Critical Metals Corp. (Nasdaq:CRML) has reported exceptional assay results from both its recent and historical diamond drilling programme at its Tanbreez Project in southern Greenland.
New diamond drilling assay results from ten holes include:
- Gallium oxide (Ga2O3) from 80ppm to 140ppm: Gallium at this concentration exceeds average crustal abundance (~17ppm Ga), making it anomalous and potentially significant
- TREO range from 0.32% to 0.89% with 27% HREO: Representing a higher grade than previously reported for the upper zone
The drilling results for Diamond Hole A1-24 were:
- 0.47%TREO (including 27% averaged heavy rare earth (HREO)
- 1.82% ZrO2 “zircon oxide”
- 131ppm Ta2O “tantalum pentoxide”
- 1,852ppm Nb2O5 “niobium pentoxide”
- 394ppm HfO2 “hafnium oxide”
- 102ppm Ga2O3 “gallium oxide”
This also includes results from holes drilled in 2010 within the Hill Deposit Mineral Resource Estimate, which were assayed for the first time by ALS Metallurgical in June 2025. The company is now nearly finished with assaying the historical drill cores from the Rimbal period (2007-2013), and moving forward, future news flow will primarily be focused on current drilling results from the company’s 2024-2025 campaigns.
In January 2025, the company announced REE drill results from their 2024 diamond drilling programme from the Fjord Prospect at the Tanbreez Project, which consisted of 16 holes and a length of up to 2,200m. This was part of a confirmatory drill programme meant to optimize the resource for future production capacity and extend the overall mine life.
There are 7 additional drill holes from the 2024 diamond drilling programme that are awaiting reporting and will be released once ALS Metallurgical completes the ICP Fusion analysis for REE, HREE, and associated metal oxides. This is expected to occur in mid-September 2025.
Tony Sage, CEO and Executive Chairman of Critical Metals Corp. commented, “These exceptional results underscore the strategic value of Tanbreez as a rare earth and gallium project with scale, grade, and a high proportion of critical heavy rare earths. With China’s ban on gallium exports to the United States, securing domestic sources of these critical minerals has become paramount for U.S. defense capabilities and national security. Our gallium results, combined with our rare earth grades, position Tanbreez as a strategically important asset for Western supply chains. The progress we’ve made, processing all 2024 drill cores, submitting 50% of samples for assay, and already completing over 1,200 meters of drilling as part of our 2025 Fjord Resource Upgrade program, puts us in a strong position to build on our significant resource base. With further assays pending and more drilling underway, we see strong potential to grow the scale and world class nature of the project’s mineral inventory.”
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