Six of eight uranium drilling holes found mineralisation
Uranium drilling at ATHA Energy’s Angilak project in Nunavut returned a 37.0 metre composite mineralised intersection at RIB North, the widest result reported so far from the discovery area.
Results from the first eight diamond drillholes in the 2026 Angilak Exploration programme outlined continuity over 300 metres along strike from maiden hole RIBN-DD-001. Six of the eight holes intersected uranium mineralisation.
ATHA is using widely spaced step-out holes to test continuity at RIB North. However, the discovery remains open in all directions.
Drillhole RIBN-DD-003 delivered the strongest result, about 120 metres northwest of RIBN-DD-001. It intersected 37.0 metres of total composite uranium mineralisation across 15 zones from 541.7 metres to 652.0 metres.
Within RIBN-DD-003, the widest interval measured 8.5 metres from 541.7 metres to 550.2 metres.
Another zone in RIBN-DD-003 ran 4.5 metres from 571.7 metres to 576.2 metres. It averaged 4,589 CPS and peaked at 14,773 CPS, including more than 1.0 metre of high-grade mineralisation.
RIBN-DD-008 western limb discovery
Elsewhere, ATHA identified a secondary east-west mineralised structure on the western limb of the Mineralized RIB Corridor, about 1 kilometre from the main RIB North discovery area. As a result, mineralisation at RIB North is now confirmed on two separate horizons.
Drillhole RIBN-DD-008 tested that western-limb target and intersected 14.0 metres of total composite uranium mineralisation across nine zones from 398.0 metres to 646.0 metres.
Two high-grade zones appeared in RIBN-DD-008. The first ran from 427.0 metres to 429.5 metres and averaged 2,529 CPS, including 20 centimetres with a maximum reading of 11,798 CPS. The second ran from 436.0 metres to 438.5 metres and averaged 2,711 CPS, including 10 centimetres that read 11,725 CPS.
Meanwhile, drillhole RIBN-DD-009 remains in progress. So far it has intersected 17.5 metres of total composite uranium mineralisation across six zones from 298.5 metres to 516.5 metres.
RIBN-DD-009 sits 100 metres up-dip from RIBN-DD-003. Its widest zone measured 14.5 metres of continuous mineralisation, averaged 1,507 CPS and included 20 centimetres of high-grade mineralisation with a maximum reading of 13,807 CPS.
Most follow-up drilling after RIBN-DD-001 has focused on the eastern limb of the Mineralized RIB Corridor. Since that work began, ATHA has outlined continuity over 300 metres on the primary horizon.
By contrast, the secondary horizon found in RIBN-DD-008 sits on the western limb of the same corridor. Mineralisation on both the primary and secondary horizons is basement hosted.
Cliff Revering, ATHA’s vice president of exploration, said the early step-out holes support continuity of uranium mineralisation across the distances drilled so far and support the company’s exploration model.
On 1 May 2026, the 2026 Angilak Exploration programme began diamond drilling. The campaign is scheduled to run until the end of September 2026 and targets about 20,000 metres with three diamond drill rigs.
After the drilling campaign, an MMT aerial geophysics survey is due to start in early July 2026. ATHA also expects 3D inversion modelling in the fourth quarter of 2026.
