Eclipse Metals Limited has completed geological mapping and rock-chip sampling across the Grønnedal Rare Earths Project in southwest Greenland, while ongoing metallurgical and mineralogical programs continue to advance development of the carbonatite-hosted deposit.

The field program, completed in August 2026, involved collecting 54 rock-chip samples to refine the interpretation of geological contacts and mineralised trends across the carbonatite system. Assay results from the sampling are anticipated during the fourth quarter of 2026 and will be integrated with existing drilling and geophysical data to delineate higher-confidence targets for future resource expansion drilling.

The project is situated within exploration licence MEL2007-45 in southwest Greenland and forms part of the company's broader Ivigtût critical minerals portfolio. Grønnedal currently hosts a Mineral Resource estimate of 208 million tonnes at 0.72% Total Rare Earth Oxides, containing approximately 1.5 million tonnes of TREO, which includes about 456,000 tonnes of neodymium and praseodymium oxides. This resource reflects a substantial increase from the previous estimate of 89.2 million tonnes at 6,363 parts per million TREO.

In parallel with field activities, metallurgical test work is underway at ALS Global in Western Australia using four composite samples derived from 2025 diamond drill core. Supported by Tetra Tech, the program is evaluating physical-separation techniques prior to flotation and leach testing to determine whether lower-grade material can be rejected ahead of downstream processing. Advanced mineralogical characterisation is also being conducted at The University of Western Australia’s Centre for Microscopy, Characterisation and Analysis to identify rare earth host minerals and assess liberation characteristics.

“Grønnedal already has significant scale, with a 208 Mt Mineral Resource containing approximately 1.5 Mt TREO. Our immediate focus is to strengthen the technical foundations of the Project. The August mapping and sampling, mineralogical work at UWA and metallurgical testing at ALS are intended to improve the precision of future drill targeting and deepen our understanding of potential beneficiation pathways. Together, these workstreams will guide future drilling aimed at testing extensions to the known mineralised system and potential Mineral Resource growth.”

— Carl Popal, Executive Chairman

The combined datasets from the field, mineralogical and metallurgical workstreams are designed to reduce technical uncertainty and support future drilling aimed at testing extensions beyond the current Mineral Resource boundary.

Read the full announcement: Gronnedal Workstreams Advance Project Development