Cauldron Energy (ASX:CXU) has reported uranium results from the first 14 holes of its 2026 drilling program at the Yanrey Uranium Project in Western Australia.
Drilling has extended mineralisation at the Manyingee North deposit by approximately 2,500m to the north and 550m to the south, increasing its strike length to around 4km. Mineralisation remains open in both directions.
All eight holes targeting the northern extension returned mineralisation above the reporting cut-off grade.
Results include 1.74m @ 644.9 parts per million (ppm) equivalent uranium oxide (eU₃O₈) from 91.58m in 26YRAC014 and 2.30m @ 258.3ppm eU₃O₈ from 91.62m in 26YRAC013.
Manyingee North hosts an inferred mineral resource estimate of 14.9 million tonnes containing 9.8 million pounds of eU₃O₈ @ 297ppm eU₃O₈, using a 100ppm cut-off grade.
The estimate covers a drilling envelope measuring approximately 1,400m wide and 670m along strike within the Manyingee North palaeochannel.
Cauldron says a ‘high-grade’ zone between 300m and 400m wide occurs in the centre of the palaeochannel. Drilling has extended this zone a further 800m north.
Four holes drilled on the recently acquired E08/2896 tenement extended mineralisation 550m south of the existing resource boundary. Initial drilling was restricted to previously disturbed areas due to heritage-clearance requirements.
The company interprets that ‘high-grade’ mineralisation may occur towards the centre of the channel, which it plans to target following additional heritage clearance later this year.
Two holes at the Cosgrove prospect also intersected mineralisation, extending its known width to 1.2km. Mineralisation has now been intersected in three of five exploration holes completed at Cosgrove.
CEO Jonathan Fisher says drilling has extended Manyingee North well beyond the 670m strike length covered by the 2025 drilling envelope.
“We have focused on the strike extension north and south to date, and less holes as yet across the channel but where we have drilled a fence of holes we have again shown that the mineralisation is broad and consistent across the channel with a high-grade zone at its centre,” Fisher says.
The 2026 campaign comprises approximately 5,000m of aircore drilling at Manyingee North, 4,000m at Manyingee South, and 1,000m at Cosgrove.
Write to France Pinzon at Mining.com.au
Images: Cauldron Energy



