Cauldron Energy Sets 9.4-42.7Mlb Uranium Target Near Manyingee Deposit

Significant Uranium Potential Uncovered on New Tenements

Cauldron Energy (ASX:CXU) has unveiled an initial Exploration Target ranging from 9.4 million to 42.7 million pounds of uranium oxide on four recently acquired tenements that envelope Paladin Resources’ Manyingee Uranium Deposit. This estimate leverages extensive historical data and analogues from nearby deposits, marking a substantial addition to Cauldron’s Yanrey Uranium Project inventory.

These newly acquired tenements, purchased from Wyloo Metals, strategically surround Paladin’s Manyingee deposit, which hosts 25.9 million pounds of uranium oxide, and sit adjacent to Cauldron’s own Manyingee North deposit, itself a recent discovery with a maiden Mineral Resource Estimate of 9.8 million pounds uranium oxide announced earlier this year. The company highlights that mineralisation at Manyingee North likely extends northwards for several kilometres and remains open, setting the stage for a focused 2026 drilling campaign.

Yanrey Project Builds on Robust Resource Base

Cauldron’s Yanrey Uranium Project, stretching over 1,493 square kilometres along the Early Cretaceous coastline in Western Australia, already boasts over 55 million pounds of uranium oxide across three deposits: Bennet Well (30.9 million pounds), Manyingee South (14.9 million pounds), and Manyingee North (9.8 million pounds). The new Exploration Target on the recently acquired tenements adds a potentially sizeable extension to this portfolio.

The company is preparing a revised project-wide Exploration Target update, expected before 30 June 2026, which will incorporate insights from the last two drill campaigns and recent geophysical surveys. This update aims to refine the scale and grade expectations across the entire Yanrey holdings, further cementing the project’s uranium prospectivity. Cauldron’s CEO Jonathan Fisher emphasised the region’s fertility for uranium mineralisation and the strong geological confidence underpinning the Exploration Target, noting the project’s amenability to in situ recovery (ISR) extraction methods.

Geological Setting and Exploration Strategy

The Yanrey Uranium Province hosts a complex network of palaeochannels, with over 20 identified within Cauldron’s tenements. These channels, sourced from uranium-bearing granitoid uplands, create a fertile environment for uranium mineralisation. The Manyingee deposits lie within a >20 km by 15 km embayment of the Early Cretaceous palaeocoastline, featuring multiple stacked roll-fronts and extensive mineralised zones.

Cauldron uses a combination of airborne electromagnetic (AEM) and passive seismic surveys to delineate buried palaeochannels, followed by targeted aircore drilling. The company’s recent acquisitions, especially tenement E08/2896, are considered highly prospective as they bridge mineralisation between Paladin’s Manyingee deposit and Cauldron’s Manyingee North resource, with historical and recent drilling indicating mineralisation continuity.

Exploration Target Methodology and Uncertainties

The Exploration Target was derived by subdividing the four tenements into eight target zones, each assigned grades and tonnages based on analogous palaeoenvironmental settings and existing Mineral Resource Estimates from Cauldron and previous operators. An arbitrary ±50% variance was applied to account for uncertainties related to limited drilling in some zones and variability in grade and thickness.

The resulting Exploration Target ranges from 14.2 million to 42.6 million tonnes at grades between 301 and 455 ppm eU3O8, equating to 9.4 to 42.7 million pounds of uranium oxide. Cauldron has deliberately adopted conservative grading by using Manyingee East’s lower grade analogues rather than the higher grades reported at Paladin’s Manyingee deposit, reflecting caution given the conceptual nature of the target.

Upcoming Drilling and Regulatory Outlook

The Manyingee North deposit, which remains open along strike, will be a high priority for Cauldron’s 2026 drill program, aiming to extend known mineralisation and convert Exploration Targets into Mineral Resources. This drilling follows Cauldron’s recent expansion of Yanrey uranium holdings, which added critical tenements linking key deposits.

Cauldron is also advancing environmental and technical studies to position Yanrey for development pending the lifting of Western Australia’s uranium mining ban. The project’s suitability for ISR mining offers a low-impact extraction pathway, aligning with modern environmental expectations.

While the Exploration Target is conceptual and not yet a Mineral Resource, it highlights Yanrey’s potential to become a major uranium source in Australia. The coming months will be pivotal as Cauldron publishes its updated project-wide Exploration Target and progresses drilling, with regulatory developments in WA remaining a key variable.