Encounter Resources Limited (ASX: ENR) has reported a significant extension of high-grade niobium and rare earth element (REE) mineralisation at the Aileron Niobium-REE Project in the West Arunta region of Western Australia. New results from broad-spaced aircore drilling have identified a mineralised zone more than 500m east at Crean.

Mount Ridley Mines Limited (ASX: MRD) has declared a maiden Inferred Gallium Mineral Resource Estimate (JORC 2012) of 838.7Mt @ 29.3 ppm Ga (39.5 ppm Ga₂O₃) at a 25 ppm Ga cut-off across three blocks at the Mt Ridley Project, ~55 km NE of Esperance, WA (Figure 1). Mineralisation is shallow, flat-lying and clay/saprolite-hosted, with strong associations to HREE and scandium.

Boab Metals Limited (ASX: BML) has officially commenced Early Works at the Sorby Hills Silver-Lead-Zinc Project in WA’s East Kimberley (Figure 1)—moving from planning into on-ground activity and marking the formal start of mine development. The program covers site access roads, processing-plant foundations, non-processing infrastructure, and an on-site accommodation camp. Boab is fast-tracking pre-wet season site prep so major packages can mobilise in April 2026.

Great Northern Minerals Ltd (ASX: GNM) has announced a significant expansion of its Catalyst Ridge REE–Antimony Project in the Mountain Pass District, California (Figure 1). The move marks a step-change in the Company’s U.S. footprint, adding new ground in one of the world’s most strategic rare earth corridors.

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