Tivan Limited (ASX:TVN)

Tivan Limited announced that SRK Consulting had completed an updated JORC 2012 Mineral Resource Estimate for the Speewah Fluorite Project in Western Australia, materially upgrading the project’s confidence level by shifting most of the resource into the Indicated category following about 14km of stage two drilling completed in October 2026 to support the Definitive Feasibility Study; the updated estimate reports a total Indicated and Inferred Resource of 45.0 million tonnes at 7.8% CaF2 at a 2% cut-off, containing 3.5 million tonnes of CaF2, including a high-grade component of 8.6 million tonnes at 22.3% CaF2 at a 10% cut-off containing 1.9 million tonnes of CaF2, with total tonnage up 4% on the February 2026 estimate while grade and contained fluorite remained broadly similar, and with Indicated tonnes rising 37% to 37.9 million tonnes; Tivan said the upgrade strengthens the geological basis for mine planning, Ore Reserve estimation and project development, with the DFS focused on an open pit mining and processing operation producing acidgrade fluorspar above 97% CaF2 for export, while infill drilling returned strong intercepts such as 76m at 21.6% CaF2 from surface, 61.2m at 18.1% from surface, 59m at 14.9% from 100m, and 39.6m at 18.6% from surface, and the company also highlighted additional exploration upside at Southern Veins and Dingo Vein as it advances toward a final investment decision for what it described as Australia’s first fluorite project.