plans in 2026 will include high-resolution geophysics and targeted drill programs across multiple uranium projects in the Athabasca basin, Northern Saskatchewan.

Highlights:

• Drilling all year: Diamond drilling programs are planned across multiple projects in 2026, including the company's flagship Davidson River project, and partner-financed programs on the Corvo and Rocas projects.
• Driving discoveries: With programs planned across multiple Athabasca uranium projects across the basin, the company will generate constant news flow, cash payments in operator fees and multiple chances at new discoveries in 2026.
• Building value: The company will drive meaningful exploration and build shareholder value through exploration on Davidson River while partner-financed programs provide additional exploration upside and minimize investor risk and dilution.

Jon Bey, chief executive officer of Standard Uranium, commented: "Two thousand twenty-six is poised to be the company's most active exploration season to date. With new option agreements in place for the Corvo and Rocas projects, and Davidson River now drill-ready with new high-priority target areas identified via the first exosphere multiphysics survey in the southwestern Athabasca, we are pleased to share that we continue to advance our uranium exploration portfolio toward discovery. We firmly believe the uranium market will remain one o the few bright spots in the investment landscape ahead."

2026 exploration plans

Davidson River project

New and refined target areas across the Warrior, Bronco and Thunderbird conductor corridors have been identified through high-resolution 3-D imaging of basement structures and potential alteration zones, providing key targeting information for spring 2026 drilling. The company has secured all drill permits, signed exploration agreements with its Clearwater River Dene Nation partners, retained all essential vendors and plans to initiate an aggressive drill program in early spring 2026 to begin testing new targets with approximately 8,000 metres planned.

Corvo project

In December, 2025, the company plans to complete an extensive 50-metre-by-200-metre ground gravity survey covering more than 29 km of conductive strike length, which will aid in identifying density anomalies that may represent hydrothermal alteration systems when coinciding with uranium fertile electromagnetic conductor trends.

Following the gravity survey, a skid-assisted diamond drill program totalling approximately 3,000 metres is planned for winter 2026, which will mark the first drill program on the project in more than 40 years. Drilling will target high-priority areas including the never-before-drilled Manhattan showing and newly identified radioactive occurrences across the property.

Rocas project

The company completed a high-resolution ground gravity survey in 2024, and Convolutions Geoscience completed the processing, interpretation and modelling of the gravity data. The survey identified several density-low anomalies coinciding with historical surface mineralization, lakebed geochemical anomalies and crosscutting fault zones along the project's known conductive exploration trends.

Standard Uranium plans to conduct the first ever drill program on the project in winter 2026, comprising approximately 1,800 metres, to begin testing high-priority zones along the main 7.5-kilometre magnetic low/EM conductive corridor, which hosts several uranium showings and has remained untested to date.

Sun Dog project

The company plans to complete 3-D modelling and inversions of EM and gravity data collected across the project in 2024 and 2025. Integration of geophysical products with surficial sampling and drilling results to date will help refine drill targets for a future partner-financed drill program.

2025 exploration summary

Davidson River project

In May of 2025, a fleet exosphere multiphysics survey was competed across key areas of the Thunderbird, Bronco and Warrior trends. Combined 3-D ambient noise tomography, horizontal-to-vertical spectral ratio velocity models and constrained ground gravity block models have been generated.

Distinct gravity-low anomalies interpreted as potential hydrothermal alteration zones have been identified across all three corridors. These overlap known EM conductors, extrapolated basement faults from previous drilling and basement velocity lows -- indicating structural disruption or favourable lithological contrasts. Several new targets also align with ALS Goldspot EM SmartMatch anomalies generated through machine learning comparisons with the neighbouring Arrow and Triple R uranium deposits.

Sun Dog project

In early 2025, MWH Geo-Surveys (Canada) Ltd. completed high-resolution ground gravity surveys across the Armbruster South, Wishbone and McNie target areas, refining high-priority drill targets by identifying potential hydrothermal alteration zones associated with EM conductors.

Third party processing of the gravity data by Convolutions Geoscience identified density-low bull's-eyes and high-contrast gravity zones. Where these anomalies coincide with faults, EM conductors, surface uranium showings and lakebed geochemical anomalies, multiple new prospective target zones have been defined. Additionally, assays from the 2024 drill program, which tested the newly identified Wishbone target area, returned anomalous uranium in all eight drill holes.

The Sun Dog project is currently under a three-year earn-in option agreement with Aero Energy Ltd.

Atlantic and Rocas projects

MWH Geo-Surveys (Canada) completed high-resolution ground gravity surveys along known conductive exploration trends on the Rocas project, spanning the central claims of the Atlantic project. Inversion and modelling of high-resolution ground gravity surveys were completed for each project, identifying density-low anomalies coincident with surface mineralization, lakebed geochemical anomalies, EM conductors and crosscutting faults.

