Mr. Clive Massey reports

RADIANT URANIUM OUTLINES FULLY FUNDED PHASE 1 & 2 EXPLORATION PROGRAM AT CROSS LAKE

Radiant Uranium Corp. has provided the following exploration plan for the 2,048-hectare Cross Lake property, lying southwest of the historic Key Lake mine in Northern Saskatchewan.

Radiant Uranium will commence a fully financed ground program to confirm historic exploration results and refine target areas at Cross Lake in advance of diamond drilling planned for the first half of 2027.

Cross Lake exploration program:

• Phase 1 will consist of ground radiometric surveying and selective short-hole drilling to test for extensions of the mineralized zone and confirm grade.
• Phase 2 will consist of high-definition IP surveying to better define the geometry and extent of mineralization.
• Concurrently, Radiant will commence consultation and permitting in advance of the planned H1 2027 drilling program.
• The fully financed phases 1 and phase 2, along with consultation and permitting, are budgeted at approximately $325,000.

The Cross Lake uranium mineralization is associated with pegmatitic garnetiferous gneiss along a 2.4-kilometre northeast-trending structural lineament, with mineralized zones identified at the Narrows, Portage and Cross uranium showings. Historic work at the Narrows zone outlined mineralization over a true width of approximately 11 to 15.8 metres, with drilling testing the zone to a depth of about 75 metres. This work resulted in a 1979 historic estimate of 371,038 pounds U3O8 (triuranium octoxide) at an average grade of 1.2435 pounds per tonne to a depth of 75 metres.

Clive Massey, chief executive officer of Radiant Uranium, commented: "With phases 1 and 2 fully funded, our objective is to systematically build on the historical work at Cross Lake and generate the technical information required to refine priority targets for diamond drilling. Historical drilling tested the Narrows zone to approximately 75 metres depth while uranium mineralization is associated with a broader 2.4-kilometre structural lineament. The phased approach is designed to evaluate the known mineralization and test its potential extensions in a disciplined manner."

These historic estimates were disclosed in "Bralorne Resources Ltd., 1979 Winter Drilling of the Narrows Zone ML 5255 (Formerly CBS 1074), Foster River Area, Saskatchewan," written by Rene Bissonnette and dated May 12, 1979.

The estimate is relevant as it attests to the potential of the Cross Lake property and reliable as it was completed by geologists trained to the standards of the day. The historical estimate author noted that, although the drilling was not detailed enough to prove the structure nor to estimate proven reserves, possible reserves based on the grades and thicknesses of the mineralized intersections from the drill holes and the interpreted structure have been conservatively estimated. Each drill intersection is lettered, with a block shown for the better intersections. The dimensions of each block are based on the following parameters: (1) true thickness of the mineralized zone (width): core length of the mineralized section corrected for the dip of the layer and the inclination of the drill hole; and (2) length of the mineralized zone (length): one-half the distance between each mineralized intersection on the 50-metre plan and five metres beyond the last significant mineralized intersection in the zone. As the bottom of the deepest intersection of the best mineralized zone is in drill hole 41-3 at a vertical depth of 71 metres, 330,000 tonnes corresponding with a vertical depth of 75 metres appear reasonable. The historical estimate would be comparable with an inferred resource. The company is not aware of a more recent historical estimate, though a small drill program in 2008 by Uracan Resources Ltd. did confirm the presence of uranium in the area of the historical estimate. Twinning of a number of holes and infill drilling would be required to move the historical estimate to a current mineral resource.

Radiant Uranium cautions investors that a qualified person has not done sufficient work to classify the historical estimate as current mineral resources or mineral reserves and further cautions that Radiant Uranium is not treating the historical estimate as current mineral resources or mineral reserves.

As previously announced, the addition of the Cross Lake uranium project reflects the company's strategy of building a portfolio with exploration upside in the Athabasca basin. Radiant Uranium continues to evaluate additional acquisition opportunities while advancing exploration activities across its existing project portfolio.

The technical information in this news release has been reviewed and approved by Tim Henneberry, PGeo, a qualified person as defined under National Instrument 43-101, Standards of Disclosure for Mineral Projects, who is a director of the company.

The company's common shares trade on the Canadian Securities Exchange under the symbol RUC, on the OTCQB under the symbol RUCCF and on the Frankfurt Stock Exchange under the symbol V0O0, providing shareholders in multiple jurisdictions with access to the company's shares. The company's common shares are fully DTC (Depository Trust Company) eligible in the United States.

About Radiant Uranium Corp.

Radiant Uranium is a Canadian mineral exploration company focused on uranium assets that support the global transition to reliable, clean energy. The company's flagship project, the Cross Lake uranium project, is located within Saskatchewan's prolific Athabasca basin -- one of the world's premier uranium districts. Radiant Uranium is committed to responsible exploration, detailed technical work and value creation for shareholders through disciplined capital allocation and market engagement.

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