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American Rare Earths (ASX: ARR | OTCQX: ARRNF | ADR: AMRRY) ("ARR" or "the Company") is pleased to provide an overview of its quarterly activities for the period ending 31 December 2024. This review highlights the key achievements and ongoing activities that are shaping the Company’s future development. The Company continued its upward trajectory in the fourth quarter of 2024, advancing its Halleck Creek Project. With new partnerships, facility developments, and robust drilling results, ARR is poised to solidify its role as a cornerstone of the U.S. critical minerals supply chain.
Highlights
- Strategic Collaboration with BMO Capital Markets: The engagement of BMO Capital Markets as a financial advisor is a critical milestone in ARR’s strategy to accelerate the development of Halleck Creek by securing strategic investments and partnerships
- High-Grade Drilling Results: The Cowboy State Mine at the Halleck Creek Project yielded some of the highest- grade Total Rare Earth Oxide (TREO) results to date, including:
- 148.0m @ 4,451 ppm TREO (max 6,198 ppm TREO)
- Strategic Facility Secured: ARR’s subsidiary, Wyoming Rare USA Inc., secured a key facility at the Western Research Institute in Wyoming. This facility will centralise operations, house core samples, and serve as the future site for a pilot plant
- $7.1 Million State Grant: ARR received the first reimbursement of over A$450,000 from the Wyoming Energy Authority to support ongoing initiatives
Strategic Engagement
ARR engaged BMO Capital Markets, a global leader in metals and mining financial advisory, to accelerate the development of its Halleck Creek Project in Wyoming. BMO will assist ARR and its U.S. subsidiary, Wyoming Rare USA Inc., in securing strategic investments, partnerships, joint ventures, and offtake agreements to position Halleck Creek as a cornerstone of the U.S. critical minerals supply chain. This move aligns with growing U.S. bipartisan support for onshoring critical minerals and Wyoming’s economic goals. With support from the Wyoming Energy Authority and a Letter of Interest from the U.S. Export-Import Bank, ARR aims to capitalise on favourable market dynamics and establish long-term shareholder value while contributing to the national agenda for a secure, domestic rare earth supply chain.
Drilling Operations
ARR announced on 27 November final assay results from its 2024 drilling campaign at the Cowboy State Mine (CSM) within the Halleck Creek Project, Wyoming. These results highlight some of the highest-grade Total Rare Earth Oxide (TREO) intersections recorded in the region, confirming the project’s potential as a leading North American rare earth resource.
Key Highlights:
- High-Grade Intersections:
- HC24-RM046: 148.0 m @ 4,451 ppm TREO, including 52.5 m @ 5,273 ppm TREO (maximum 6,198 ppm TREO)
- HC24-RM048: 161.5 m @ 4,275 ppm TREO, including 40.5 m @ 5,287 ppm TREO (maximum 5,869 ppm TREO)
- HC24-RM049: 90.0 m @ 4,353 ppm TREO, including 16.5 m @ 5,313 ppm TREO (maximum 6,049 ppm TREO)
Drilling results demonstrate extensive high-grade zones, which will support updated geological models and resource estimates, crucial for advancing the project’s development.
These results emphasise the project’s potential to become a flagship rare earth resource for North America, aligning with the U.S. government’s strategic push to secure domestic critical mineral supply chains for defence and energy transition needs.
2024 Drill Hole Locations and Assay Summaries
With geological maps updated and Odessa Resources Ltd refining resource estimates, ARR announced an updated resource estimate on 29 January 2025 is and progressing a Pre-Feasibility Study (PFS), while engaging with strategic partners to unlock the project’s value.
Facility to Support Halleck Creek Project
Wyoming Rare (USA) Inc. secured a facility at the Western Research Institute in Laramie, Wyoming, marking a major step forward for the Halleck Creek Rare Earths Project. The facility will centralise operations by housing all drill core and assay samples and will also accommodate the construction of a pilot plant to advance rare earth processing capabilities. This partnership with the Western Research Institute, a renowned non-profit organisation specialising in energy systems and materials research, enables collaboration to enhance critical mineral development. The move aligns with Wyoming’s strategic goal of becoming a leader in rare earth element development while supporting the onshoring of critical mineral supply chains for the USA.
