Key highlights

  • NexGen reported that the vertical extent of the PCE high-grade subdomain increased by 94 m, or 17%, to 644 m, in a release dated 24 August 2026.
  • Holes RK-26-290c1 and RK-26-294 were described as the two best holes of 2026, and a fifth drill rig is being added.
  • A total of 20,138.7 m has been drilled in 2026 against a planned 42,000 m, with assay results from the SRC laboratory to follow.

Nexgen Energy (Canada) Ltd (ASX:NXG) shares were changing hands at $12.19, up 0.50%, during the Trading session on 21 October 2026. Across the broader market, the S&P/ASX 200 Energy [XEJ] index stood at 11,167.20, a gain of 0.014% (1.60 points), while the S&P/ASX 200 [XJO] was at 8,806.90, lower by 0.11% (10.00 points), as at 2:32 pm GMT+11. In Commodity markets, Brent Crude rose 0.60% to US$109.48 per barrel as tensions in the Middle East involving Iran, Saudi Arabia and Yemen’s Houthis persisted, and a reported fall in US oil inventories pointed to tighter Supply conditions. NexGen is a Canadian uranium development company, listed on the TSX, NYSE and ASX, that is developing the Rook I Project in Saskatchewan’s Athabasca Basin.

What NexGen Energy does

NexGen Energy Ltd is a uranium exploration and development company focused on the Athabasca Basin in northern Saskatchewan, Canada. Its Rook I Project is under construction, and the company is also exploring the Patterson Corridor East (PCE) discovery. NexGen is listed on the TSX and NYSE under the ticker NXE and on the ASX as NXG.

Uranium is used as fuel for nuclear power generation, and companies at the development stage generally report drilling and construction progress rather than sales revenue.

High-grade subdomain expansion

In a release dated 24 August 2026, NexGen announced results from the early portion of its 2026 summer drilling at PCE. Hole RK-26-293 intersected a cumulative 4.7 m of mineralisation above 10,000 counts per second, including 0.1 m above 61,000 cps at 930 m depth. This increased the vertical extent of the high-grade subdomain by 94 m to 644 m, a 17% increase. The strike extent remained at 210 m because recent tests focused on confirming deep-seated interpretations.

The company noted that the zone is accompanied by broad hydrothermal alteration and that mineralisation remains open, particularly below the entire high-grade subdomain.

Down-plunge and continuity results

Hole RK-26-290c1, a down-plunge test, intersected multiple stacked uranium veins across 40 m of the high-grade subdomain, with a cumulative 19.5 m above 10,000 cps, including 12.9 m above 10,000 cps surrounding 5.2 m above 61,000 cps. NexGen described it as the best hole at PCE to date based on intervals above 61,000 cps.

Hole RK-26-294 intersected a cumulative 6.9 m above 10,000 cps, including 3.1 m above 61,000 cps, located 27 m along strike from RK-24-222, which previously returned 17.0 m at 3.85% U3O8. Hole RK-26-296 intersected a cumulative 3.5 m above 10,000 cps, including 0.4 m above 61,000 cps, and expanded the shallowest portion of PCE by 50 m along strike. The company noted that the bulk of the PCE high-grade subdomain is 70 m shallower than the A2 High-Grade Zone.

Drilling program and fifth rig

Drilling at PCE recommenced on 28 May 2026. To date, 20,138.7 m has been completed from a planned 42,000 m, including eleven holes totalling 7,425.2 m this summer. NexGen is adding a fifth drill rig for the remainder of the 2026 program, and additional tests of a parallel trend are planned. Samples are submitted to the independent Saskatchewan Research Council Geoanalytical Laboratory, with further results to follow.

About the PCE discovery and the measurement used

The release reports mineralisation intensity using counts per second from a radiometric probe, with thresholds of 10,000 cps and 61,000 cps used to describe high-grade intervals. These readings are used to guide drilling decisions while chemical assays are processed by the independent laboratory. The release refers to interpreted three-dimensional models and long sections showing the position of new holes within the PCE footprint, and it notes that the A2 High-Grade Zone is a reference point for depth comparisons.

The company also stated that additional tests of a parallel trend at PCE are planned during the remainder of the summer program, in addition to the continuing work on the high-grade subdomain.

Sector context

Uranium developers report exploration and construction milestones ahead of production, and market attention commonly follows uranium prices and nuclear power policy. During the session the S&P/ASX 200 Energy index was at 11,167.20 and Brent crude was at US$109.48 per barrel, with Middle East tensions and tighter US inventories shaping broader energy-market commentary.

Risks and uncertainties

Radiometric readings in counts per second are preliminary indicators and are not the same as assay grades, which are still to be received from the laboratory. Drilling results do not establish a resource estimate, and the 2026 program is only partly complete. Construction of Rook I, permitting, financing, cost changes, weather, uranium prices and general project execution risks apply, and the release is dated 24 August 2026, so later developments may differ.

Catalysts to watch

Milestones include assay results from the SRC laboratory, results from the remaining program toward 42,000 m, additional tests of the parallel trend at PCE, the performance of the fifth drill rig and construction progress at the Rook I Project.

Closing perspective

NexGen’s 24 August 2026 release outlined a larger high-grade subdomain at PCE and an expanded drilling effort. Laboratory assays and further drilling will determine what additional information the company can report.