IsoEnergy Ltd.
For the period ended Dec 31, 2025. Filed Feb 27, 2026.
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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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Contents
EX-99.1 · 2022 Drill Program
2022 Drill Program
Consolidated Uranium drilled eight combined rotary and diamond drill holes at the Tony M Mine during May and June 2022, with the objective to confirm the previously reported results of historical drill holes completed by Plateau in the mid-to late 1970s. All of the Consolidated Uranium drill holes were situated in areas of uranium mineralization within the Tony M portion of the property in Section 16, Township 35 South, Range 11 East. The drilling and associated surface work (site preparation and access trails to drill sites) was covered by an existing permit issued by the State of Utah Division of Oil, Gas and Mining.
The Consolidated Uranium drill holes were designed to confirm the stratigraphic position of uranium mineralization, the relative thicknesses of mineralized intervals, and the range of uranium grades that were encountered in the historical drill holes. Each of the eight Consolidated Uranium drill holes was located within approximately 20 feet of the pre-existing drill holes. The holes ranged from 200 to 375 feet in depth and included 2,555 feet of “conventional” open hole rotary drilling and 439 feet of core. As was the practice with the historical drilling, all of the 2022 drill holes were vertical in orientation (-90o) and no deviation data was collected.
The eight holes drilled by Consolidated Uranium in 2022 were collared in the “upper rim” of the Salt Wash. The holes were drilled with a tri-cone rotary method to the top of the “lower rim” of the Salt Wash, approximately 400 feet from surface. The dry cuttings returned were collected in 5-foot intervals and logged for lithology by Consolidated Uranium personnel.
When the core point was reached, a traditional 3-in split barrel coring technique was employed to core the entire lower rim of the Salt Wash. The core was drilled in 20ft runs which were moved from the splits to PQ size core boxes by hand. The core was measured and marked by Consolidated Uranium personnel and logged for lithology, geotechnical properties, and mineralization. The core boxes were stored in a locked warehouse on the Tony M Mine. No assays were collected from drill hole CUR-TM1 due to poor core recovery. No other additional exploration work has occurred on the property since Consolidated Uranium acquired the Tony M Mine in 2021.
As of the effective date of the Tony M Technical Report, Consolidated Uranium and its predecessor companies had completed approximately 2,000 rotary holes and 57 core drill holes over the Tony M Mine, of which 947,610 ft of drilling in 1,678 holes was used in the Tony M Resource Estimate.
The author of the Tony M Technical Report is not aware of any drilling, sampling or recovery factors that could materially impact the accuracy and reliability of the results.
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