Mr. Philip Williams reports

ISOENERGY ANNOUNCES SHARE CONSOLIDATION IN CONNECTION WITH APPLICATION TO LIST ON THE NYSE AMERICAN

IsoEnergy Ltd.'s board of directors has approved the consolidation of the company's issued and outstanding common shares on the basis of one postconsolidation common share for every four preconsolidation common shares. The consolidation is being implemented in connection with the company's application to list its common shares on the NYSE American. Subject to the review and approval of the company's listing application and the satisfaction of all applicable listing and regulatory requirements, the company expects that the common shares will commence trading on the NYSE American early in the second quarter of 2025.

Philip Williams, chief executive officer and director of IsoEnergy, commented: "Applying to list on the NYSE American is a significant step in IsoEnergy's capital markets strategy, with a view to aligning with our U.S.-listed [United States] peers and enhancing our visibility among a broader investor base. With a robust portfolio that includes the highest-grade published indicated uranium resource in Canada's Athabasca basin at our Hurricane deposit, past-producing U.S. uranium mines in Utah, which we are readying for potential rapid restart, and the largest undeveloped uranium deposit in the U.S. at Coles Hill in Virginia, this move is essential to remaining competitive in the evolving uranium equity market. As we advance our projects, we believe this listing will provide greater exposure to U.S. investors, enhance trading liquidity and position IsoEnergy to capitalize on the increasing demand for North American uranium supply."

The consolidation was approved at the special meeting of shareholders of the company held on Dec. 3, 2024. The consolidation is subject to approval by the Toronto Stock Exchange (TSX) and is expected to become effective on March 20, 2025, with the postconsolidation common shares to commence trading on the TSX at market open on March 24, 2025, subject to final confirmation from the TSX. No fractional postconsolidation common shares will be issued in connection with the consolidation. Any fractional postconsolidation common share arising from the consolidation will be deemed to have been tendered by its registered owner to the company for cancellation and no consideration. The exercise or conversion price and/or the number of common shares issuable under any of the company's outstanding convertible securities will be proportionately adjusted in connection with the consolidation.

It is anticipated that upon completion of the consolidation, the postconsolidation common shares will continue to trade on the TSX under the stock symbol ISO as well as under a new Cusip number (46500E867) and a new international securities identification number (CA46500E8678).

Registered shareholders of the company holding their preconsolidation common shares in certificate form as of the effective date will receive a letter of transmittal from the company's transfer agent, providing instructions for the exchange of their preconsolidation common shares as soon as practicable following the effective date. Until surrendered, each share certificate representing preconsolidation common shares will represent the number of whole postconsolidation common shares to which the holder is entitled as a result of the consolidation. Registered shareholders of the company holding their preconsolidation common shares in DRS (direct registration statement) advice form as of the effective date will receive their postconsolidation common shares automatically within three business days after the effective date with no requirement to complete the letter of transmittal. No action is required by beneficial shareholders of the company to receive postconsolidation common shares in connection with the consolidation. Beneficial shareholders who hold their preconsolidation common shares through intermediaries (such as a broker, bank, trust company investment dealer or other financial institution) and who have questions regarding how the consolidation will be processed should contact their intermediaries with respect to the consolidation.

As of the date of this news release, the company has 192,310,581 common shares issued and outstanding. Following the completion of the consolidation, the company is expected to have approximately 48,077,577 common shares issued and outstanding, subject to rounding.

About IsoEnergy Ltd.

IsoEnergy is a leading, globally diversified uranium company with substantial current and historical mineral resources in the top uranium mining jurisdictions of Canada, the United States and Australia at varying stages of development, providing near-term, medium-term and long-term leverage to rising uranium prices. IsoEnergy is currently advancing its Larocque East project in Canada's Athabasca basin, which is home to the Hurricane deposit, boasting the world's highest-grade indicated uranium mineral resource.

IsoEnergy also holds a portfolio of permitted, past-producing, conventional uranium and vanadium mines in Utah, with a toll milling arrangement in place with Energy Fuels. These mines are currently on standby, ready for rapid restart as market conditions permit, positioning IsoEnergy as a near-term uranium producer.

We seek Safe Harbor.