GTI Energy Advances Lo Herma Uranium Project with Strong ISR Test Results

Positive Metallurgical Results Bolster Lo Herma Project

GTI Energy Ltd has delivered encouraging progress at its flagship Lo Herma In-Situ Recovery (ISR) Uranium Project located in Wyoming’s Southern Powder River Basin. The company announced positive uranium leach test results during the March 2025 quarter, demonstrating that the Lo Herma mineralisation is amenable to alkaline ISR processes. Test recoveries of uranium averaged around 75%, aligning closely with performance metrics from nearby ISR operations in the same basin.

This metallurgical confirmation is a critical milestone, as it validates the feasibility of extracting uranium via a low-impact, cost-effective ISR method. The leach tests employed reagent concentrations consistent with established Wyoming producers, reinforcing the comparability of Lo Herma’s orebody to proven ISR deposits.

Resource Upgrade and Hydrogeological Validation

Alongside metallurgical success, GTI updated its Mineral Resource Estimate (MRE) for Lo Herma to a combined Indicated and Inferred resource of 8.57 million pounds of uranium (eU3O8) at an average grade of 630 ppm. This upgrade reflects ongoing drilling campaigns and extensive data compilation, including 954 drill holes to date.

Complementing the resource update, the company completed groundwater monitoring well drilling and laboratory hydraulic conductivity testing. These studies confirmed sufficient submergence of mineralisation within the local aquifer and permeability characteristics suitable for ISR mining. Such hydrogeological validation is essential to ensure efficient fluid flow and uranium recovery during future operations.

Scoping Study on Track for Q2 2025 Completion

GTI’s Scoping Study for Lo Herma is progressing as planned, incorporating the latest metallurgical, hydrogeological, and drilling results. Fieldwork and testing have been completed, with the study expected to be delivered in the first half of 2025. This study will provide a preliminary economic assessment and guide subsequent development decisions.

GTI’s management has also reported ongoing exploration expenditure of $372,000 for the quarter and a cash balance of $913,000 at period end. Additionally, the company retains standby equity capital of $255,000 under an At-the-Market (ATM) financing facility, providing flexibility to fund near-term activities.

Broader Project Portfolio and Corporate Updates

While Lo Herma remains the company’s primary focus, GTI holds other uranium and vanadium projects in Wyoming’s Great Basin and Utah’s Henry Mountains, offering further exploration upside. The company recently held its Annual General Meeting on 8 May 2025, maintaining shareholder engagement as it advances its development pipeline.

GTI’s technical disclosures were reviewed and approved by competent persons with extensive experience in uranium exploration and ISR mining, ensuring the reliability of the reported data. The company continues to emphasize rigorous compliance with JORC reporting standards and transparent market communication.