Critical Metals Corp, listed on NASDAQ under the ticker CRML, witnessed a pronounced increase in its stock price on Wednesday afternoon, fueled by strong assay results emerging from its active 2025 drilling campaign at the Tanbreez rare earths project in Greenland. Investors keenly following the rare earths sector viewed these newly released data as a significant positive development for the company’s resource potential and long-term outlook.
The drilling program’s latest core sample analyses delivered impressive grades, with intervals ranging between 0.40% and 0.47% total rare earth oxides (TREO) in combination with yttrium. Of particular note, heavy rare earth elements (HREEs) constitute roughly 26% to 27% of the total rare earth element mix across multiple drill holes sampled within the Fjord and Upper Fjord zones. These zones are strategically important given their drilling footprint and mineralization profiles.
What differentiates this mineralization is not only the grade but its position beginning near the surface, which can lower extraction costs and enhance mining feasibility. Furthermore, the mineralized intervals remain open both along strike and at depth and demonstrate lateral continuity over a mineralized length approximating one kilometer. Such geological continuity hints at a deposit larger and more accessible than previous models had anticipated, carrying potential implications for the scale and economics of future mining operations.
Complementing the significant rare earth concentrations, the drilling also confirmed the presence of economically attractive by-products. These include gallium at concentrations around 100 parts per million (ppm) and hafnium near 300 ppm. Other by-products detected in meaningful quantities encompass niobium, tantalum, zirconium, and cerium. The presence of these elements enhances the deposit’s value proposition by opening multiple commodity revenue streams, reducing reliance solely on rare earth prices which are known for volatility.
Management has outlined expectations that these assay outcomes will feed directly into an updated mineral resource estimate. Alongside this, revised pit optimization studies are anticipated to refine the project’s pre-development planning phase. Stakeholders regard these technical milestones as critical de-risking steps essential for advancing Tanbreez towards project financing arrangements and eventual construction of mining infrastructure.
Tanbreez, already recognized as one of the largest rare-earth element deposits globally, holds strategic importance due to its geographical positioning within Greenland, a jurisdiction with favorable geopolitical attributes for Western supply chains. This status positions Critical Metals strategically in light of global supply dynamics for critical minerals.
Data from Benzinga Edge illustrate the market’s positive response, with CRML exhibiting an exceptionally high Momentum score of 97.46. This reflects robust price appreciation trends across short, medium, and long-term periods, consistent with the strong spike in share price observed on publication day.
At the time of reporting, CRML shares had surged approximately 32.10%, reaching a trading price of $17.87. This price action indicates robust investor enthusiasm driven by the enhanced understanding of the deposit’s scale, grade, and multi-commodity potential.
Looking ahead, the evolving data set and forthcoming updates on resource modeling and pit optimization will be closely monitored by market participants and analysts to better gauge the longer-term cash flow generation prospects and financing feasibility for the Tanbreez project.