Advancement Of Uranium Mines Toward Potential Production

TORONTO - IsoEnergy Ltd. reported the commencement of key work programs at its Tony M Mine, one of its three fully permitted uranium mines in the United States, intended to support a potential near term restart decision which could establish the Company as one of a select group of U.S. uranium producers. The Company has initiated several work programs at the Tony M Mine that are expected to optimize operational readiness and reduce future production costs, while maintaining strategic flexibility to potentially restart operations quickly as market conditions continue to improve. With all required permits in place, fully developed infrastructure, and a toll milling agreement with Energy Fuels Inc. at the nearby and fully operational White Mesa Mill, the Company is well positioned to bring Tony M, as well as the Rim and Daneros Mines, back into production on an accelerated timeline.

Philip Williams, CEO and Director, said, "Momentum is accelerating across the U.S. nuclear industry, yet a significant gap remains between domestic uranium supply and growing demand. We believe IsoEnergy is uniquely positioned to help close this gap with a portfolio of past-producing uranium mines and a large-scale development project in the United States. Leading the way is the Tony M Mine in Utah, a past producer that was reopened and rehabilitated in 2024. With all key operating permits in place and a toll milling agreement secured with the White Mesa Mill, Tony M is the most advanced and de-risked uranium asset in our U.S. portfolio. As we move forward, our focus is on optimizing project economics through a series of technical studies. These efforts will inform a potential production decision, targeted for later this year, aligning IsoEnergy's near-, mid-, and long-term strategy with the urgent need for secure, domestic uranium supply."