Wyoming Grant
The Company has received its first reimbursement of over A$450,000 from the Wyoming Energy Authority (WEA) grant, marking progress in developing the Cowboy State Mine at Halleck Creek. Part of a larger A$10.7 million (US$7.1 million) grant awarded in June 2024, the funds will support exploration drilling, environmental studies, and prefeasibility assessments, helping de-risk the project and achieve the Company’s 2025 goals. This milestone underscores ARR’s commitment to advancing the project and collaborating with the WEA to support Wyoming's energy strategy.
Corporate
After many years of service to the Company farewelled Geoff Hill, a founding shareholder and long-standing member of the Board. ARR thanks Geoff for his exceptional leadership and strategic insights, which have significantly contributed to the Company’s growth and strengthened its position in the rare earths sector. His dedication and guidance leave a lasting legacy, providing a strong foundation for ARR’s future success.
The Company welcomed Mr. Hugh Keller to the Board as a Non-Executive Director, bringing extensive experience from his 34-year legal career at Dawson Waldron (now Ashurst) and various leadership roles across ASX-listed companies, private investment firms, and charities. Currently serving as a Non-Executive Director and Audit Committee Chairman for Cobalt Blue Holdings Limited, Hugh adds expertise in commercial contracts, audit procedures, and team leadership to the Board.
CEO, Chris Gibbs, was appointed as a Non-Executive Director on the Board of Godolphin Resources Limited (ASX: GRL). This appointment aligns with ARR’s increased investment in Godolphin, raising its shareholding to 19.82%, supported by a contribution of up to $510,000 to advance key projects, including the Lewis Ponds Gold and Base Metals Project and the Narraburra Rare Earths Project in New South Wales.
Melissa Sanderson has been appointed Co-Chair of the Critical Minerals Institute (CMI), a global organisation addressing challenges in the minerals sector. This role underscores her expertise in sustainable development and policy advocacy, aligning with ARR's mission to establish a secure North American rare earth elements (REE) supply chain. Mel’s extensive experience in geopolitics and ESG strategies further strengthens ARR’s leadership in advancing a sustainable and ethically sourced REE supply chain.
The Company’s Annual General Meeting was held on November 28, 2024.
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Investor Insight
American Rare Earths is unlocking the USA’s rare earths potential through its strategic, high-value asset in Wyoming, ramping up its development to bolster the North American critical minerals supply chain.
Overview
American Rare Earths (ASX:ARR,OTCQX:ARRNF,ADR:AMRRY) is a critical minerals exploration company focused on its 100 percent owned Halleck Creek project in Wyoming. This project represents the largest known rare earth deposit in the US, with high concentrations of key magnet elements such as neodymium, praseodymium, dysprosium and terbium—essential components for renewable energy, electric vehicles and advanced defense systems.
The US currently depends on China for 80 to 90 percent of its rare earth processing, which poses a significant supply chain risk. Halleck Creek’s vast resource, with a 2.63-billion-ton JORC estimate at 3,292 parts per million (ppm) total rare earth oxide (TREO), provides an opportunity to secure domestic supply for nearly 100 years.
Beyond its substantial resource base, the project offers significant exploration upside, presenting a multi-generational opportunity to establish a sustainable rare earths supply chain in the US. The support from EXIM Bank further highlights the strategic importance of Halleck Creek in reducing U.S. dependency on foreign suppliers.Company Highlights
- American Rare Earth’s flagship project, Halleck Creek, is one of North America’s largest REE deposits. With a 2.63-billion-ton JORC resource at 3,292 ppm TREO, it holds the potential to meet US rare earths demand for approximately 100 years.
- The company is completely focused on developing a US-based critical minerals supply chain, aligning with US policies to reduce reliance on China for rare earth supply.
- The Halleck Creek project’s planned development consists of two phases. Phase 1 entails development of the Cowboy State mine, which is located entirely on Wyoming state land, enabling faster permitting and streamlined regulatory processes. Subsequently, cash flow generated from CSM will support development of the federal portions of Halleck Creek in Phase 2.
