Eclipse Metals (ASX:EPM) Grønnedal drilling confirms continuity in Greenland carbonatite system

Eclipse Metals has reported continued progress at its Grønnedal rare earths prospect in southwest Greenland, where the company has now completed more than 700 metres of diamond drilling.

The program has confirmed continuous carbonatite mineralisation from surface, reinforcing earlier geological interpretations and underpinning the project’s emerging scale.

The drilling is part of the company’s broader strategy within Mineral Exploration Licence MEL 2007-45, which also includes the nearby Ivigtût polymetallic prospect.

Highlights

• Continuous carbonatite intersections from surface to depths approaching 190 metres
• Core shows alternating calcite and siderite carbonatite enriched in hematite and magnetite
• Results support the existing 89Mt at 6,363 ppm TREO mineral resource estimate
• Drilling has now moved to the Ivigtût polymetallic system, centred on a historic mine site
• Work aligns with Greenland’s critical minerals development framework

The Grønnedal system is characterised as a large carbonatite complex hosting rare earth elements associated with carbonate and iron oxide assemblages.

The company’s current drilling campaign comprised five diamond core holes designed to test continuity in the northern portion of the intrusion.

Core recoveries were reported as typically near 100 per cent, and visual logging has recorded consistent mineralisation throughout the drilled sequence. Analytical assays are pending, with laboratory results expected in the first quarter of 2026.

The project’s existing JORC-compliant inferred mineral resource of 89 million tonnes at 6,363 ppm total rare earth oxide represents only a small fraction of the broader carbonatite system identified to date.

The latest drilling observations support earlier trenching and historical diamond drilling conducted in the 1970s, indicating the carbonatite extends both laterally and vertically.

Mineralised zones observed in core include bastnäsite-bearing carbonatite, magnetite-rich carbonate units and carbonatite breccias with altered syenite clasts, reflecting a multi-phase intrusive and hydrothermal mineralising environment.

The strategic relevance of the project relates to its rare earth composition, which includes neodymium, praseodymium, dysprosium and terbium.

These elements play a central role in the production of high-performance permanent magnets used in electric vehicles, renewable energy infrastructure and advanced electronics.

Carbonatite-hosted rare earth systems are globally uncommon but form the basis of several established production centres.

Eclipse Metals Executive Chairman, Carl Popal, noted the significance of confirming geological continuity at depth, stating

“Our drilling confirms the continuity of the Grønnedal carbonatite and supports the scale potential demonstrated by the 89Mt inferred resource. Each metre of core reinforces the project’s geological simplicity and amenability to conventional processing.”

Drilling has since progressed to Ivigtût, located approximately seven kilometres away, where the focus is on defining multi-commodity mineralisation associated with fluorite, quartz, galena, sphalerite, siderite and cryolithionite near the historic cryolite pit.

Early field assessments have identified silver, zinc, copper, lead, gallium and lithium occurrences, and current work aims to determine the geometry and grade distribution of these zones to support future metallurgical and resource studies.

The combined Grønnedal and Ivigtût prospects provide Eclipse with exposure to rare earth and polymetallic markets at a time of heightened interest in secure critical minerals supply chains.

The company’s activities align with Greenland’s mineral development strategy, which emphasises responsible project advancement and international investment partnerships.

The next key step will be the release of assay results and subsequent interpretation, which will further define the scale and development potential of both prospects.

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