Alligator Energy (ASX:AGE) reports initial ISR recovery results at Samphire Field Recovery Trial

Alligator Energy has reported an operational update from the first well pattern at its Samphire Uranium Project Field Recovery Trial, following the commencement of uranium extraction announced on 23 March 2026.

The results to date reflect performance consistent with the company’s models and support the assumptions outlined in the December 2023 Scoping Study.

Highlights

• Wellfield producing uranium-rich solution at expected concentrations
• Uranium leaching recoveries and reagent consumption in line with model
• Flow rates, permeability and porosity consistent with design assumptions
• Approximately 39 pore volumes processed out of planned 70
• Uranium recovery exceeded ~55% at current stage
• Pregnant lixiviant grades peaked at >200 mg/L U3O8 and remain >100 mg/L U3O8

The Field Recovery Trial has progressed to approximately 39 pore volumes of the planned 70 pore volumes, with one pore volume representing the amount of solution required to fill the natural void spaces within the contained orebody in the well pattern once, indicating how many times the mineralised zone has been flushed during the recovery process.

Pregnant lixiviant grades produced from the wellfield peaked at over 200 mg/L U3O8 and currently remain above 100 mg/L U3O8 based on assays at the onsite laboratory.

Uranium recovery has exceeded approximately 55% from the 39 pore volumes processed to date, indicating consistent leaching performance and ongoing mobilisation of uranium within the wellfield.

Reagent consumption required to achieve these recoveries remains in line with expectations, reflecting efficient leaching conditions and favourable operating parameters.

The company noted that these outcomes provide further confidence in the permeability and connectivity of the wellfield, as well as the project’s ability to achieve targeted uranium tenor and recovery assumptions as outlined in the Scoping Study.

Results obtained from the onsite laboratory are being validated by duplicate assay at a NATA certified external laboratory, with more detailed results to be released in due course.

Alligator Energy CEO and Managing Director Andrea Marsland-Smith said,

“We are delighted with these results, which represents a strong validation of the wellfield design and operating assumptions outlined in our Scoping Study. Achieving greater than 55% recovery at this stage of the trial, with reagent consumption in line with expectations, demonstrates the effectiveness of the ISR process under field conditions. Importantly, we are seeing consistent solution flow and wellfield performance, which gives us confidence as we progress towards the planned 70 pore volumes and continue to optimise recovery. We expect to report final results from this well pattern at the end of April.”

The trial is continuing toward the planned 70 pore volumes, with final results from the first well pattern expected at the end of April, and the current data set reflects performance consistent with the company’s models and supports the assumptions outlined in the December 2023 Scoping Study, with further validated assay results to follow.