Rare Earth Zones Strengthen American Rare Earths Momentum Amid asx 200 Landscape (ASX:ARR), (OTCQB:ARRNF)

Highlights:

• Channel sampling at Cowboy State Mine identifies enriched rare earth concentrations.

• Red Mountain Pluton reports consistent magnet and heavy rare earth distribution.

• Project development progresses with permit application and updated resource modeling.

Operating within the rare earths segment of the resources industry, American Rare Earths Ltd (ASX:ARR), (OTCQB:ARRNF) continues development activities at its Halleck Creek Rare Earths Project, located in Wyoming, United States. While the broader asx 200 index tracks major listed entities, American Rare Earths is progressing outside the benchmark with a focus on critical mineral supply initiatives, particularly relevant following changes in global export dynamics.

Channel Sampling Campaign Enhances Project Understanding

American Rare Earths Ltd, through its U.S.-based subsidiary, recently conducted a channel sampling initiative across the Red Mountain area within the Cowboy State Mine. The fieldwork was undertaken in collaboration with a technical services firm, involving systematic sample collection aimed at evaluating rare earth mineralisation hosted in allanite formations.

The samples have indicated strong distributions of total rare earth oxides. Notably, the Red Mountain Pluton showed consistent concentrations across numerous samples, with certain locations demonstrating significantly enriched zones. These zones are expected to be incorporated into further resource modeling efforts.

Magnet and Heavy Rare Earth Elements Identified Across Site

The sampling exercise reinforced the presence of magnet rare earth oxides such as neodymium and praseodymium, as well as heavy rare earths including dysprosium and terbium. These materials are widely utilized in high-temperature magnets and remain in demand due to their specialised applications.

The average compositions indicate meaningful presence of both magnet and heavy rare earth elements across the project’s mineralised zones. Sampling also revealed clusters with notably higher grades, enhancing confidence in the uniformity and scale of mineralisation.

Geological Modeling and Pre-Feasibility Study Advancing

American Rare Earths plans to integrate the channel sample data into a revised geological model, supporting an updated mineral resource estimate for the Cowboy State Mine. These updates will also guide the design of mining activities as part of the ongoing pre-feasibility study, which is expected to shape the long-term planning of the Halleck Creek Project.

The pre-feasibility study includes inputs from previous modeling efforts and aims to inform engineering work, operational scale, and infrastructure layout. The structured approach to resource definition is designed to ensure thorough planning aligned with regulatory and environmental frameworks.

Permitting Milestones and Exploration Expansion

A permit application has been submitted to the Wyoming Department of Environmental Quality, marking a step toward facilitating further development drilling. The Cowboy State Mine’s location on state-managed lands enables a streamlined permitting process, distinguishing it from federal land-based projects.

This jurisdictional advantage provides American Rare Earths with an avenue to advance exploration and technical development activities without the need for broader federal intervention. The submission follows multiple fieldwork phases and sets the groundwork for upcoming drilling and mine planning operations.

Project Scope and National Strategic Relevance

The Halleck Creek Rare Earths Project continues to attract attention due to its scale and alignment with broader material supply objectives. With rare earths being designated as critical materials for energy and defence applications, developments at Halleck Creek carry implications beyond the mining sector.

As geopolitical developments influence global rare earth supply chains, domestic sourcing initiatives such as this contribute to diversified and secure supply routes. American Rare Earths' progression at Halleck Creek reflects sustained momentum within the rare earths segment.