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IsoEnergy Ltd.

For the period ended Dec 31, 2025. Filed Feb 27, 2026.

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About this filing

The yearly report of certain Canadian companies, filed under a joint US and Canadian system. It is the main yearly account these companies give US investors, largely as filed in Canada.

FY2025 · Filed Feb 27, 2026

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ISOU$8.34+5.7%Stored close · as of Nov 6, 2026
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Contents

EX-99.1 · Current and Planned Work Program

Current and Planned Work Program

The Company’s planned work program at the Tony M Mine in 2026 includes completing the bulk sample program. The Company intends to use the results of the bulk sample program, as well as the completed work programs from prior years, to continue to support its strategy to de-risk the Tony M Mine and improve the economic framework for a potential future production decision. The results of these work programs are intended to provide inputs for a PEA, which will likely begin in 2026 and would include a mine plan, production rates, expected operational costs and capital requirements.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.