Cauldron Energy (ASX:CXU) has quadrupled the strike length of uranium mineralisation at its Manyingee North deposit within the Yanrey Uranium Project in Western Australia to about 4km.
Step-out drilling has extended mineralisation about 2,500m north and 550m south of the existing resource area. The company says mineralisation remains open in all directions and has been confirmed across the palaeochannel’s full 1,200m drilled width.
Results have been received for a further 13 drill holes from the 2026 campaign, with highlights including 2.58m @ 637.6 parts per million (ppm) equivalent uranium oxide (eU3O8) from 87.63m in hole 26YRAC023.
Hole 26YRAC024 returned 2.66m @ 282.5ppm eU3O8 from 114.07m, while other results include 4.42m @ 244.4ppm eU3O8 from 98.99m and 1.94m @ 231.2ppm eU3O8 from 92.59m.
Cauldron says drilling has also identified a second higher-grade zone within the palaeochannel. All 44 holes drilled on tenement E08/1489 during the 2025 and 2026 programs have intersected mineralisation above the company’s cut-off grade of 150ppm eU3O8 over a minimum thickness of 0.2m.
The existing inferred mineral resource estimate for Manyingee North stands at 14.9 million tonnes @ 297ppm eU3O8 for 9.8 million pounds (4,445 tonnes) of contained uranium oxide, using a 100ppm cut-off. It was based on a drilling envelope covering about 670m of strike.
CEO Jonathan Fisher says all 25 holes drilled at Manyingee North during the 2026 campaign have returned mineralisation.
“We could not have wished for better. The drilling this 2026 campaign clearly evidences [is] that the Manyingee North deposit will continue to grow significantly with further drilling,” Fisher says.
Cauldron says it plans further step-out drilling at Manyingee North before testing the Manyingee South deposit, Cosgrove prospect, and Bennet Well West target.
The company has defined 55.6 million pounds (25,220 tonnes) of uranium oxide across three mineral resources at Yanrey.
Write to France Pinzon at Mining.com.au
Images: Cauldron Energy
