Cauldron Energy Records Major Uranium Discovery at Manyingee North as Drilling Confirms Broad High-Grade Zones

KEY HIGHLIGHTS

• First five holes at Manyingee North intersect thick high-grade uranium mineralisation
• Peak grades reach 1,956 ppm eU₃O₈ with consistent intersections across all holes
• Mineralisation remains open in all directions over a 600m-plus corridor
• CEO Jonathan Fisher and Exploration Manager John Higgins describe discovery as highly significant
• Strengthens geological case for Yanrey as one of Australia’s most prospective uranium provinces
  
   

Cauldron Energy Records Second Major Uranium Discovery in 18 Months as Manyingee North Delivers Standout Drill Results

ASX-listed Cauldron Energy Ltd (ASX: CXU) has delivered one of its strongest exploration updates to date, announcing a new high-grade uranium discovery at the Manyingee North prospect, part of the company’s 100%-owned Yanrey Uranium Project in Western Australia. The results are the first from the 2025 program and have generated renewed excitement among investors and the wider uranium sector.

The company has now received results from the first five air-core drillholes — 25YRAC034 through 25YRAC038 — and every hole has intersected uranium mineralisation across broad zones beginning from depths of approximately 90 metres and extending towards bedrock. The mineralised corridor currently spans more than 600 metres in width, with drill spacing extending a further 250 metres southward, and — crucially — remains open in every direction. 

What the drill results show

Among the standout intervals recorded:

The consistency of intersections across all five holes — especially given their position on the very first drill lines ever completed at the prospect — marks Manyingee North as one of the most promising new uranium exploration targets in Australia. 

A second major uranium discovery in 18 months

The exploration team now believes that the Manyingee North palaeochannel forms a northeast-trending extension to the broader Manyingee system, which already hosts Paladin Energy’s nearby Manyingee Deposit — 2.5 km to the southwest — and Cauldron’s Manyingee South Deposit, discovered in 2024.

Cauldron CEO Jonathan Fisher emphasised the significance of the discovery, saying:

“We are extremely pleased to report a second new discovery in the past 18 months. The palaeochannel at this target is wide and extends north for several kilometres according to our exploration team’s interpretation of the passive seismic survey so the potential for further mineralisation is strong with the mineralisation presently open in all directions. This new discovery further demonstrates the abundance of uranium in the Yanrey province and the global significance of this Project.” 

Exploration Manager John Higgins noted that the result reflects a successful application of Cauldron’s modern exploration approach:

“We are delighted to have Cauldron’s exploration methodology successfully proven with another ‘first hole’ discovery at Manyingee North. Cauldron’s second discovery in the past 18 months is due to the geological understanding and exploration methodology developed since resuming field exploration at Yanrey which utilises passive seismic and airborne EM surveying to help pinpoint areas of uranium mineralisation. This discovery serves to illustrate our belief that the Yanrey Uranium Province is vastly underexplored and underappreciated and remains one of the most prospective uranium provinces in Australia.” 

How this fits into the bigger picture

Yanrey is emerging as a long-life uranium district. Cauldron already controls:

• 30.9 Mlbs uranium-oxide at the Bennet Well deposit
• 11.1 Mlbs uranium-oxide at the Manyingee South deposit
  
   

The company’s broader landholding covers ~1,340 km², with passive seismic and airborne EM identifying 20+ palaeochannels, of which only three — Bennet Well, Manyingee South and now Manyingee North — have seen drilling to date. 

The latest discovery adds weight to a thesis that Yanrey could support multiple deposits across several kilometres of channel systems, rather than a single isolated uranium occurrence.

Market reaction and investor focus

Cauldron shares traded at $0.019, up 21.92% over the past 12 months, with a market capitalisation of $34 million and 1.79 billion shares on issue, as at 25 November 2025. Investors are likely to focus next on:

• Results from the next ~18 holes scheduled for 2025 at Manyingee North
• Expansion drilling at Manyingee South aimed at increasing defined resources
• Geological modelling of continuity between the various palaeochannels
  
   

What comes next

Further drilling is already underway, and Cauldron has indicated that both depth and strike extensions will be tested. Given the early scale of mineralisation and the geological consistency with other major deposits in the region, upcoming assay results may provide critical clarity on the resource growth potential.

While uranium price cycles remain a global market driver, today’s development strengthens Cauldron’s position as one of the most active and successful uranium explorers in Australia in the post-COVID nuclear energy revival.