Deep Yellow Limited (ASX:DYL) announced progress on its exploration and drilling activities across several key projects, including Tumas in Namibia and the Alligator River Project in Australia, in an update released on January 9, 2026. The company completed significant drilling programs during the December 2025 quarter, confirming the presence of mineralisation and identifying new opportunities for future exploration.
Exploration Activities in Namibia
In Namibia, Deep Yellow initiated reverse circulation (RC) drilling on EPL 3496, focusing on a previously untested 7-kilometer section of the Tumas palaeochannel. This program, conducted from October 15 to November 13, 2025, included 39 holes, totaling 1,801 meters. The drilling confirmed the palaeochannel’s presence and identified favourable sedimentary fill. However, only isolated occurrences of surficial uranium mineralisation exceeding 100 ppm eU3O8 were found, including:
– TUS125: 2 m at 188 ppm eU3O8 from 33 m
– TUS144: 2 m at 195 ppm eU3O8 from 17 m
– TUS147: 2 m at 139 ppm eU3O8 from 13 m
The company interpreted the absence of significant mineralisation as a result of the palaeochannel’s morphology and a lack of suitable physical traps within the underlying bedrock. As a result, Deep Yellow plans to shift its focus in 2026 to explore underexplored areas of the basement that may be prospective for alaskite-hosted uranium mineralisation.
Advancements at the Alligator River Project
At the Alligator River Project, located approximately 380 kilometers by road east-northeast of Darwin in the Northern Territory, Australia, Deep Yellow completed its 2025 field and drilling program. The extensive campaign included geological mapping, soil and rock chip sampling at several prospects, including Such Wow, TP14, and Q14, alongside passive and reflection seismic surveys at the Condor prospect.
A significant part of this initiative involved 10 diamond core holes, totaling 2,754 meters, and 9 reverse circulation holes, totaling 1,906 meters, completed between August 27 and November 3, 2025. Notably, drilling at the Q14 prospect revealed a major fault zone, which exhibited brecciation and features similar to those found in the nearby Nabarlek deposit.
Drill hole ARRC0025 discovered a 22-meter-wide zone with elevated uranium mineralisation, including 8 meters at 458 ppm eU3O8 from 84 meters. This hole was twinned with diamond core hole ARDD0029, which reported similar findings, including 3 meters at 523 ppm eU3O8 from 77 meters. The use of advanced hyperspectral mapping techniques to create detailed mineral maps of the drill core marks a significant advancement in exploration for unconformity-related uranium deposits.
The Northern Territory government supported this year’s seismic acquisition with a contribution of A$100,000 through the Resourcing the Future program. Geological mapping and termite mound sampling have indicated several strong uranium anomalies near the Angularli deposit, further enhancing the area’s exploration potential.
Progress at the Mulga Rock Project
In Western Australia, the Mulga Rock Project also made strides with ground gravity and passive seismic surveys completed in late October 2025. These surveys included the acquisition of 2,025 new gravity stations and 213 passive seismic stations, with results anticipated to guide future exploration efforts for potential extensions of the Mulga Rock East deposits.
As Deep Yellow Limited continues to refine its exploration strategy, the company’s commitment to advancing its projects in Tier-1 uranium mining jurisdictions remains strong. With an emphasis on innovative techniques and comprehensive geological understanding, Deep Yellow is well-positioned to explore new opportunities in the uranium sector as global energy demands evolve.
