Halleck Creek Ore Selected for Feedstock for the DoE METALLIC Research Consortium

Rhea-AI Summary

American Rare Earths (ADR: AMRRY) was selected to provide feedstock to the U.S. Department of Energy METALLIC consortium for domestic critical minerals and materials supply‑chain research. In December 2025 the company supplied approximately 5 tonnes of allanite ore from the Cowboy State Mine for testing across four METALLIC test centers.

METALLIC brings nine national labs together to validate and commercialize processing methods; ARR’s mineral processing flowsheets will be tested alongside novel methods, offering third‑party technical validation and potential efficiency gains.

Positive

• Selected by DOE METALLIC consortium as a feedstock provider
• Provided ~5 tonnes of allanite ore (Dec 2025) from Cowboy State Mine
• Access to testing across nine national labs and four METALLIC test centers
• Third‑party validation of ARR mineral processing flowsheets

Negative

• None.

News Market Reaction – AMRRY

+2.16%

+2.16% Session close to close

In the Mar 16 session, AMRRY gained 2.16%, reflecting a moderate positive market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement highlights American Rare Earths’ role as a key feedstock supplier to the DOE’s MET...

Analysis

This announcement highlights American Rare Earths’ role as a key feedstock supplier to the DOE’s METALLIC consortium, providing 5 tonnes of ore for testing across four centers and involving nine national labs. It builds on prior Halleck Creek milestones and U.S. policy tailwinds for domestic critical minerals. Investors may track how third‑party validation of ARR’s process flowsheets, potential efficiency gains in capturing magnetic rare earth elements, and ongoing project studies translate into future development, permitting, and commercialization steps.

Key Figures

Allanite ore supplied: 5 tonnes National labs involved: 9 labs METALLIC test centers: 4 centers

3 metrics

Allanite ore supplied 5 tonnes Ore provided from Cowboy State Mine test pit for METALLIC research in Dec 2025

National labs involved 9 labs Number of national labs in the METALLIC consortium

METALLIC test centers 4 centers Halleck Creek ore used across four METALLIC test centers

Historical Context

5 past events · Latest: Mar 02 (Positive)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
Mar 02	Leadership consolidation	Positive	-0.0%	President and CEO roles combined to streamline Halleck Creek execution and U.S. listing focus.
Feb 09	Strategic update	Positive	+4.8%	Shareholder letter outlining Halleck Creek progress and 2026 milestones and priorities.
Jan 22	Research partnership	Positive	+1.5%	University of Wyoming partnership to study byproducts and potential economic impact at Halleck Creek.
Jan 21	Policy commentary	Positive	+1.6%	Company highlighted relevance of U.S. trade proclamation supporting domestic critical mineral processing.
Dec 16	Technical milestone	Positive	-2.5%	Mixed rare earth oxide produced from Halleck Creek ore with high recovery metrics.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

News tied to Halleck Creek and U.S. strategic positioning has often seen positive or modest reactions, but strong technical milestones have previously shown both gains and selloffs, indicating mixed follow-through on good news.

Recent Company History

Over the last few months, American Rare Earths has focused on advancing the Halleck Creek rare earths project and strengthening its strategic position. On Dec 16, 2025, it reported production of mixed rare earth oxide with strong recovery metrics. Subsequent updates highlighted a favorable U.S. trade proclamation, a University of Wyoming research partnership, and a shareholder letter detailing progress and 2026 priorities. The March 2026 leadership consolidation further emphasized execution and a potential U.S. listing. Today’s DOE METALLIC feedstock role continues this theme of technical validation and domestic supply-chain alignment.

Key Terms

critical minerals and materials, mineral processing, magnetic rare earth elements, feedstock

4 terms

critical minerals and materials technical

"to establish new, domestic critical minerals and materials (CMM) supply chains."

Critical minerals and materials are natural elements and compounds—like lithium, cobalt, rare earths and certain metals—that are essential for making modern technologies such as batteries, electronics, renewable energy systems and defense equipment. They matter to investors because shortages, difficult extraction, or concentrated supply sources can raise costs, disrupt operations and create strategic risks or opportunities, much like a missing part can stop a factory line or a recipe.

mineral processing technical

"METALLIC researchers will employ mineral processing methods developed by ARR"

Mineral processing is the set of industrial steps that turn raw rock pulled from a mine into concentrated metal- or mineral-rich material ready for sale or further refining. Think of it like a kitchen process that washes, breaks up, and sorts ingredients to get the useful parts; the efficiency, cost and environmental footprint of those steps directly affect a mining project’s output, profit margins, and regulatory risks, so investors watch it closely.

magnetic rare earth elements technical

"methods for capturing and refining magnetic rare earth elements."

