Wedoany.com Report-Dec.19, American Uranium (AMU) has concluded its 2025 resource expansion drilling program at the Lo Herma in-situ recovery (ISR) uranium project, located in Wyoming's Powder River Basin, United States.

The updated MRE and additional drilling at Lo Herma are scheduled for 2026.

The campaign consisted of 50 mud rotary drill holes totaling approximately 53,460 feet (16,300 meters). The primary objectives were to broaden the known resource area and support progress toward establishing an ISR mining operation.

Efforts focused on delineating mineralization extensions along trends situated north of the designated mine units 1 and 2.

Results confirmed substantial mineralized zones, with intercepts reaching up to 3 kilometers beyond previously identified drill holes.

AMU CEO and executive director Bruce Lane said: "We are delighted that this resource expansion drilling has delivered strong grades with generous thicknesses in multiple stacked sands of both the Wasatch and the Fort Union formations. We remain very optimistic that the results of this expansion drilling campaign at Lo Herma can be brought into additional resource pounds.

"This year's drilling has successfully demonstrated that the host sandstone units contain reliable continuity of mineralisation across extended trends for 3km (10,000ft) to the north of the current proposed mine units."

The program yielded the project's strongest intercept to date, prompting plans for an updated mineral resource estimate and further drilling in 2026.

Notable results included an intercept of 4.1 meters grading 0.078% (780 parts per million) equivalent uranium oxide, containing a 1-meter subsection at 0.143% equivalent uranium oxide (1,430 ppm) in drill hole LH-25-048.

The highest grade-thickness product recorded was 1.41 over 7.6 meters, distributed across two stacked sand horizons within a single hole.

In parallel, AMU has secured 12 additional mineral claims encompassing 96 hectares, extending the project area northward from mine unit 2.

Lane added: "With resource expansion drilling now completed for 2025, we look forward to the full geological evaluation of these results in early 2026, ahead of the next phase of drilling.

"Petrotek's hydrogeological testing report is expected shortly which, along with the latest drilling data, will help guide the next steps of project development. AMU continues to both grow and de-risk the project as we progress toward an update of the Lo Herma Scoping Study in 2026."

These outcomes reinforce the potential for resource growth at Lo Herma, supporting ongoing technical assessments and future development planning for the ISR uranium project.