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NexGen Announces New Off-Scale Mineralization Intersected at Patterson Corridor East (PCE) and Continued Expansion of High-Grade Sub Domain

RK-25-254 and RK-25-256 (both intersecting 2.0 and 2.1 m of off-scale (>61,000 cps)) are locat...

articleNexgen Energy Ltd.August 28, 20255/company/nexgen-energy-ltd/news/nexgen-announces-new-off-scale-mineralization-intersected-at-patterson-corridor-east-pce-and-continued-expansion-of-high-grade-sub-domain
NexGen Announces New Off-Scale Mineralization Intersected at Patterson Corridor East (PCE) and Continued Expansion of High-Grade Sub Domain

About this update from Nexgen Energy Ltd.

[{"type":"text","content":"NexGen Announces New Off-Scale Mineralization Intersected at Patterson Corridor East (PCE) and Continued Expansion of High-Grade Sub DomainRK-25-254 and RK-25-256 (both intersecting 2.0 and 2.1 m of off-scale (>61,000 cps)) are located 51 m and 119 m away from RK-25-232 (15 m at 15.9% U3O8).Results highlight the repetition of upgrading high-grade shoots within growing mineralized footprint.The following new holes intersected broad intercepts of cumulative mineralization (>500cps):RK-25-246: 20.5m including 2.5m >10,000cpsRK-25-247: 18.0m including 2.5m >10,000cpsRK-25-251: 9.5mRK-25-254: 19.5m including 5.0m >10,000cps including 2.0m >61,000cpsRK-25-256: 10.0m including 3.3m >10,000cps including 2.1m >61,000cpsVancouver, British Columbia--(Newsfile Corp. - August 28, 2025) - NexGen Energy Ltd. (TSX: NXE) (NYSE: NXE) (ASX: NXG) (\"NexGen\" or the \"Company\") is pleased to announce continued exciting results from the summer drill program at the rapidly advancing PCE. Step-out holes RK-25-254 and RK-25-256 intersected 2.0 m and 2.1 m of cumulative >61,000 counts per second (cps), respectively, located 51 m up-dip and 119 m down-dip of PCE's best hole to date, RK-25-232 (Figures 1 and 2). These represent the best holes from the summer program to date and validate the growth in high-grade continuity. Overall, an upgraded high-grade shoot plunges a minimum 200 m from RK-25-254 to RK-24-222 as part of an emerging interpreted pattern of high-grade shoots spaced 70 m apart (Figures 2 and 3). Depth of the intense high-grade in RK-25-254, at just 454.4 m depth, ranks among the shallowest intersections of massive uranium ever drilled by NexGen. Mineralization is open 300 m up-dip and completely contained in the competent basement rock, consistent with Arrow. Strong continuity of grade across the mineralized footprint is consistent with Arrow's basement-hosted uranium veins.Drilling is also extending deeper where strongly developed alteration and structural disruption persist as key indicators of additional mineralization. Further significant expansion potential at PCE remains with mineralization open in most directions.A total to 21,968.9 m of the planned 43,000m program has been drilled in 2025. Since discovery (see March 11, 2024, news release), 79 drillholes totalling 53,088.9 m have been completed (Figur...

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