These results have led to the delineation of new anomalous zones and drill targets.

Corvo project

Earlier this year, the company engaged Axiom Exploration Group Ltd., in partnership with New Resolution Geophysics, to complete a helicopter-borne Xcite time-domain electromagnetic and magnetic survey over the Corvo project. The survey outlined several kilometres of bedrock conductors and magnetic features, and enhanced the resolution of over approximately 29 kilometres of conductive trends.

In July of 2025, Standard Uranium completed the company's first prospecting and mapping program on the project with the objective of ground-truth sampling historical uranium showings including the Manhattan showing, which returned results up to 59,800 parts per million uranium (total digestion). The company identified zones of off-scale radioactivity and collected hand samples which returned results ranging from 0.72 per cent to 8.10 per cent U3O8, the highest grades ever reported on the project. New drill targets were developed based on previously undocumented radioactive showings, and a National Instrument 43-101 technical report was filed on the project, highlighting high-grade surface mineralization at the Manhattan showing.

A high-resolution ground gravity survey is planned to be completed in 2026, which will cover the main conductive trends to identify potential hydrothermal alteration halos commonly associated with basement-hosted uranium mineralization. This additional data will further refine drill targets.

The Corvo project is currently under a three-year earn-in option agreement with Aventis Energy Inc.

Rocas project

In September of 2025, Standard Uranium completed a detailed prospecting and mapping program on the project. Historical grab sample assays have returned up to 0.498 per cent U3O8 while preliminary results of the prospecting and mapping program identified anomalous radioactivity up to 33,000 counts per second, as well as 10 separate measurements of greater than 10,000 cps. Geochemical assay results are anticipated in the coming months.

Paired with the results from a high-resolution ground gravity survey completed in 2024, this highlights potential alteration halos and identifies high-priority exploration targets along well-defined structural corridors.

The Rocas project is currently under a three-year earn-in option agreement with Collective Metals Inc.

Incentive grant

The company also announces that it has granted a total of 1,475,000 incentive stock options and 3.35 million restricted share units to certain directors, officers and consultants in accordance with its omnibus incentive plan. The options vest and become exercisable in five equal parts, with the first 20 per cent vesting upon the date of grant and each additional 20 per cent vesting every three months over a 12-month period. The options are exercisable at a price of 11 cents until Nov. 6, 2030. The RSUs will vest and settle in common shares of the company on Nov. 6, 2026, provided the holder continues to be eligible as of that date.

Qualified person statement

The scientific and technical information contained in this news release has been reviewed, verified and approved by Sean Hillacre, PGeo, president and vice-president, exploration, of the company, a qualified person as defined in NI 43-101 (Standards of Disclosure for Mineral Projects).

Historical data disclosed in this news release relating to sampling results from previous operators are historical in nature. Neither the company nor a qualified person has yet verified these data; therefore, investors should not place undue reliance on such data. The company's future exploration work may include verification of the data. The company considers historical results to be relevant as an exploration guide and to assess the mineralization, as well as economic potential of exploration projects. Any historical grab samples disclosed are selected samples and may not represent true underlying mineralization.

About Standard Uranium Ltd.

Standard Uranium is a uranium exploration company and emerging project generator poised for discovery in one of the world's premier uranium districts. The company holds interest in over 235,435 acres (95,277 hectares) in the Athabasca basin in Saskatchewan, Canada. Since its establishment, Standard Uranium has focused on the identification, acquisition and exploration of Athabasca-style uranium targets with a view to discovery and future development.

Standard Uranium's Davidson River project, in the southwestern part of the Athabasca basin, Saskatchewan, comprises 10 mineral claims over 30,737 hectares. Davidson River is highly prospective for basement-hosted uranium deposits due to its location along trend from recent high-grade uranium discoveries. However, owing to the large project size with multiple targets, it remains broadly undertested by drilling. Recent intersections of wide, structurally deformed and strongly altered shear zones provide significant confidence in the exploration model, and future success is expected.

Standard Uranium's eastern Athabasca projects comprise over 43,185 hectares of prospective landholdings. The eastern basin projects are highly prospective for unconformity-related and/or basement-hosted uranium deposits based on historical uranium occurrences, recently identified geophysical anomalies and location along trend from several high-grade uranium discoveries.

Standard Uranium's Sun Dog project, in the northwestern part of the Athabasca basin, Saskatchewan, is composed of nine mineral claims over 19,603 hectares. The Sun Dog project is highly prospective for basement- and unconformity-hosted uranium deposits, yet remains largely untested by sufficient drilling, despite its location proximal to uranium discoveries in the area.

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