Arkle Resources (AIM:ARK), the London-listed energy metals explorer focused on uranium, said trench assays have defined an extensive uranium system at its primary ULG target in Namibia.
The mineralisation spans approximately 1.5 kilometres of strike by up to 0.6 kilometres at the Erongo uranium project, expanding on the 1km by 700m footprint reported in June, and remains open in both directions.
Initial reverse circulation drilling, completed at the end of July, confirmed the stacked leucogranite sheets continue to at least 188 metres below surface, with assay results due during September.
The deposit style matches the architecture hosting Bannerman Energy's Etango project and Asarian Energy's Norasa project, both in the central Erongo region, though Arkle stressed the comparison relates to geological setting only and no mineral resource has been estimated on its licences.
Of 271 samples assayed, 39 returned values above 100 parts per million (ppm) U₃O₈, with peak grades of 800ppm on surface and 358ppm in trenches.
Every sample above 100ppm sat on leucogranite or a leucogranite contact, indicating lithological control on the mineralisation.
Elevated rare earth elements also appeared across parts of the sample population, though the company is not currently targeting REEs and has undertaken no assessment of their economic significance.
The drill programme was expanded to 2,712 metres across 87 holes, more than 80% above the original plan, and 974 samples have been submitted to Actlabs for assay.
"The trench results we are reporting today are the first of those to come back, and they are encouraging," said chief executive Rory Harding.
Assay results from both the ULG and paleochannel drilling are expected during September, alongside drill sections integrating the trenching and drilling data.
News Intelligence what this means for the company
Arkle's trenching at its ULG target in Namibia has expanded the known uranium footprint to 1.5 km × 0.6 km, with 39 of 271 samples exceeding 100 ppm U₃O₈ and peak grades reaching 800 ppm on surface. Reverse circulation drilling to 188 metres confirms the mineralisation sits in leucogranite architecture identical to that hosting Bannerman Energy's Etango and Asarian Energy's Norasa deposits nearby—a geological validation that the company is exploring the right rock type in the right district, though no resource estimate yet exists.
- Bannerman Energy and Asarian Energy operate in the same central Erongo leucogranite system; Arkle's confirmation of the same host geology may influence their own exploration strategies or valuations in the region.
Arkle raised £1.7 million in July to fund Namibian exploration, and this trench-and-drill campaign is the first material results from that capital deployment. The 1.5 km footprint and stacked leucogranite sheets to 188 m depth suggest a system of scale, but assay results from 974 submitted samples (due in September) will determine whether grades and thickness support economic interest; geological fit alone does not reduce exploration risk.
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