- This phased approach allows ARR to accelerate its pathway to production, enhance shareholder value, and strengthen its position as a key domestic supplier of rare earth elements in the United States.
- Well-positioned to address critical supply chain vulnerabilities, Halleck Creek benefits from strong federal and state support, including a non-binding EXIM Bank letter of interest for funding up to $456 million.
Key Projects
Halleck Creek Project (Wyoming)
The Halleck Creek project in Albany County, Wyoming, is the cornerstone of ARR’s growth strategy. Recognized as one of the largest, rare-earth deposits in North America, it boasts a JORC-compliant resource of 2.63 billion tons at 3,292 ppm TREO. The deposit is hosted in Precambrian granites and metamorphic rocks, which contain REE-enriched minerals like monazite and bastnaesite. The coarse-grained nature of the mineralization ensures cost-effective extraction and processing.
The high TREO content and low levels of impurities make Halleck Creek well-suited for producing separated rare earth oxides, particularly key magnet elements such as neodymium, praseodymium, terbium and dysprosium. The project’s proximity to established infrastructure, including roads and utilities, supports cost-efficient development. Detailed geological surveys have delineated a large, continuous mineralized zone, which currently covers only 16 percent of the total land package. Advanced metallurgical testing has confirmed recovery rates of up to 67 percent, with further optimization efforts ongoing. Drilling campaigns in 2024 successfully expanded resource estimates, validating the deposit’s scalability.
ARR plans to take a phased development approach for Halleck Creek, designed to maximize early value while minimizing risk. Phase 1 entails the development of the Cowboy State mine (CSM), which will focus on mining high-grade zones and generating early cash flow. Phase 1 will be developed entirely on Wyoming state land, enabling faster permitting and streamlined regulatory processes.
According to the Phase 1 Scoping Study, the CSM development is projected to require an initial capex of $380 million, with a 20 percent contingency. The study estimates an NPV of $430 million at a 10 percent discount rate and an IRR of 21.1 percent, based on a 3-million-ton-per-annum throughput rate. The project is expected to have a payback period of 2.9 years and a life of mine exceeding 20 years, with significant potential for future expansion.
In Phase 2, ARR plans to expand operations into federal land areas within the Halleck Creek property. This phase involves de-risking the federal portions of the project by leveraging cash flow from the initial phase and advancing permitting processes in parallel. Additionally, ARR is actively engaging with state regulators and local stakeholders to ensure compliance and support for its phased development approach.
Upcoming Work
ARR is advancing its development efforts on Halleck Creek over several fronts. The company plans to conduct additional drilling aimed at expanding the resource by targeting unexplored zones with known mineralization. In parallel, Phase 2 metallurgical testing will focus on improving recovery rates and producing high purity separated rare earth oxides to enhance project economics. To maintain its accelerated timeline, ARR is making progress on permitting, including advancing state-level approvals and environmental baseline studies for the CSM area. Furthermore, the company plans to initiate a pre-feasibility study (PFS) by late 2025, emphasizing a phased development strategy that includes the CSM as a key component.
La Paz Project (Arizona)
The La Paz project, located in western Arizona, is a promising asset in ARR’s portfolio, featuring a 171-million-ton JORC resource. The deposit is enriched in light rare earth elements, particularly cerium, lanthanum and neodymium, which are critical for renewable energy technologies and electric vehicles. The project benefits from excellent infrastructure, including proximity to roads and power. ARR continues to evaluate the potential for expanding the resource and advancing the project through further drilling and metallurgical testing. Although secondary to Halleck Creek, it holds potential as a long-term asset for ARR’s portfolio.
Beaver Creek (Wyoming)
This project is located near Halleck Creek and shares similar geological characteristics, indicating potential for significant rare earth mineralization. Preliminary fieldwork has identified areas with elevated rare earth element concentrations, and ARR plans to conduct detailed mapping and geophysical surveys to define drill targets.
Searchlight (Nevada)
Situated close to Mountain Pass, the only currently operating rare earth mine in the US, the Searchlight project is strategically located in a region known for its rare earth potential. ARR’s exploration strategy includes leveraging historical data and conducting modern geochemical sampling to identify high-priority areas for further exploration.