Magnetic rare earth elements are a small group of metallic elements used to make the strongest permanent magnets found in electric motors, wind turbines, hard drives and many high-tech products. They matter to investors because their supply is limited and geographically concentrated, so changes in availability, trade policy or price act like a sudden fuel shortage for industries that rely on them, affecting costs, profits and the outlook for related stocks.

feedstock technical

"has been selected to provide feedstock for the Department of Energy (DOE)"

Feedstock is the raw material—such as crude oil, natural gas, agricultural crops, or recycled plastics—used as the primary input to make fuels, chemicals, plastics, or other industrial products; think of it as the ingredients you put into a factory recipe. For investors, feedstock matters because its price, supply stability and quality directly shape producers’ costs, profit margins and ability to meet demand, so shifts in feedstock markets can alter company earnings and valuations.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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DENVER, March 16, 2026 (GLOBE NEWSWIRE) -- American Rare Earths (ASX: ARR | OTCQX: ARRNF | ADR: AMRRY) (“ARR” or the “Company”) has been selected to provide feedstock for the Department of Energy (DOE) Minerals to Materials Supply Chain Research Facility (METALLIC) consortium being led by the National Energy Technology Laboratory to establish new, domestic critical minerals and materials (CMM) supply chains. In December 2025, ARR provided approximately 5 tonnes of allanite ore from the Cowboy State Mine test pit for METALLIC research¹. The METALLIC consortium combines the research resources of nine national labs to validate, improve, and help commercialize technologies developed by domestic entities, amplifying the impact of the DOE and other U.S. government investments. This innovative approach fosters an ecosystem of expertise and capabilities for accelerating and de-risking CMM technology development and commercialization².

As one of the key feedstocks for the program, ore from the Cowboy State Mine (“CSM”) at the Halleck Creek Rare Earths Project provides a rare earth bearing material for use in each of the four METALLIC test centers. In collaboration with ARR, METALLIC researchers will employ mineral processing methods developed by ARR and then test novel processing methods. With METALLIC employing ARR’s processes, ARR benefits from third-party affirmation of process flowsheets. Testing of novel processes could also benefit ARR by discovering more efficient and cost-effective methods for capturing and refining magnetic rare earth elements.

Chief Executive Officer, Mark Wall, commented, “Supporting a Department of Energy program is an exciting step for the company as we focus in on advancing the largest US domestic rare earths deposit³. American Rare Earths benefits by having leading DOE scientists processing our ore as a part of the drive to domestic rare earth supply chain security within the United States.”

ARR has enjoyed previous collaborations with research professionals from Lawrence Livermore National Laboratory (LLNL), Idaho National Laboratory (INL) and Oak Ridge National Laboratory (ORNL). The METALLIC consortium provides the opportunity for everyone to work together.

ARR will continue to inform the market and our investors about this exciting collaboration as research advances.

This release was authorized by the Board of American Rare Earths.

Investors can follow the Company’s progress at www.americanree.com

 About American Rare Earths Limited:

American Rare Earths (ASX: ARR | OTCQX: ARRNF | ADR: AMRRY) is a critical minerals company at the forefront of reshaping the U.S. rare earths industry. Through its wholly owned subsidiary, Wyoming Rare (USA) Inc. (“WRI”), the company is advancing the Halleck Creek Project in Wyoming—a world-class rare earth deposit with the potential to secure America’s critical mineral independence for generations. Located on Wyoming State land, the Cowboy State Mine within Halleck Creek offers cost-efficient open-pit mining methods and benefits from streamlined permitting processes in this mining-friendly state.

With plans for onsite mineral processing and separation facilities, Halleck Creek is strategically positioned to reduce U.S. reliance on imports—predominantly from China—while meeting the growing demand for rare earth elements essential to defense, advanced technologies, and economic security. As exploration progresses, the project’s untapped potential on both State and Federal lands further reinforces its significance as a cornerstone of U.S. supply chain security. In addition to its resource potential, American Rare Earths is committed to environmentally responsible mining practices and continues to collaborate with U.S. Government-supported R&D programs to develop innovative extraction and processing technologies for rare earth elements.

For more information:

Media Contact:

Susan Assadi
sassadi@americanree.com
347 977 7125

Investor Relations US Contact:

Beverly Jedynak
Beverly.jedynak@viriathus.com
312 943 1123

                               

¹ ASX Announcement 23 September 2025
² https://netl.doe.gov/node/13549
³ ASX Announcement 19 November 2025

FAQ

What did American Rare Earths (AMRRY) provide to the DOE METALLIC consortium?

The company provided approximately 5 tonnes of allanite ore from Cowboy State Mine in December 2025. According to the company, this feedstock will be used across METALLIC’s four test centers to evaluate and compare processing methods.

Why is AMRRY’s selection by the METALLIC consortium important for investors in AMRRY?

It offers technical validation and potential process improvements from national labs. According to the company, METALLIC testing could identify more efficient, cost‑effective methods for capturing and refining magnetic rare earth elements.

Which laboratories will work with AMRRY ore through the METALLIC program?

METALLIC combines research from nine national labs, including earlier collaborators LLNL, INL and ORNL. According to the company, these labs will test ARR’s flowsheets and novel processing approaches on its ore.

How will METALLIC testing affect ARR’s processing flowsheets and commercialization plans?

METALLIC testing provides third‑party affirmation of ARR’s processing flowsheets and may reveal efficiency gains. According to the company, validated methods could help de‑risk and accelerate domestic rare earths commercialization efforts.