Mr. Jason Barnard reports

FOREMOST CLEAN ENERGY ANNOUNCES SUCCESSFUL COMPLETION OF 2025 DRILL PROGRAM AND COMMENCEMENT OF HISTORIC CORE SAMPLING PROGRAM AT ITS JEAN LAKE GOLD-LITHIUM PROJECT

Foremost Clean Energy Ltd. has successfully completed its 2025 diamond drill program at the 100-per-cent-owned Jean Lake gold-lithium property, located near Snow Lake, Man. The program comprised 15 holes totalling 2,266 metres, with assay results from four holes already reported and results from the remaining 11 holes currently pending. Concurrently, the company announces the commencement of a strategic core resampling program that will focus on high-priority drill core from its previous completed 2023 drill program. The focus of this program is to obtain a more comprehensive data set to enhance the geological model due to the potential of improved results and expand the understanding of known mineralization.

Jason Barnard, Foremost's president and chief executive officer, commented: "The completion of our 2025 drill program successfully adds another 2,266 metres of data to the Jean Lake story. While we await these new assays, we are taking the pro-active step of resampling high-priority 2023 core from intervals adjacent to known high-grade intercepts, like the 102 grams per tonne gold in FM23-08. This cost-effective program is designed to fill in geological gaps and has the potential to positively impact our understanding of the mineralized system's scale and continuity. Integrating this new data with all past and pending results will allow us to build the most robust geological model possible as we plan for future drilling."

Postprogram sampling under way

To support continuing geological interpretation, a dedicated sampling crew has remained on site. Resampling will focus on unsampled intervals that may further clarify gold continuity and grade distribution along the Valkyrie trend. A total of six high-priority 2023 drill holes along the Valkyrie trend have been selected for resampling in 2025. These include hole FM23-08, which previously returned 102 grams per tonne gold over 0.5 metre, within 7.50 grams per tonne gold over 7.66 metres (see news release dated June 6, 2023). In addition, one drill hole from the Midas trend, FM23-25, is being resampled. Historical highlights from FM23-25 include 6.86 grams per tonne gold over 0.54 metre, within 2.07 grams per tonne gold over 3.49 metres (see news release dated June 6, 2023).

2025 drill program and next steps

The company's 2025 diamond drill program, comprising 15 holes (JL25-001 to JL25-015), was designed to follow up on the 2023 drill program, to expand the company's understanding of the emerging near-surface gold system along the Valkyrie trend and test the spodumene-bearing B1 pegmatite. Assay results for holes JL25-005 to JL25-015 are pending.

Upon receipt of all outstanding assays and the new resampling data, Foremost will begin a comprehensive update of its geologic and structural model for Jean Lake. This integrated model will combine the 2023 discovery holes, all 2025 assay results and the new resampling data from the 2023 holes. This work will refine priority targets along both the Valkyrie and Midas trends, where mineralization remains untested. The updated model will guide the design for drill targets of an expanded drill program anticipated for 2026.

Coming Webinar on Thursday, Dec. 11, 2025, at 2:30 p.m. ET/11:30 a.m. PT

Join Foremost's president and chief executive officer, Mr. Barnard, as he presents at RedChip's Metals & Mining Virtual Investor Conference on Thursday, Dec. 11, 2025, at 2:30 p.m. ET/11:30 a.m. PT. The conference offers investors a front-row seat to the public companies driving exploration, development and production across the rapidly evolving critical minerals sector.

Qualified person

The technical content of this news release has been reviewed and approved by Cameron MacKay, PGeo, vice-president of exploration for Foremost Clean Energy and a qualified person under National Instrument 43-101.

A qualified person has not performed sufficient work or data verification to validate the historical results in accordance with NI 43-101. Although the historical results may not be reliable, the company nevertheless believes that they provide an indication of the property's potential and are relevant for any future exploration program.

About Foremost Clean Energy Ltd.

Foremost Clean Energy is a rapidly growing North American uranium and lithium exploration company. The company holds an option from Denison Mines Corp. to earn up to 70-per-cent interest in 10 prospective uranium properties (except for the Hatchet Lake, where Foremost can earn up to 51 per cent), spanning over 330,000 acres in the prolific, uranium-rich Athabasca basin region of Northern Saskatchewan. As the demand for carbon-free energy continues to accelerate, domestically mined uranium and lithium are poised for dynamic growth, playing an important role in the future of clean energy. Foremost's uranium projects are at different stages of exploration, from grassroots to those with significant historical exploration and drill-ready targets. The company's mission is to make significant discoveries alongside and in collaboration with Denison through systematic and disciplined exploration programs.

Foremost also has a portfolio of lithium projects at varying stages of development, which are located across more than 55,000 acres in Manitoba and Quebec.

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