Deep Yellow Limited has intersected thick, high-grade zones of uranium mineralisation at its newly identified Tinkas prospect in Namibia’s Erongo Region, with drilling returning intercepts of up to 11 metres at 777 ppm eU₃O₈ from surface and 2 metres at 1,273 ppm eU₃O₈ from 11 metres depth.
The discovery, located within Exclusive Prospecting Licence 3496 and immediately adjacent to the company’s flagship Tumas Project on Mining Licence 237, marks a significant extension of the mineralised palaeochannel system that underpins Deep Yellow’s expanding Namibian uranium portfolio.
The company completed 105 reverse-circulation drill holes totalling 1,137 metres to test an airborne radiometric anomaly coinciding with shallow palaeochannels—ancient riverbeds known for hosting calcrete-type uranium deposits.
Of the holes drilled, 28 returned intersections above 100 ppm eU₃O₈, confirming near-surface mineralisation averaging 2.9 metres in thickness and 260 ppm eU₃O₈ across the zone.
Among the standout intersections were TUBR1179 with 11 metres at 777 ppm eU₃O₈ from 1 metre, TUBR1180 with 2 metres at 1,273 ppm eU₃O₈ from 11 metres, TUBR1242 with 9 metres at 149 ppm eU₃O₈ from 2 metres, and TUBR1225 with 6 metres at 199 ppm eU₃O₈ from 3 metres and 3 metres at 311 ppm eU₃O₈ from 14 metres.
Drilling confirmed a shallow palaeochannel that widens westward to depths of up to 19 metres, with calcretised sediments demonstrating clear uranium fertility.
The results, Deep Yellow said, highlight the potential of the Tinkas area to add to Tumas’ growing resource inventory.
“This initial drill programme delivered very encouraging results, revealing thick mineralised sediments from surface that can contribute incremental resources to the Tumas project,” said Acting Chief Executive Officer and Chief Financial Officer Craig Barnes.
The Tinkas campaign ran from 23 September to 14 October 2025, employing 200-metre line spacing and 100-metre drill spacing.
Four additional wide-spaced regional lines were also tested to the south to investigate an under-explored tributary of the main Tumas palaeochannel.
Deep Yellow, listed on the ASX, NSX, and OTCQX, is advancing a dual-pillar strategy to produce over 10 million pounds of uranium annually from its Tumas (Namibia) and Mulga Rock (Australia) projects.
The company’s exploration success at Tinkas reinforces its position as one of the most active uranium developers in Namibia, as global interest in nuclear energy strengthens the case for a reliable, low-carbon baseload supply.
