Eclipse Metals (ASX:EPM) completes ~1,200 metres of drilling across the Ivigtût dual critical-mineral system

Eclipse Metals has completed its 2025 field season in southwest Greenland, with a combined ~1,200 metres of diamond drilling carried out across the Grønnedal and Ivigtût prospects, marking a substantive technical step for the Company’s dual critical-mineral system.

The program provides new geological insight into both the carbonatite-hosted rare earth domain at Grønnedal and the fluorine-rich polymetallic system at Ivigtût, which together sit within one consolidated licence and are located only 7.5 kilometres apart.

Highlights

• ~1,200 metres of diamond drilling completed across the 2025 Greenland field season (Grønnedal and Ivigtût).

• Two NQ diamond holes at Ivigtût for a total of 503 metres, confirming a polymetallic, REE-fertile system.

• Core logging reveals fluorite-topaz development, sulphide assemblages and late-stage carbonatitic fluid interaction.

• Grønnedal JORC 2012 Inferred Resource stands at 89 Mt at 6,363 ppm TREO, with Nd-Pr dominant mineralisation.

• Recent SGS mineralogical work confirms elevated yttrium values from 39–777 ppm at Grønnedal.

• Yttrium and broader REE distribution support the rare earth basket potential.

• Both systems align with Greenland’s Mineral Resources Strategy 2025–2029.

Building a technical foundation across a dual-system district

The Company’s 2025 drilling program spanned both sides of the Ivigtût Project, reflecting the geological breadth of the broader district.

Grønnedal remains an extensive carbonatite-hosted rare earth system, supported by an 89 Mt JORC Inferred Resource grading 6,363 ppm TREO, with Nd-Pr dominant mineralisation and coarse-grained bastnäsite, synchysite and monazite that exhibit favourable liberation characteristics.

At the same time, the Ivigtût prospect, historically mined for cryolite, continues to demonstrate polymetallic and industrial-mineral potential through its fluorine-rich assemblages and a mineralisation suite that includes fluorite, quartz, galena, sphalerite, siderite and cryolithionite.

The 503 metres drilled at Ivigtût comprised two NQ core holes strategically positioned beneath the historic open pit.

Visual logging indicates a system influenced by late-stage carbonatitic fluids, with strong siderite and calcite intergrowths, magnetite and hematite reaction textures and evolved fluorine-rich mineralisation containing fluorite, topaz and quartz.

Frequent occurrences of galena, sphalerite, pyrite, chalcopyrite and pyrrhotite reinforce the historically observed polymetallic character, while these observations also expand the rare earth potential of the pit environment beyond the previously mined cryolite zones.

Within Grønnedal, SGS Canada mineralogy confirmed elevated yttrium values hosted within the monazite–synchysite assemblage, consistent with the existing Mineral Resource Estimate that includes an estimated 26,115 tonnes of contained Y₂O₃.

This supports the position of Grønnedal as a rare earth system containing both light and critical heavy rare earth elements.

Metallurgical characterisation through SGS TIMA-X studies further suggests liberation levels of up to 54 per cent for synchysite and bastnäsite at coarse sizes and up to 43 per cent for monazite, a feature that aligns with efficient processing pathways observed at comparable Western carbonatite systems.

Expanding the broader district model

The Company notes that only about six per cent of the mapped Grønnedal carbonatite body is incorporated into the current resource, with drilling to date ending in mineralisation and the envelope remaining open in all directions.

Meanwhile, Ivigtût retains clear potential for a staged development pathway through existing mineralised waste, supported by past assays highlighting enrichment in Ag, Zn, Pb, Cu, Ga, Li and Rb.

Together, the combined system offers large-scale Nd-Pr supply from Grønnedal, polymetallic and industrial-mineral potential from Ivigtût and a suite of heavy rare earth and yttrium credits.

The near-coastal location, deep-water access and proximity to hydropower infrastructure strengthen the logistical foundations for future development.

Eclipse Metals is now integrating visual core data, historical datasets and bulk-sample results to establish priority targets ahead of assay results expected in Q1 2026.

Metallurgical and mineralogical testwork will advance further during 2026 as the Company continues development planning for the Grønnedal rare earth resource.

With both Grønnedal and Ivigtût aligned to Greenland’s Mineral Resources Strategy 2025–2029, the dual-system district sits within a favourable policy environment for critical-minerals development supporting European and North American energy transition requirements.

Strategic discussions with U.S. advisory partners reflect corporate intent to assess complementary capital-market pathways as the technical dataset expands.

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