American Uranium's Lo Herma Resource Reaches 9.96Mlbs as Indicated Resources Grow 72% Prior to Publication of Planned Scoping Study

Rhea-AI Summary

American Uranium (OTCQB: AMUIF) reported an updated Mineral Resource Estimate for its flagship Lo Herma ISR uranium project in Wyoming, increasing total resources by 16% to 9.96Mlbs U3O8. Indicated Resources rose 72% to 4.7Mlbs U3O8, ahead of a planned Scoping Study.

The proposed Scoping Study resource base was expanded 23% to 7.38Mlbs U3O8, with Indicated material within the study footprint lifted to 54%, from 32%. The company completed its 120-hole 2025–26 drilling program and now holds 11.62Mlb U3O8 in total resources in Wyoming, with the Lo Herma Scoping Study targeted for early Q4 2026.

Positive

• Indicated Resources +72% to 4.7Mlbs U3O8 at Lo Herma
• Total Lo Herma resources +16% to 9.96Mlbs U3O8
• Scoping Study base +23% to 7.38Mlbs U3O8 U3O8
• Indicated proportion in study footprint increased to 54% from 32%
• 120-hole 2025–26 drilling program completed and incorporated into resource
• Total company resources in Wyoming now 11.62Mlb U3O8

Negative

• None.

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CASPER, Wyo., Aug. 4, 2026 /PRNewswire/ -- American Uranium Limited (ASX: AMU, OTCQB: AMUIF) announced an updated Lo Herma Uranium resource that reaches 9.96Mlbs as Indicated Resources grow 72% prior to the publication of a planned scoping study. Specific details can be found here: https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-03117542-6A1337145&v=undefined.

Highlights:

• Delivered a 72% increase in Indicated Resources to 4.7Mlbs U₃O₈, significantly enhancing resource confidence and development readiness.
• Expanded the proposed Scoping Study resource base by 23% to 7.38Mlbs U₃O₈, strengthening the scale of the initial development opportunity.
• Lifted confidence within the proposed Scoping Study footprint to 54% Indicated, up from 32%, providing a stronger foundation for mine planning and project evaluation.
• Increased total Lo Herma Resources by 16% to 9.96Mlbs U₃O_8, reinforcing Lo Herma's position as a significant emerging U.S. ISR uranium development project.
• Completed the 120-hole 2025-26 drilling program, with all results now incorporated into the updated Mineral Resource Estimate.
• Advanced Lo Herma toward the Scoping Study targeted for early Q4 2026, supported by a larger, higher-confidence resource base and planned hydrogeological pump testing.
• AMU's total mineral resources now stand at 11.62Mlb U₃O₈ within the state of Uranium.

"The updated LoHerma Mineral Resource Estimate marks an important development milestone for us, delivering both a substantial increase in confidence and resource growth ahead of our planned Scoping Study," said Bruce Lane, CEO of American Uranium.

The LoHerma ISR uranium project is the company's flagship asset, located in Wyoming's Powder River Basin. On a contained-resource and development readiness basis, the Project is increasingly comparable to ISR satellite projects in the area such as Ur-Energy's Shirley Basin and Uranium Energy Corp's Luderman, which have been advanced within hub-and-spoke ISR frameworks. The company also holds additionally highly prospective ISR assets in Wyoming's Great Divide Basin and brownfields conventional uranium/vanadium assets in Utah's Henry Mountains.

View original content:https://www.prnewswire.com/news-releases/american-uraniums-lo-herma-resource-reaches-9-96mlbs-as-indicated-resources-grow-72-prior-to-publication-of-planned-scoping-study-302842553.html

SOURCE American Uranium Ltd.

FAQ

What resource increase did American Uranium (AMUIF) report at Lo Herma on August 4, 2026?

American Uranium reported a 16% increase in total Lo Herma resources to 9.96Mlbs U3O8. According to American Uranium, Indicated Resources at Lo Herma also rose 72% to 4.7Mlbs U3O8, reflecting higher confidence drilling results incorporated into the updated Mineral Resource Estimate.

How much did Indicated Resources grow at American Uranium's Lo Herma project (AMUIF)?

Indicated Resources at Lo Herma increased 72% to 4.7Mlbs U3O8. According to American Uranium, this uplift significantly enhances resource confidence and development readiness, particularly within the planned Scoping Study footprint, where 54% of resources are now classified as Indicated, up from 32% previously.

What is the planned timing of the Lo Herma Scoping Study for American Uranium (AMUIF)?

American Uranium is targeting the Lo Herma Scoping Study for early Q4 2026. According to American Uranium, this study will be supported by the updated Mineral Resource Estimate, expanded Scoping Study resource base, and completed 120-hole 2025–26 drilling program at the ISR uranium project.

What are American Uranium's total uranium resources in Wyoming after the Lo Herma update?

American Uranium now reports total mineral resources of 11.62Mlb U3O8 in Wyoming. According to American Uranium, this figure includes the updated Lo Herma resources of 9.96Mlbs U3O8, reinforcing Lo Herma as a significant emerging U.S. ISR uranium development project.

How did the Scoping Study resource base change at Lo Herma for American Uranium (AMUIF)?

The proposed Scoping Study resource base at Lo Herma increased 23% to 7.38Mlbs U3O8. According to American Uranium, the proportion of Indicated resources within the Scoping Study footprint also rose to 54%, providing a stronger foundation for mine planning and project evaluation activities.

What drilling work supported American Uranium's updated Lo Herma resource estimate?

The updated Lo Herma resource incorporates results from a 120-hole 2025–26 drilling program. According to American Uranium, all drilling data have now been included in the Mineral Resource Estimate, contributing to both the 16% total resource increase and the 72% growth in Indicated Resources.