Leadership Team
Chris Gibbs - CEO & Executive Director
Appointed in November 2021, Chris Gibbs brings more than 30 years of experience in the resource sector across Australia, Canada, the US, South America, Africa and Europe. His track record includes driving growth and operational excellence for industry-leading mining companies. Prior to joining ARR, Gibbs held senior positions at Argonaut Gold, Centerra Gold, Barrick Gold, Placer Dome and Millennium Chemicals.
Joe Evers - President
Joe Evers has served in various leadership roles in the energy and mining industry. Most recently, Evers served as general counsel of American Rare Earths. Prior to that, he was corporate counsel at an international mining company and held positions of increasing responsibility in the land and policy departments at a publicly traded oil and gas company. Originally hailing from Sheridan, Wyoming, Evers received a bachelor’s degree and JD/MA in Environment & Natural Resources from the University of Wyoming. Evers was instrumental in securing a US$7.1 million grant from the State of Wyoming with support from partners Wyoming Energy Authority and the University of Wyoming Energy Resources Council.
Dwight Kinnes - Chief Technical Officer
A geologist with decades of experience, Dwight Kinnes has specialized in geological modeling of complex deposits in various international locations. Before joining ARR, he served as president of Highland GeoComputing LLC for 17 years, providing geological field services, modeling, GIS and database management to the mining industry.
Wayne Kernaghan - Company Secretary
Appointed on September 25, 2020. Wayne Kernaghan is a member of the Institute of Chartered Accountants in Australia with over 35 years’ experience in various areas of the mining industry. He is a fellow of the Australian Institute of Company Directors and a chartered secretary.
Board of Directors
Richard Hudson - Chairman
Richard Hudson contributes deep leadership expertise in mining and exploration, with a focus on mineral royalties, mineral economics, financial management, strategic planning and acquisitions. His extensive experience enhances the board's capacity to guide ARR's strategic initiatives.
Sten L Gustafson - Non-executive Director and Deputy Chairman
Sten Gustafson is the chief executive officer and a director of Pyrophyte Acquisition (NYSE:PHYT), a special purpose acquisition company focused on companies that provide products, services, equipment and technologies that support a variety of energy transition solutions. He is a highly experienced energy service industry executive, investment banker and corporate securities attorney. With over 25 years of experience in the global energy sector, Gustafson has advised on more than 100 corporate transactions worldwide worth over US$100 billion in value.
Melissa ‘Mel’ Sanderson - Non-executive Director
Melissa Sanderson’s international career has spanned diplomacy and mining for more than 30 years. She is adept at cross-cultural communication and brings exceptional leadership experience in inclusivity and diversity issues. At global mining leader Freeport-McMoRan, Sanderson sited, staffed and ran a corporate office focused on government and public relations and social responsibility programs. She has also served as a senior diplomat in the US Department of State.
Hugh Keller - Non-executive Director
Hugh Keller had a successful 34 year career as a partner at the law firm Dawson Waldron (now Ashurst) until retirement from full time legal practice in 2010. During this time, Keller served as joint national managing partner, Sydney office managing partner, chairman of the staff superannuation fund, one of the practice leaders, and as a board member. He was a non-executive director of ASX listed Thakral Holdings and a member of its audit committee until the company was acquired in a public takeover by Brookfield. He was a non-executive director of LJ Hooker and a member of its audit committee. He has also served as chairman of a large private investment company, several small investment companies and a private small exploration company. Keller has extensive legal experience and expertise in commercial contracts and arrangements, and public company audit committee procedures and requirements. He has led large teams of professionals and successfully managed people and resources in large projects.
Advancing one of the largest REE deposits in North America
Critical Metals Corp NASDAQ CRML Reports Massive Mineralization Extension & Continues Resource Expansion These (3) 2024 Drilling Holes Intercepted Exceptional Rare Earth Elements Grading TREO Range 0.40% to 0.42% & HREO ∼26% Across our Flagship Core Asset Tanbreez in Greenland
- Consistent high-grade rare earth mineralization intersected in all four reported holes, with Total Rare Earth Oxide (TREO) grades between 0.40% and 0.42%.
