Pioneer Lithium says the Warmbad Uranium Project’s potential resource ranges between 22.22 million tonnes at 100 parts per million (ppm) U₃O₈ and 32.11 million tonnes at 120 ppm U₃O₈.
The estimate is based on uranium mineralisation hosted in alaskite granite across four defined zones: Area 1, Area 3 Extension, Area 3, and Area 5, located within Namibia’s southern uranium corridor.
The target represents a conservative interpretation of historical drilling data and forms the company’s first quantifiable model of the Warmbad Project’s mineralisation potential.
Pioneer Lithium has confirmed that this target is conceptual, and further drilling will be required before a JORC-compliant mineral resource can be defined.
The company is preparing to follow up with modern geophysical surveys and a staged drilling programme designed to expand the model and test several unexamined zones of geological interest.
Conservative baseline with scope for expansion
Chief Executive Officer Michael Beven said the initial target gives the company a clear starting point for future development.
He noted that all four zones remain open in multiple directions, and that numerous granite and alaskite bodies throughout the licence area have yet to be tested due to the limitations of past geophysical data.
According to Beven, the project’s scale could increase significantly following the completion of a high-resolution drone-based radiometric and magnetic survey. The historic regional survey from 2007, completed by former licence holder Xemplar Energy, was too coarse to support precise targeting and omitted several areas now being re-evaluated by Pioneer.
Historic drilling data from Xemplar Energy
The exploration target was developed using 31,685 metres of drilling carried out by Xemplar Energy between 2007 and 2009.
This included 161 reverse circulation holes and 11 diamond drill holes. However, the diamond core was never assayed or structurally analysed, limiting its contribution to the current model.
Geological modelling was conducted by Steve Hyland of Hyland Geological and Mining Consultants, using 3D wireframing and block modelling techniques.
Uranium grades were interpolated using ordinary kriging applied to handheld XRF data.
A lower cut-off grade of 80 ppm U₃O₈ was used, with grades across the modelled zones averaging between 100 and 120 ppm.
All mineralised envelopes were constrained to the limits of drill data and depth coverage.
No assumptions were made beyond the extent of drilling, and zones containing untested granite-hosted intrusions were excluded from the model, contributing to its conservative character.
Mineralised zones remain open
Area 1 consists of two zones of shallow-dipping mineralised alaskite sheets separated by approximately 500 metres.
Both zones remain open in all directions.
Area 3 Extension comprises flat-lying uranium-bearing horizons that are open to the north, northeast, east and southeast.
Area 3 features several thick, east-dipping mineralised bands that continue to the full depth of drilling, approximately 200 metres.
The zone remains open at depth and along strike.
Area 5 exhibits a more complex structure, with the western flank dipping to the north and the eastern flank dipping to the south. Both sides remain open at depth, offering further scope for expansion.
Next exploration phase
The company plans to carry out a high-resolution drone-based magnetic and radiometric survey to replace the outdated 2007 regional dataset.
This new survey is expected to help identify previously unrecognised mineralised intrusions and better define the extent of known zones.
During geological logging, magnetite was observed in association with uranium-bearing alaskite.
This relationship has not been previously explored, but it may aid in identifying high-grade zones through the use of magnetic anomalies.
Land access processes
Pioneer is in the process of finalising land access agreements with landowners and obtaining the necessary permits from the mine ministry.
Access to the site has been delayed as the ministry awaits the reappointment of committee members. Despite this, Pioneer reports strong support for the project from regional authorities in Warmbad and Karasburg.
Additional uranium styles
In addition to alaskite-hosted mineralisation, Pioneer intends to investigate the potential for paleochannel-style uranium deposits.
These sedimentary-hosted systems are standard in Namibia and could significantly expand the project’s geological scope.
Favourable geology in a proven uranium region
The Warmbad Uranium Project is situated within the Namaqua Metamorphic Complex, a uranium-bearing province that also hosts primary operations, including the Rossing mine.
The region is known for its stable mining laws, established infrastructure and strong institutional support for uranium development.
With a conservative target now defined and modern exploration initiatives underway, Pioneer Lithium is positioning the Warmbad Uranium Project as a potentially significant contributor to Namibia’s growing nuclear fuel supply chain.
