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NexGen Energy Announces Highest-Grade Assay to Date from Patterson Corridor East
RK-25-256 returns 5.5 m at 21.4% U3O8, including 2.5 m at 46.1% U3O8 and including 0.5 m at 74.8% U3O8, Rook I developing a multi-generational portfolio of uran
About this update from Nexgen Energy Ltd.
[{"type":"text","content":" RK-25-256 returns 5.5 m at 21.4% U3O8, including 2.5 m at 46.1% U3O8 and including 0.5 m at 74.8% U3O8, Rook I developing a multi-generational portfolio of uranium projects in the southwest Athabasca Basin, Saskatchewan, Canada. Vancouver, British Columbia--(Newsfile Corp. - December 1, 2025) - NexGen Energy Ltd. (TSX: NXE) (NYSE: NXE) (ASX: NXG) (\"NexGen\" or the \"Company\") is pleased to announce its highest-grade assay results to date at the Company's 100%-owned Patterson Corridor East (\"PCE\") with drill hole RK-25-256. Assays returned 5.5 meters (\"m\") at 21.4% U3O8 between 590.0 and 595.5 m depth, including 2.5 m at 46.1% U3O8 and 0.5 m at 74.8% U3O8 (Figures 1 and 2; Table 1) as well as a separate and adjacent intercept of 1.5 m at 5.28% U3O8. Significantly, this high-grade uranium intersection in RK-25-256 is 119 m down-dip of drill hole RK-25-232, and an additional 51 m down-dip of recently reported (see news release dated November 12, 2025) RK-25-254 (Figure 1 and 3). Overall, intense high-grade uranium mineralization is currently interpreted along a minimum of 215 m of dip extent from RK-25-254 to RK-24-222. Leigh Curyer, Founder & Chief Executive Officer, commented: \"RK-25-256 high-grade assay results, consisting of ultra-high grade 0.5 m 74.8% U3O8 takes PCE into a rare mineralized category on a world scale for uranium deposits. This type of basement-hosted mineralization is synonymous with Arrow, only 3.5 km to the west. It is clear, the frequency of this ultra-high grade category of intercepts at Arrow and now PCE, is evidence of a very significant mineralizing event occurring at Rook I and in the surrounding region of the southwest Athabasca Basin in Saskatchewan. NexGen, with Arrow as the inaugural deposit, is developing a uranium project portfolio which is focused on multi-generational nuclear fuel supply and providing economic, environmental, and social outcomes on a scale not previously witnessed in the industry. NexGen is a central component of delivering Canada's and the world's key critical mineral demand.\" Jason Craven, Vice President, Exploration, commented: \"These exceptional grades significantly elevate our understanding of PCE and offer a glimpse at the growing basement-hosted uranium prospectivity in the southwest Athabasca Basin, where NexGen controls the most prospective portf...