- High proportion of heavy rare earth oxides (HREO) ~26% of TREO, reinforcing the deposit’s potential strategic value.
- Significant zirconium oxide (ZrO₂) grades of 1.57–1.58% across all holes.
- Gallium oxide (Ga₂O₃) assays between 93–99 ppm, providing a potential additional economic credit.
- All holes drilled vertically (-90°) through sub-horizontal, stratiform kakortokite layers, intersecting mineralisation at approximately true thicknesses.
- Mineralisation remains open at depth in all reported holes.
- Drilling confirms continuity of grade and mineralogy across multiple sections of the Fjord Deposit, consistent with historical data.
- All the drill holes were collared within the Fjord Deposit with 23.6MT @ 0.42% TREO Maiden Mineral Resource.
- The holes are part of the ongoing 2024–2025 Fjord Resource Upgrade program, with over 1900 m drilled to date in 2025 and further assays pending.
Tony Sage, Executive Chairman of the Company, commented:
“These additional 2024 diamond drill hole results indicate the consistent grades of rare earth and gallium, with a high proportion of critical heavy rare earths. Our rare earth grades and gallium concentration, position Tanbreez as a strategically important asset for Western supply chains. With China's control over the rare earth market and gallium, securing sources of these critical minerals has become paramount for U.S. defense capabilities and national security. The progress we've made, with 1,316 meters of diamond core drilling completed in 2024, and over 1,850 meters of drilling as part of our 2025 Fjord Resource Upgrade resource extension program, significantly strengthens our ability to build on our substantial resource base. With further assays pending and more drilling underway, we see strong potential to grow the scale and nature of the project's mineral inventory.”
Summary New Drill Hole Results
Drill hole collars and assay Tables 1 and 2 and Figure 1 and Appendix 1, 2 and 3.
| Hole ID | Depth (m) | TREO (%) | HREO (% of TREO) | ZrO₂ (%) | Ga₂O₃ (ppm) | ||||||
| D-24 | 85.70 | 0.42 | 26.3% | 1.58 | 99 | ||||||
| E-24 | 62.30 | 0.40 | 26.5% | 1.57 | 93 | ||||||
| F-24 | 107.45 | 0.40 | 25.5 | 1.57 | 93 | ||||||
| Cut-off | 0.30 |
Table 1 – 2024 New assay results summary for D-24, E-24, F-24
New Drill Hole Results
Drill Hole D-24
Drilled vertically to 85.7m from surface and intersected high-grade rare earths and metal oxides mineralisation averaging:
- 0.42% TREO (including 25.9%,HREO)
- 1.57% ZrO2 zirconium oxide,
- 100ppm Ta2O5 tantalum pentoxide,
- 1340ppm Nb2O5 niobium pentoxide,
- 99ppm Ga2O3 gallium oxide,
- Mineralisation open at bottom of the hole,
- Mineralisation average from surface to 63m downhole.
Drill Hole E-24
Drilled vertically to 62.3m from surface and intersected high-grade rare earths and metal oxides mineralisation averaging:
- 0.39% TREO (including 26.2%,HREO)
- 1.56% ZrO2 zirconium oxide,
- 100ppm Ta2O5 tantalum pentoxide,
- 1330ppm Nb2O5 niobium pentoxide,
- 90ppm Ga2O3 gallium oxide,
- Mineralisation open at bottom of the hole,
- Mineralisation average from surface to 61.3m downhole.
Drill Hole F-24
Drilled vertically to 107.45m from surface and intersected high-grade rare earths and metal oxides mineralisation averaging:
- 0.40% TREO (including 25.6%,HREO)
- 1.57% ZrO2 zirconium oxide,
- 100ppm Ta2O5 tantalum pentoxide,
- 1260ppm Nb2O5 niobium pentoxide,
- 93ppm Ga2O3 gallium oxide,
- Mineralisation open at bottom of the hole,
- Mineralisation average from surface to 72m downhole.
