Grønnedal Rare Earths Resource Soars 70-Fold to 89 Million Tonnes at 6,363 ppm TREO

A Quantum Leap in Rare Earths

Eclipse Metals Limited (ASX, EPM) has dramatically expanded its rare earth elements (REE) resource at the Grønnedal deposit in southwest Greenland, announcing an inferred mineral resource of 89 million tonnes at a grade of 6,363 ppm Total Rare Earth Oxides (TREO). This represents a more than 70-fold increase from the maiden resource declared just over a year ago, signaling a major step-change in the project's scale and strategic importance.

The Grønnedal deposit, part of Eclipse’s wholly owned Ivigtût multi-commodity project, now contains an estimated 567,600 tonnes of TREO, including significant quantities of critical magnetic rare earths such as neodymium (Nd), praseodymium (Pr), dysprosium (Dy), and terbium (Tb). These elements are essential for electric vehicles, renewable energy technologies, and defense applications, underscoring the deposit’s relevance amid global supply chain diversification efforts.

Geology and Resource Expansion

The resource is hosted within a carbonatite intrusive complex measuring approximately 1.4 km by 0.75 km, with mineralisation confirmed from surface to depths of at least 200 metres and indications it extends beyond 500 metres. The updated resource incorporates new analytical data from six historic diamond drill holes, all intersecting mineralisation, alongside recent percussion drilling and extensive surface sampling.

Eclipse’s Executive Chairman Carl Popal described the milestone as “transformational,” highlighting that the current resource represents only a fraction of the total carbonatite body. The mineralisation remains open in all directions, offering substantial upside potential as further drilling is planned to delineate the broader deposit.

Strategic and Economic Implications

Grønnedal’s high average grade of over 6,000 ppm TREO places it among the world’s highest-grade REE deposits. The presence of both light and heavy rare earth oxides aligns well with increasing global demand for clean energy and defense technologies. The project’s location in Greenland offers geopolitical stability, deep-water port access, and proximity to European and North American markets, enhancing its attractiveness as a secure critical minerals supply source.

While no detailed mining or metallurgical studies have yet been completed, Eclipse anticipates potential for low strip ratio open pit mining and is advancing mineralogical and metallurgical test work, with results expected by the end of 2025. The company is also engaging with strategic partners and government stakeholders to progress development responsibly and transparently.

Looking Ahead

This substantial resource upgrade positions Eclipse Metals as a rising player in the global rare earths sector. However, the resource remains 100% inferred, and the path to economic extraction will require further drilling, metallurgical validation, and environmental assessments. The company’s next steps will be closely watched by investors seeking exposure to critical minerals underpinning the energy transition.