NexGen has reported a 23% increase in the vertical extent of its primary high-grade subdomain at Patterson Corridor East, growing from 335 m to 412 m with a 210 m strike length. The overall mineralized footprint has also expanded to 700 m in vertical extent (up from 600 m) and 620 m in strike length (up from 600 m), with both dimensions remaining open for further growth. A new high-grade subdomain has been identified at 850 m below surface, marking the deepest confirmed zone to date and highlighting the potential for additional high-grade uranium mineralization at depth. In 2025 NexGen completed 35,366.2 m of drilling at PCE—the largest program in the Athabasca Basin that year—bringing the discovery’s cumulative total to 69,042.2 m over 102 drill holes, 67 of which intersected mineralization and 45 of which returned high-grade readings exceeding 10,000 cps on scintillometer measurements.

The Company has launched its largest-ever exploration program at the PCE discovery, with 42,000 m of diamond drilling planned for 2026 focused on further high-grade growth and system extents. At least eight 200 m-spaced step-out holes will test for repetitions of basement-hosted mineralization approximately 600 m southeast of the current PCE footprint. In parallel, NexGen will undertake inaugural drilling on its 100%-owned SW3 property, allocating 3,500 m to greenfields testing of high-priority geophysical targets. This dual-track program builds on the successful 2025 campaign and positions NexGen to systematically expand both the high-grade subdomains and the broader mineralized system across its dominant land package in the southwest Athabasca Basin.