Figure 1 - Tanbreez Site Visit August 29 Malcolm Day Director CRML, Greg Barnes JV Partner, George Karageorge CTO, Anna Wingle Tanbreez Mining Greenland
Figure 2 - Fjord and Hill Deposit drill hole locations for 2007, 2010, 2013, 2024 in red with 2025 drill hole collars completed in July with 9 diamond holes awaiting drilling.
Drill Hole Statistics
Drill hole collars and assay Tables 1 and 2 and Figure 1 and Appendix 1, 1A , 2 and 3.
| Hole ID | Depth From | Depth To | Interval | TREO% | HREO% | ZrO2 % | Ta2O5 ppm | Nb2O5 ppm | Ga2O5 ppm | |
| A1-24 | - | 40.00 | 40.00 | 0.48 | 0.13 | 1.86 | 134 | 1513 | 103 | |
| A2-24 | - | 41.00 | 41.00 | 0.51 | 0.14 | 1.96 | 145 | 1685 | 96 | |
| B-24 | - | 58.00 | 58.00 | 0.49 | 0.13 | 1.99 | 144 | 1651 | 101 | |
| C-24 | - | 65.00 | 65.00 | 0.54 | 0.14 | 1.98 | 156 | 1741 | 89 | |
| D-24 | 1.00 | 63.00 | 62.00 | 0.42 | 0.11 | 1.58 | 112 | 1344 | 99 | |
| E-24 | 1.00 | 62.30 | 61.30 | 0.40 | 0.11 | 1.57 | 105 | 1336 | 93 | |
| F-24 | 0.00 | 72.00 | 72.00 | 0.40 | 0.10 | 1.57 | 103 | 1256 | 93 |
Table 2 - 2024 Drill Hole Assay results summary to date 2024 diamond drill hole program in the Fjord Area. Assay results are reported for drill holes D, E and F. A1, A2, B and C were reported on 22 August 2025. Remaining assay results for holes G to Z are expected to be reported in Q3, 2025.
Background – Fjord Deposit Drilling
The 2024–2025 drilling campaign in the Fjord area has targeted confirmatory and step-out holes to:
- Validate historical drilling data.
- Refine the geological model for resource estimation.
- Provide material for metallurgical and environmental test work.
All drill holes in this program are vertical, intersecting the sub-horizontal layers at true thickness. The three holes reported here return TREO grades between ~0.40% and 0.42% with approximately 26% HREO, along with ZrO₂ values of 1.57–1.58% and gallium oxide contents of 93–99 ppm. These results are consistent with historical assays and demonstrate the persistence of grade and mineralogy across the Fjord deposit.
From a deposit classification perspective, the kakortokite-hosted REE mineralisation is best described as stratiform magmatic, confined entirely to the kakortokite unit and not observed in adjacent lithologies such as lujavrite or naujaite. This strong lithological control underpins confidence in resource modelling, supports bulk mining strategies, and provides reliable input for geology domaining.
Given the continuity of mineralization over several kilometres, the Fjord deposit represents a significant portion of the overall Tanbreez mineral inventory. Ongoing drilling is expected to further delineate these resources, with pending assays from additional holes likely to extend the known mineralised envelope and refine the grade distribution.
Sampling over the 2024 diamond holes was taken over kakortokite intervals above the Black Madonna lower boundary.
- Collar data: All collar locations, RLs, azimuths, dips, and hole lengths have been clearly presented in Table 2 of the report.
- Assay data: Table 1 in the report provides the suite of weighted average downhole assay results for TREO, HREO, Ga₂O₃, and other oxides.
- True widths: All drill holes are vertical (-90°) through sub horizontal mineralised layers, so intersections are true widths.
- No cut-off grades or metal equivalents were applied. All assays are reported at face value.
Gallium Results
The gallium oxide Ga2O3 mineralization assay results ranges from low to high is 90ppm to 100ppm for the four 2024 drillholes published to date.
Drill holes that were not assayed for gallium, tantalum and niobium in 2013 will be assayed from existing pulps submitted to ALS Metallurgical in Perth for analysis in the coming months.
ALS laboratories will also assay all sample for gallium for the 2024 and 2025 drill holes with results that will be published in September and October 2025. The gallium oxide results for all diamond holes published to date may add a credit to the TREO-HREO mixed concentrate.
