• Seven new hydrogeological monitoring wells installed for pump testing
• Pump testing to assess groundwater flow and hydrogeological conditions
• Program designed to support permitting and Q3 2026 Scoping Study
• Builds on successful 2025 hydrogeological testing results

American Uranium Limited (AMU) is advancing its Lo Herma ISR uranium project in Wyoming's Powder River Basin with the installation of seven new hydrogeological monitoring wells. These wells are part of a planned large-scale pump testing program at Mine Unit 1, aimed at assessing groundwater flow through the mineralized sands, which is crucial for ISR development. The testing will also monitor overlying and underlying units to support future permitting work. The pump testing is expected to be completed in August or September 2026, with results reported during late Q3 2026. This program builds on the successful 2025 hydrogeological testing, which demonstrated sustained flows and minimal aquifer drawdown. The pump testing is a key step in de-risking the hydrogeological aspects of the project and will provide essential data for the planned Q3 2026 Scoping Study.

The pump testing program is expected to provide key hydrogeological data for Mine Unit 1, supporting future permitting and development planning.