American Lithium highlights cesium resource at Falchani Lithium deposit

American Lithium (AMLIF) highlights the globally significant cesium resource contained within the Falchani Lithium deposit and announce results of recent optimization work on the processing flowsheet, including the potential recovery of cesium by-products. Cesium is officially recognized as a critical mineral in both the U.S. and Canada due to its rarity, strategic importance, and limited global supply. With the U.S. entirely reliant on imports, Falchani’s scale positions it as one of the world’s largest cesium resources, with potential to strengthen North American supply chains. Test work was completed at the Australian Nuclear Science and Technology Organization laboratories in Sydney, Australia. In parallel, TECMMINE in Lima, Peru, is currently testing newly acquired component equipment for the pilot plant phase, which is expected to commence within a few months.Falchani’s volcanic-style lithium mineralization, with naturally low impurities, supports a straightforward flowsheet that produces high-purity lithium carbonate, meeting battery-grade specifications. Falchani mineralization is enriched in cesium, potassium, and rubidium alongside lithium. Recent test work results demonstrate production of a saleable mixed cesium sulphate producs and high-quality sulphate of potash, with strong recoveries at low additional cost. Additional work is planned to increase the cesium content of the sulfate by-product above 18% Cs. The deposit contains a large-scale cesium resource within the lithium resource base: Measured: 69 Mt at 631 ppm Cs; Indicated: 378 Mt at 1,039 ppm Cs; Inferred: 506 Mt at 778 ppm Cs. Test work highlights and meaningful cost improvements include: Recycling 50% of acid streams maintains recoveries. Counter-current leaching reduces sulfuric acid use to ~240 kg/t acid consumption, nearly 50% lower than outlined in the February 2024 PEA. Additional savings are expected from reduced reagent demand, smaller gypsum waste volumes, and lower tailings costs. Soluble high purity crystalline SOP containing 45% K is produced at low temperatures after the cesium sulphate precipitation.