(via TheNewswire)

September 24th, 2026 – Vancouver, BC, Canada – TheNewswire - Radiant Uranium Corp. (the “Company” or “Radiant Uranium”) (CSE: RUC, OTCQB: RUCCF, FWB: V0O0) provides the following corporate update.

In parallel with its acquisition strategy, the Company is advancing exploration planning at its Key Lake Road and Gorilla Lake uranium projects. Proposed work referenced in this release includes permitting, line cutting, induced polarization surveys and diamond drilling at Key Lake Road, together with ground truthing and drill permitting at Gorilla Lake. These programs remain subject to required permitting, consultation and final exploration planning.

On August 5th, 2026, the Company changed its name from Kirkstone Metals Corp. to Radiant Uranium Corp. to more accurately reflect its exclusive focus on uranium exploration and discovery.  The recent 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.

Concurrently, the Company transitioned from the TSX Venture Exchange to the Canadian Securities Exchange (“CSE”). Management believes the CSE provides a more entrepreneurial platform for Radiant Uranium’s current growth strategy and its objectives of evaluating and, where appropriate, completing additional acquisitions as the Company continues to expand its uranium project portfolio.

Radiant Uranium’s strategy is to combine the acquisition of uranium assets with systematic exploration of its existing Athabasca Basin portfolio. Management’s near-term objective is to advance the highest-priority targets toward clearly defined technical milestones while continuing to evaluate acquisition opportunities that can strengthen the Company’s uranium portfolio.

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

Current information on the Company’s activities, new release, regulatory filings and other pertinent information can be found at our new web address www.radianturanium.com , as well as our social media accounts:

https://www.facebook.com/radiantucorp

https://www.instagram.com/radiantucorp
https://x.com/radiantucorp
https://linkedin.com/company/radiantucorp

The Company’s common shares trade on the CSE 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 eligible in the United States.

0.0.ii. About Radiant Uranium Corp.

Radiant Uranium Corp . 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.

For more information, please visit the website at www.radianturanium.com or contact the Company at (778) 898-7917 or email: info@radianturanium.com .       

On Behalf of the Board of Directors of Radiant Uranium Corp.

Clive Massey

Chief Executive Officer

(604) 341-6870 (office)

For further information, please contact:

Investor Relations, James Romano

Tel: 1 (778) 898-7917

Neither the Canadian Securities Exchange (“CSE”) nor its Regulation Services Provider (as that term is defined in the policies of the CSE) accepts responsibility for the adequacy or accuracy of this release.

Forward-Looking Statements

This news release contains “forward-looking information” and “forward-looking statements” (collectively, “forward-looking statements”) within the meaning of applicable Canadian securities legislation. All statements, other than statements of historical fact, are forward-looking statements and are based on expectations, estimates and projections as at the date of this news release. Forward-looking statements are generally identifiable by use of the words “expects,” “plans,” “anticipates,” “believes,” “intends,” “estimates,” “projects,” “potential,” “scheduled,” “targeted,” “will,” “would,” “may,” “could,” “should” or similar expressions, and the negative thereof, though the absence of such words does not mean a statement is not forward-looking.

Forward-looking statements in this news release include, but are not limited to, statements relating to: the Company’s planned exploration activities at the Cross Lake, Key Lake Road and Gorilla Lake uranium projects, including proposed permitting, line cutting, induced polarization surveys, diamond drilling, airborne electromagnetic surveys, and ground truthing programs; the anticipated results and utility of such exploration programs; the Company’s plans for consultation with First Nations and stakeholders; the Company’s business strategy, objectives and future plans; and the exploration potential of the properties. Forward-looking statements are based on certain assumptions and analyses made by the Company in light of the experience and perception of historical trends, current conditions and expected future developments, as well as other factors the Company believes are appropriate, and are subject to risks and uncertainties. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in the forward- looking statements include, but are not limited to: delays or failure to obtain required permits and regulatory approvals; the outcome of First Nations and stakeholder consultation processes; general economic, market and business conditions; fluctuations in uranium prices and demand; risks inherent in mineral exploration, including environmental and permitting risks; seasonal weather conditions that may delay exploration activities; changes in applicable laws, regulations and government policies; the availability of financing on acceptable terms; the Company’s ability to retain qualified personnel and contractors; geopolitical instability and its impact on commodity markets; and other risks and uncertainties described in the Company's public filings with applicable Canadian securities regulators, available on SEDAR+ at www.sedarplus.ca.

The forward-looking statements contained in this news release represent the expectations of the Company as of the date hereof and are subject to change after such date. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law. Readers are cautioned not to place undue reliance on forward-looking statements.

Copyright (c) 2026 TheNewswire - All rights reserved.