Critical Metals Corp NASDAQ CRML – Surpasses 70% Completion Milestone of the Tanbreez Bankable Feasibility Study & Remains on Schedule for Completion on or Before Q4 2025
Critical Metals Corp. (Nasdaq: CRML) (“Critical Metals Corp” or the “Company”), a leading critical minerals mining company, today announced that Tanbreez Mining Greenland A/S (“Tanbreez”) is approximately 70% complete on the final stages of the Bankable Feasibility Study (BFS) for a 500,000 tons per annum mining and processing operation at the Tanbreez Rare Earth Project in South Greenland. The BFS is being led by Danish engineering firm NIRAS A/S (“NIRAS”), a globally leading multidisciplinary engineering and environmental consultancy based in Denmark. The BFS remains on track for submission in Q4 2025. In addition, NIRAS has completed environmental fieldwork for the 2025 baseline sampling program.
Tony Sage, Executive Chairman of the Company, commented:
“The progress on the final BFS engineering and the completion of the 868 baseline sampling program represent a major milestone in unlocking the full potential of the Tanbreez Rare Earth Project. Our partnership with NIRAS ensures that both technical and environmental aspects are being addressed to the highest standards, reinforcing our commitment to responsible development.”
This final BFS phase includes:
• Completion of mine design and process plant engineering
• Tailings management and water treatment strategies
• Integration of environmental and regulatory inputs
• Preparation of documentation for submission to Greenland’s MLSA
Figure 1. Proposed plant and port site.
The engineering scope encompasses detailed design of the two open pit mining phases, including blasting and haulage logistics, crushing and magnetic separation circuits, slurry transport systems, and tailings deposition infrastructure at Lake Foster. It also includes port and haul road layouts, diesel power generation, and worker accommodation facilities. NIRAS is integrating hydrological modelling, dust dispersion controls, and closure planning into the final design to ensure long-term environmental compliance, operational efficiency, and alignment with Greenland’s regulatory framework.
Figure 2 – NIRAS engineers at the proposed Tanbreez port site 27/8/2025
Once completed, which is expected in the fourth quarter of 2025, the BFS will form the central component of the Tanbreez updated Exploitation License documentation, to be submitted to the Mineral License and Safety Authority (MLSA) of Greenland, in accordance with the Greenlandic Mineral Resources Act and the specific terms of the granted exploitation license MIN 2020-54.
Figure 3 – NIRAS team undertaking August 2025 baseline marine sampling
This submission will support the progression of the project towards final approval to commence potential commercial mining operations.
Figure 4 - NIRAS FS finalization team
Completion of 2025 Baseline Sampling Program
In parallel, Critical Metals Corp confirms that environmental fieldwork for the 2025 baseline sampling program has officially been completed. This program—coordinated by NIRAS ran through August 2025 and was designed to close spatial and seasonal gaps in the existing baseline dataset.
Key components of the sampling campaign included:
- Bergerhoff dust monitoring
- All-year freshwater sampling across 19 stations
- Sediment coring in Lake Foster and Kangerluarsuk Fjord
- Arctic char population update via electrofishing
- Intertidal sampling of mussels, bladderwrack, and sea scorpion
Figure 5 – NIRAS team undertaking baseline marine fauna sampling August 2025
These efforts support the Environmental Impact Assessment (EIA) and reinforce Tanbreez’s commitment to responsible development.
About NIRAS
With nearly 70 years of experience, NIRAS has grown from a Danish consultancy into an international leader in sustainable progress. Founded by visionary engineers Jørgen Kristian Nielsen and Konrad Rauschenberger in 1956, NIRAS’s early projects in Greenland laid the foundation for their expertise in resilient and innovative solutions. Their decentralized structure fosters local expertise, adaptability and collaboration across borders and disciplines, ensuring sustainable value creation for their clients and the communities they serve.
As a multidisciplinary consultancy company with more than 3,000 employees located in 62 offices across Europe, Africa, Asia, North, and South America, NIRAS work within multiple areas from processing plants and construction over energy, water, environment, and infrastructure to third world aid and urban planning. NIRAS have 8,000 ongoing projects in more than 140 countries and their trademark is the crosscutting approach, always grounded and tailored to achieve the best outcomes for their clients and communities.
