NexGen Energy Ltd. is pleased to announce the concluding holes of the 2025 PCE program and the commencement of the 2026 Exploration Program.
Final drill holes of the 2025 PCE program delivered continued expansion of mineralisation with high-grade growth and assessment of extents advancing significantly since the Company’s last scintillometer report. The primary high-grade subdomain grew to 412 m in vertical extent (increase of 77 m) and a strike length of 210 m. An additional high-grade subdomain is developing with hole RK-25-257 intersecting local off-scale (>61,000 cps) at the base of the currently outlined mineralised footprint, indicating significant expansion potential at depth.
The overall mineralised footprint expanded to 620 m (increase of 20 m) of strike length and 700 m (increase of 100 m) of vertical extent, remaining open in most directions. Step out testing has provided critical information regarding extents of the system and opportunities for continued growth.
Internal continuity within the subdomain was most recently highlighted by RK-25-271 with 5.8 m of cumulative high-grade (>10,000 cps) and 0.8 m of off-scale (>61,000 cps) that increases the mineralised zone in the lower half of this subdomain (Figure 3, Table 1). Hole RK-25-271 is located 65 m down-dip from hole RK-25-256 (see news release dated December 1, 2025) which returned 5.5 m at 21.4% U3O8, including 2.5 m at 46.1% U3O8 and 0.5 m at 74.8% U3O8.
The 2025 drilling program successfully completed 35,366.2 m, the largest reported in the Athabasca Basin in 2025. Since discovery (see news release date March 11, 2024), 102 drillholes totalling 69,042.2 m have been completed (Figure 1). A dual focused approach was taken in 2025 to both grow and define multiple high-grade subdomains as well as expand the overall mineralised footprint. To date, 67 of the 102 drill holes are mineralised, including 45 intersecting high-grade (>10,000 cps) and 17 intersecting off-scale (>61,000 cps).
Drilling activity will primarily focus on high-grade growth and the continued expansion of the mineralised footprint. At least eight (8), 200 m spaced tests will also investigate for repetition of basement-hosted mineralisation within the same hydrothermal system approximately 600 m southeast of the PCE discovery.
An inaugural, drill program will take place on the SW3 land package with regional greenfield testing of highly prospective target areas. This marks the first drilling on any SW3 mineral claims by NexGen and an exciting step in the direct investigation of geophysical anomalies identified. The SW3 package is one of the three core packages NexGen owns 100% of in the southwest Athabasca Basin and is situated 20 km southeast of the SW2 package which hosts the Rook I Project.
Leigh Curyer, Chief Executive Officer, commented: “We are extremely pleased with the 2025 outcomes from the 2025 drill program at PCE that delivered on our dual-purpose objectives of expanding the overall mineralised footprint and expand the high-grade subdomain within it. These results systematically outline mineralisation that continues to deliver growth and strong continuity, characteristics synonymous with Arrow deposit 3.5 km west. The 2025 drill program has rapidly advanced this new discovery, while underscoring the tremendous prospectivity of NexGen’s 100% owned dominant land holdings which is driving the expanded activity in 2026. The 2026 program is designed to continue the dual track focus at PCE and in parallel, test for a repetition of PCE within the same system. In addition, drilling for the first time at our SW3 property is a reflection of the south western section of the Athabasca Basin world class prospectivity.
“At a pivotal moment for global energy security, nuclear power is being recognised as an indispensable pillar for reliable, clean, cost efficient energy. The NexGen team is laser focused on concluding the final Federal permitting and licensing for the Rook I Project and immediately advancing through construction into production whilst simultaneously advancing the exciting PCE discovery and other high priority targets.”
Jason Craven, Vice President, Exploration, commented: “Last year’s highly transitional and successful program positions NexGen to enter 2026 with an even deeper understanding of this broad and growing high-grade system. A multitude of targets remain to be tested as we continue to systematically advance PCE with a dual priority track of expanding both the high-grade subdomains as well as the overall mineralised system. The comprehensive 2026 program strategically positions all three land packages on an exciting path toward expansion of PCE as well as additional discoveries as NexGen works to sustainably supply the world with uranium in the face of mounting and persistent deficits.”
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