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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 620 m in strike length and 700 m vertical extent. As of the end of the 2025 exploration program, 67 of the 102 drillholes are mineralized, including 45 intersecting high-grade (>10,000 cps) and 17 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 12.0 m at 3.46% 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.
  • RK-25-256 intersected 5.5 m at 21.4 % U3O8, including a peak intercept of 0.5 m at 74.8% U3O8.

Interpreted model of mineralization at PCE; new holes emphasized by larger diameter pierce points and bold labels; 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

Geological Characteristics

  • Hydrothermal alteration system analogous to Arrow
  • Semi-massive to massive veins, fracture coatings, and disseminations (peak intercept of 0.5 m at 74.8% 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