Mr. Jon Bey reports

STANDARD URANIUM INITIATES WINTER DRILL PROGRAM AT CORVO URANIUM PROJECT, SOUTHEAST ATHABASCA BASIN

Drilling activities have commenced at Standard Uranium Ltd.'s 12,364-hectare Corvo uranium project, located near Wollaston Lake in northeastern Saskatchewan. Field crews arrived at the project on Feb. 6 and drilling commenced on schedule, Feb. 9.

The project is currently under a three-year earn-in option agreement with Aventis Energy Inc. Pursuant to the option agreement, Aventis has been granted an option to earn a 75-per-cent interest in the project by financing $6-million in exploration expenditures over three years. The drill program will be financed by Aventis and operated by Standard Uranium.

Highlights:

• Drilling under way: Drilling activities began on Feb. 9, 2026. Approximately 2,500 to 3,000 metres are planned across eight to 10 drill holes targeting shallow high-grade* basement-hosted uranium mineralization, beginning with the Manhattan target area. The program is anticipated to span five to six weeks.
• Robust and shallow drill targets: Drill plans comprise road-accessible skid-supported diamond drilling focused on high-priority uranium targets refined by geophysical work completed by the company in 2025, bolstered by recent prospecting and confirmation of strong radioactivity at surface (up to 8.10 per cent U3O8 grab samples at Manhattan (1)) within ideal uranium host rocks.
• Untapped uranium potential: One diamond drill will focus on high-priority target areas along prospective Xcite electromagnetic (EM) corridors overlain by high-resolution ground gravity data with the proven exploration thesis of focusing on major conductor trends associated with cross-cutting faults and surficial radioactivity expressions.
• Fully financed: Aventis Energy will finance 100 per cent of the program to meet the year 1 expenditure requirements under the option.

"The team and I are thrilled to announce that the drill is spinning on the Corvo project for the first time in more than 40 years, kicking off our winter exploration season," said Sean Hillacre, president and vice-president of exploration for the company. "This program also marks the first drill holes ever at the Manhattan showing, which returned uranium grades up to 8.10 per cent U3O8 in surface samples from our prospecting program in 2025."

2026 winter drill program

The Standard Uranium team arrived on site on Feb. 9, 2026, and diamond drilling on the first hole at Corvo in more than 40 years is currently under way. The winter program will comprise approximately 2,500 to 3,000 metres of drilling at high-priority target areas following completion of TDEM and ground gravity surveys, and geophysical modelling last year. Corvo covers an area of 12,364 hectares across 14 mineral claims, located along Highway 905 on the eastern margin of the Athabasca basin.

Target selection for 2026 drill campaign

Targets were selected and prioritized through an iterative approach working in collaboration with Convolutions Geoscience Corp. Recent prospecting and mapping across the project outlined multiple outcrops of favourable uranium host rocks, including radioactive metasediments and orthogneiss. Structural measurements and radioactivity mapping have further refined drill targets in the 2026 target areas.

Targets are ranked and prioritized based on geophysical signature, geological/structural setting, proximity to surficial uranium occurrences of interest, and the company's recent prospecting and mapping campaign.

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 of exploration of the company, and a qualified person as defined in National Instrument 43-101, Standards of Disclosure for Mineral Projects.

Samples collected for analysis were sent to SRC Geoanalytical Laboratories in Saskatoon, Sask., for preparation, processing, and ICP-MS (inductively coupled plasma mass spectrometry) or ICP-OES (inductively coupled plasma optical emission spectroscopy) multielement analysis using total and partial digestion and boron by fusion. Radioactive samples were tested using the ICP1 uranium multielement exploration package plus boron. All samples marked as radioactive upon arrival to the lab were also analyzed using the U3O8 assay (reported in weight per cent). SRC is an ISO/IEC 17025:2005- and Standards Council of Canada-certified analytical laboratory. Blanks, standard reference materials and repeats were inserted into the sample stream at regular intervals in accordance with Standard's quality assurance/quality control (QA/QC) protocols. All samples passed internal QA/QC protocols and the results presented in this news release are deemed complete, reliable and repeatable.

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 and 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.

Natural gamma radiation from rocks reported in this news release was measured in counts per second (cps) using a hand-held RS-125 superspectrometer and RS-120 superscintillometer. Readers are cautioned that scintillometer readings are not uniformly or directly related to uranium grades of the rock sample measured and should be treated only as a preliminary indication of the presence of radioactive minerals. The RS-125 and RS-120 units supplied by Radiation Solutions Inc. (RSI) have been calibrated on specially designed Test Pads by RSI. Standard maintains an internal QA/QC procedure for calibration and calculation of drift in radioactivity readings through three test pads containing known concentrations of radioactive minerals. Internal test pad radioactivity readings are known and regularly compared with readings measured by the handheld scintillometers for QA/QC purposes.

(1) News release: "Standard Uranium Confirms High-Grade Uranium Mineralization up to 8.10% U3O8 at Surface on the Corvo Project."

* The company considers uranium mineralization with concentrations greater than 1.0 weight per cent U3O8 to be high grade.

** The company considers radioactivity readings greater than 65,535 counts per second (cps) on a hand-held RS-125 superspectrometer to be off-scale.

The company considers radioactivity readings greater than 300 counts per second (cps) on a hand-held RS-125 superspectrometer to be anomalous.

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 241,652 acres (97,793 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 53,166 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, comprises 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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