Mr. Thomas Lamb reports

MYRIAD URANIUM ANNOUNCES EXPIRATION OF LETTER OF INTENT RESPECTING PROPOSED MERGER

Myriad Uranium Corp.'s previously announced letter of intent dated as of Aug. 6, 2025, respecting a merger transaction between Myriad and Rush Rare Metals Corp. has expired. Myriad and Rush continue to be in contact respecting a potential transaction on mutually acceptable terms.

Myriad's chief executive officer, Thomas Lamb, commented: "Because the parties have not executed a definitive agreement, the LOI has expired in accordance with its terms. However, the parties continue to work towards a mutually acceptable agreement and are optimistic that a deal will be reached in due course."

About Myriad Uranium Corp.

Myriad Uranium is a uranium exploration company with an earnable 75-per-cent interest in the Copper Mountain uranium project in Wyoming, United States. A recent press release discussing the 1982 U.S. Department of Energy assessment of Copper Mountain's uranium endowment can be viewed on-line. Copper Mountain hosts several known uranium deposits and historic uranium mines, including the Arrowhead mine, which produced 500,000 pound of triuranium octoxide. Copper Mountain saw extensive drilling and development by Union Pacific during the late 1970s including the development of a mine plan to fuel a planned fleet of California Edison reactors. Operations ceased in 1980 before mining could commence due to falling uranium prices. Approximately 2,000 boreholes have been drilled at Copper Mountain, and the project area has significant exploration upside. Union Pacific is estimated to have spent $117-million (2024 dollars) exploring and developing Copper Mountain, generating significant historical resource estimates. The company also recently acquired, subject to completing a geophysical survey this year, a 100-per-cent interest in the Red Basin uranium project in New Mexico, which has extensive near-surface uranium mineralization and significant upside potential.

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