Tivan Upgrades Speewah Fluorite Project Mineral Resource to 45.0Mt at 7.8% CaF2

Mukul

03 November 2026 10:15 AM AEDT

Tivan Upgrades Speewah Fluorite Project Mineral Resource to 45.0Mt at 7.8% CaF2

Image Source: Krish Capital Pty Ltd

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Tivan Limited (ASX:TVN) has completed a Mineral Resource Estimate update for its Speewah Fluorite Project, with SRK Consulting confirming a JORC (2012) compliant Indicated and Inferred Resource of 45.0 million tonnes at 7.8% CaF2 at a 2% CaF2 cut-off grade, containing 3.5 million tonnes of CaF2, following completion of a stage two drilling program in October 2026 that delivered approximately 14 kilometres of drilling.

Key Points

Speewah Fluorite Project hosts a JORC (2012) compliant Indicated and Inferred Resource of 45.0 million tonnes at 7.8% CaF2 containing 3.5 million tonnes CaF2 at a 2% CaF2 cut-off grade
The MRE update delivered a 4% increase in total resource tonnage compared to the February 2026 MRE, with grade and contained CaF2 remaining broadly consistent
The majority of the Mineral Resource has been upgraded to the Indicated category, reflecting increased confidence in geological continuity, grade distribution and tonnage based on closer-spaced drilling
A high-grade component of 8.6 million tonnes at 22.3% CaF2 at a 10% CaF2 cut-off grade containing 1.9 million tonnes CaF2 is included in the updated MRE
The upgrade to Indicated Resources is required for inclusion in the estimation of Ore Reserves and supports mine planning and production scheduling for the Detailed Feasibility Study

Stage Two Drilling Program Results

Stage Two of the drilling program was undertaken between May and October 2026, with 135 drill holes completed for a total of 14,025 metres drilled. The program focused on infill drilling in support of the Mineral Resource estimate update and a maiden Ore Reserve estimate, metallurgical drilling, exploration drilling at vein targets outside the existing resource, and geotechnical drilling. Notable assay results from infill drilling included 76 metres at 21.6% CaF2 from 0 metres, including 22 metres at 39.0% CaF2, and 61.2 metres at 18.1% CaF2 from 0 metres, including 19 metres at 32.4% CaF2. Strike Drilling and West Core Drilling were engaged to undertake the drilling program.

Speewah Fluorite Project Location and Joint Venture

The Speewah Fluorite Project is located 100 kilometres south of the port of Wyndham and 110 kilometres south-west of Kununurra in the Kimberley region of north-east Western Australia. Tivan is developing the project in joint venture with Sumitomo Corporation and Japan Organization for Metals and Energy Security (JOGMEC), with ETFS Capital Limited also a strategic partner. The project is focused on a mining and processing operation producing acid-grade fluorspar containing greater than 97% CaF2 for export into global markets. A Feasibility Study has been completed, with a Definitive Feasibility Study now progressing.

Detailed Feasibility Study and Exploration Potential

The MRE update supports updated mine planning and production scheduling for the Detailed Feasibility Study. Executive Chairman Grant Wilson stated that the mining plan is now based on 100% Indicated category resources, which will enable optimisation of Ore Reserves ahead of a Final Investment Decision. The filing also notes that potential remains to extend known fluorite mineralisation along strike and at depth, with several mineralised zones remaining open beyond current MRE boundaries. Additional resource growth opportunities exist at the Southern Veins and Dingo Vein areas within the broader Speewah Fluorite Project.

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