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Assay Results Confirm High Grade Mineralisation
Altona Rare Earths PLC has announced final assay results from its 2025 drilling campaign at Monte Muambe, confirming high-grade, near-surface fluorspar and gallium mineralization. The company reported a record fluorspar intercept of 30 metres at 42.5% CaF₂, with a weighted average grade of 30% CaF₂ across all significant intercepts, aligning with commercial mining benchmarks. Gallium mineralization was encountered in consistent intercepts averaging 18 metres, with a weighted average grade of 63 g/t Ga₂O₃, exceeding expectations. Metallurgical testing for gallium recovery from fluorspar tailings is now underway, and the company is focused on delivering a Mineral Resource Estimate. Disclaimer*
About this update from Altona Rare Earths Plc
[{"type":"text","content":"\n\n24 March 2026\n \n \nALTONA RARE EARTHS PLC\n(\"Altona\" or \"the Company\")\n \nFinal Assay Results Confirm High-Grade, Near-Surface Fluorspar and Gallium Mineralisation at Monte Muambe\n \nAltona (LSE: REE), a resource exploration and development company focused on critical raw materials in Africa, is pleased to announce the receipt of all outstanding assay results from its 2025 drilling campaign at Monte Muambe.\n \nHighlights\n \n· All assays received: Final results from the 2025 drilling programme are now in hand, clearing the path for the delivery of the Mineral Resource Estimate (\"MRE\").\n· Record fluorspar intercept: Hole MM156 returned 30 metres at 42.5% CaF₂ from surface, representing the highest grade × intercept length recorded to date at the Monte Muambe project.\n· Consistent, commercial-grade fluorspar: The weighted average grade of all significant fluorspar intercepts is 30% CaF₂, aligning with industry benchmarks for commercially viable open-pit mining operations (typically 20-40% CaF₂).\n· Gallium results exceed expectations: Gallium mineralisation was encountered over wide, consistent intercepts up to 50 metres (averaging 18 metres), with a weighted average grade of 63 g/t Ga₂O₃. These results surpassed internal pre-drilling expectations.\n· Gallium metallurgical testing underway: A gallium metallurgical testing programme was initiated last week to assess recovery potential from fluorspar tailings, an essential step toward evaluating commercial viability.\n \nReceived results correspond to samples from diamond drilling and reverse circulation drilling holes at the Fluorite Zone, Southern Extension, Kudu and Python.\n \nIt is noteworthy that the 2025 drilling campaign covered only about 40% surface area of soil gallium and fluorspar anomalies. The remaining 60% has not been drilled yet, leaving significant scope for new mineralized zones identification and definition through additional drilling.\n \nIndividual sample grades reach up to 93.11% CaF2 and up to 149 g/t Ga2O3.\n \nSignificant intercepts for fluorspar and gallium are detailed in the tables below.\n \nFluorspar Results Meet Expectations\n \nThe weighted average of the fluorspar intercepts reported ...