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PCE

Patterson Corridor East (PCE)

The uranium occurrence is situated only 3.5 km east of the world-class Tier 1 Arrow Deposit and shares several geological characteristics very analogous to Arrow. Initial results at PCE have indicated an expansive footprint with remarkable continuity of mineralization. Further, the observations of the drill core indicate a large, pervasive hydrothermal system.

The system is open in most directions, with mineralization spanning over 600 m in strike length and 600 m vertical extent. As of summer 2025, 48 of the 79 drillholes are mineralized, including 34 intersecting high-grade (>10,000 cps) and 14 intersecting off-scale (>61,000 cps)

Notable drillholes at PCE to date:

RK-25-232 marks NexGen’s best discovery-phase assay intercept, with 15.0 m at 15.9% U3O8, including a peak intercept of 0.5 m at 68.8% U3O8.
RK-25-207 intersected 9.5 m at 2.91% U₃O₈, including a peak intercept of 0.5 m at 28.2% U₃O₈.
RK-25-222 intersected 17.0 m at 3.85% U₃O₈, including a peak intercept of 3.0 m at 10.1% U₃O₈.
RK-25-227 intersected 11.5 m at 3.61% U₃O₈, including a peak intercept of 0.5 m at 31.0% U₃O₈.
RK-25-244 intersected 17.0 m at 7.6% U₃O₈, including a peak intercept of 0.5 m at 58.1% U₃O₈.
RK-25-254 intersected 10.5 m at 11.3% U₃O₈, including a peak intercept of 0.5 m at 56.2% U₃O₈.

Geological Characteristics

Hydrothermal alteration system analogous to Arrow
Semi-massive to massive veins, fracture coatings, and disseminations (peak intercept of 0.5 m at 68.8% U₃O₈) hosted exclusively within crystalline basement rocks
Well-developed hydrothermal fluid system – hematite, limonite, clay, and chlorite alteration
Formation conditions linked to significant orebodies within the Athabasca Basin

Interpreted model of mineralization at PCE with newly interpreted high-grade shoots shown; view is a long section that looks perpendicular to the primary mineralized plane; total mineralized footprint in orange and the high-grade subdomains in red

2024 & 2025 Discovery Phase Drill programs successfully expanding the high-grade subdomain extents while also expanding the overall mineralized footprint

Drillhole RK-25-232 at PCE marks NexGen’s best discovery-phase assay intercept, with 15.0 m at 15.9% U₃O₈, including a peak intercept of 0.5m at 68.8% U₃O₈
RK-25-254 located 55 m up dip from RK-25-232, returns 10.5 m at 11.3% including 4.0 m at 29.4% and 0.5 m at 56.2% highlighting exceptional continuity within the high-grade subdomain.
RK-25-256 intersects 2.1 m of off-scale (>61,000 cps) located 128 m down dip from RK-25-232.
Results highlight the repetition of upgrading high-grade shoots within growing mineralized footprint.
RK-25-244: 17.0 m at 7.6%, including 6.0 m at 21.1% and 0.5 m at 58.1%

Current Projects