Altona Rare Earths (LSE:REE) has identified a notable concentration of heavy rare earth elements within fluorspar and gallium mineralisation at its flagship Monte Muambe project in Mozambique. The company reported a heavy-to-total rare earths ratio of around 40%, significantly higher than that found in its existing light rare earth deposit, pointing to the potential for a valuable additional revenue stream.
Management believes this enrichment could enable the development of a high-value heavy rare earth by-product alongside planned gallium production. To assess this opportunity, Altona has initiated further mineralogical and metallurgical studies, as well as expanded assay programmes, with the aim of evaluating recoverability without delaying the current resource estimates for fluorspar and gallium.
The discovery positions Monte Muambe within a competitive range of heavy rare earth grades compared with established projects, including those in Namibia supported by Japanese investment. This adds strategic significance to the asset, particularly given the current dominance of China in global rare earth supply. Altona noted that successfully incorporating heavy rare earth recovery into its processing flowsheet could enhance overall project economics and strengthen its position in ongoing collaboration with U.S. agencies and participants in the North American supply chain.
The Monte Muambe project remains central to the company’s strategy, supported by a long-term mining licence and a focus on accelerating acid-grade fluorspar production while exploring gallium recovery opportunities. The group also retains additional exploration upside through its Sesana copper-silver project in Botswana.
From an investment perspective, the company continues to face financial challenges, including a lack of revenue, ongoing losses, sustained cash outflows, and increasing leverage. However, these concerns are partly offset by strong technical momentum in the share price, which is trading above key moving averages with positive trend indicators. Valuation remains less supportive due to negative earnings and the absence of dividend visibility.
More about Altona Rare Earths
Altona Rare Earths is a London-listed exploration and development company focused on critical raw materials across Africa. Its portfolio includes rare earths, fluorspar, gallium, and base metals, with the Monte Muambe project in Mozambique as its core asset, supported by a long-term mining licence and external development funding. The company is also advancing the Sesana copper-silver project in Botswana, providing additional growth potential within its broader strategy to supply materials essential to clean energy, technology, and defence sectors.
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