• Continued progress on Lazio Project development, including positive ANSTO testwork results
• Completed acquisition of Appian's interest in Gorno Project, with EIA process ongoing
• Group cash balance of A$1.742 million at quarter end

Altamin Ltd (ASX: AZI) reported on the progress of its key projects, Lazio and Gorno, during the March 2025 quarter. For the Lazio Project, the company continued to advance the project's development timeline, with positive results from testwork by ANSTO. The ANSTO testwork demonstrated that a simulated Cesano C1 brine closely matches the actual well brine composition and behaviour, supporting the suitability of the flowsheet for sulphate of potash (SOP) recovery. The testwork also showed the feasibility of producing technical-grade lithium carbonate and boron from the SOP barren liquor, presenting an opportunity to enhance the Lazio economics. Future ANSTO optimising testwork will aim to achieve battery grade lithium carbonate purity. The company also reported that the testwork program with Saskatchewan Research Council is on track for Q2 and will provide inputs for a pre-feasibility level study for SOP and lithium production from geothermal brines. For the Gorno Project, Altamin completed the acquisition of Appian Italy B.V.'s 29.85% interest, and the environmental impact assessment (EIA) process is ongoing, with the EIA Committee site visit conducted on 12 March 2025. The company reported a group cash balance of A$1.742 million as at 31 March 2025.