About Tanbreez
The Tanbreez Rare Earth Project is one of the world’s largest hard rock rare earth elements (REE) deposits, located in southern Greenland near the town of Qaqortoq. The project is notable for its high concentration of heavy rare earth oxides (HREOs), which are critical for high-tech applications, clean energy, and defence industries. Unlike other major TREO deposits, Tanbreez contains very low levels of uranium and thorium, making it more environmentally and politically viable.
- Deposit Type: Kakortokite (a stratiform layered igneous rock rich in TREOs)
- Kakortokite Estimate: ~4.7 billion tonnes of REE-bearing mineralisation
- Heavy REE Content: ~27% of Total Rare Earth Oxides (TREO)
- Location: Near Qaqortoq, southern Greenland
- Target drilling: ongoing to achieve Measured and Indicated Mineral Resources
- Project Stage: advanced Bankable Feasibility Study phase
Kakortokite host may not always contain any economic mineralisation of TREO.
About Critical Metals Corp.
Critical Metals Corp (Nasdaq: CRML) is a leading mining development company focused on critical metals and minerals, and producing strategic products essential to electrification and next generation technologies for Europe and its western world partners. Its flagship Project, Tanbreez, is one of the world's largest rare earth deposits and is located in Southern Greenland. The deposit is expected to have access to key transportation outlets as the area features year-round direct shipping access via deep water fjords that lead directly to the North Atlantic Ocean.
Another key asset is the Wolfsberg Lithium Project located in Carinthia, 270 km south of Vienna, Austria. The Wolfsberg Lithium Project is the first fully permitted mine in Europe and is strategically located with access to established road and rail infrastructure and is expected to be the next major producer of key lithium products to support the European market. Wolfsberg is well positioned with offtake and downstream partners to become a unique and valuable asset in an expanding geostrategic critical metals portfolio.
With this strategic asset portfolio, Critical Metals Corp is positioned to become a reliable and sustainable supplier of critical minerals essential for defense applications, the clean energy transition, and next-generation technologies in the western world.
For more information, please visit https://www.criticalmetalscorp.com/.
Cautionary Note Regarding Forward Looking Statements
This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements may include expectations of our business and the plans and objectives of management for future operations. These statements constitute projections, forecasts and forward-looking statements, and are not guarantees of performance. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. When used in this news release, forward-looking statements may be identified by the use of words such as “estimate,” “plan,” “project,” “forecast,” “intend,” “will,” “expect,” “anticipate,” “believe,” “seek,” “target,” “designed to” or other similar expressions that predict or indicate future events or trends or that are not statements of historical facts. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements.
Forward-looking statements are subject to known and unknown risks and uncertainties and are based on potentially inaccurate assumptions that could cause actual results to differ materially from those expected or implied by the forward-looking statements. Actual results could differ materially from those anticipated in forward-looking statements for many reasons, including the factors discussed under the “Risk Factors” section in the Company’s Annual Report on Form 20-F filed with the U.S. Securities and Exchange Commission. These forward-looking statements are based on information available as of the date of this news release, and expectations, forecasts and assumptions as of that date, involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements should not be relied upon as representing our views as of any subsequent date, and we do not undertake any obligation to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.
Critical Metals Corp.
Investor Relations: ir@criticalmetalscorp.com
Media: pr@criticalmetalscorp.com
Photos accompanying this announcement are available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/88d85eb6-7ec7-4eb8-a7f1-9541d0ea1e07
https://www.globenewswire.com/NewsRoom/AttachmentNg/78882267-a354-4f9d-bfc5-904be7463263
https://www.globenewswire.com/NewsRoom/AttachmentNg/2ee43546-681a-4bee-ab33-8753fe41123b
https://www.globenewswire.com/NewsRoom/AttachmentNg/4b7e57a1-6ec0-45eb-b5c2-1fe2fc557de3
https://www.globenewswire.com/NewsRoom/AttachmentNg/e76ca157-f762-463b-a9ef-4b68773af474
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