FDR sharpens Selta rare-earth targets after high-grade stream results

First Development Resources Plc ( (GB:FDR) ) has shared an announcement.

First Development Resources has reported encouraging stream sediment results from its December 2025 programme at the Selta rare-earths project in Australia’s Northern Territory. The work focused on the West Nintabrinna and Ingallan target areas and was designed as a low-cost, first-pass campaign to refine previously identified rare-earth and lithium anomalism.

At West Nintabrinna, assays returned up to 2,103 ppm total rare-earth elements plus yttrium, defining a coherent “Tourmaline” target and shrinking the exploration footprint from about 75km² to 5km², which significantly improves targeting precision and cost efficiency. At Ingallan, peak values of 385 ppm TREE+Y delineated the “Peake Bore” target and reduced the search area from roughly 90km² to 8.5km², with pale-weathering outcrops and favourable granite proximity highlighting potential pegmatite-hosted rare-earth and lithium mineralisation.

The geochemical signatures at both targets indicate evolved, fractionated granitic systems with localised enrichment in incompatible elements, supporting the presence of discrete intrusive or pegmatitic bodies rather than diffuse background anomalies. These results materially advance FDR’s understanding of Selta’s rare-earth potential and provide a clear pathway for systematic follow-up work.

FDR now plans detailed mapping, rock-chip sampling, targeted geochemical surveys and assessment of high-resolution geophysics to refine drill targets at the Tourmaline and Peake Bore zones. Rare-earth exploration at Selta remains central to the company’s strategy alongside geophysical work at the Lander West gold target, positioning the firm to potentially enhance its portfolio in critical minerals as it moves toward possible drilling.

More about First Development Resources Plc

First Development Resources is a UK-based, Australia-focused mineral exploration company listed on AIM, with projects in Western Australia and the Northern Territory. The company is targeting rare-earth elements, lithium and gold, with its flagship Selta Project in the Aileron Province positioned in a Proterozoic terrane known for evolved granitic systems and rare-metal mineralisation.

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