• Tunkillia Gold Project: Mineral Resources Estimate (MRE) upgrade drilling begins, targeting JORC Ore Reserves by 2026
• Central Gawler Mill: Feasibility study underway for low-capex restart, targeting production by end of 2026
• Tarcoola Gold Project: New high-grade silver and gold discoveries extend mineralization

Barton Gold Holdings Ltd has reported significant progress across its South Australian gold projects during the September 2025 quarter. At the Tunkillia Gold Project, the company has commenced upgrade drilling on the high-value 'Stage 1' and 'Stage 2' optimised open pit areas, aiming to upgrade the entirety of these areas to JORC (2012) 'Measured' and 'Indicated' classification. This will support the conversion of this mineralisation to JORC (2012) 'Ore Reserves' classification, along with a pre-feasibility study, by the end of 2026. Barton has also commenced a Definitive Feasibility Study (DFS) for a phased restart of production at its fully permitted Central Gawler Mill (CGM), targeting initial 'Stage 1' operations by the end of 2026. The DFS will evaluate reprocessing higher-grade tailings storage facility materials in 'Phase 1', followed by introducing high-grade (+3 g/t Au) fresh ore in 'Phase 2'. At the Tarcoola Gold Project, Barton reported further high-grade assays extending the 'western silver zone' at the Tolmer prospect, including up to 2,240 g/t Ag and 51.2 g/t Au. Soil sampling also indicated potential for extensions of the mineralization. The company also completed the acquisition of the Wudinna Gold Project, which, combined with its other projects, has grown Barton's total JORC Gold Mineral Resources to 2.14Moz Au. During the quarter, Barton raised $15 million in a placement led by Franklin Templeton, and joined the S&P Global ASX 'All Ordinaries' Index.

Barton is focused on an expedited restart of operations at the Central Gawler Mill, targeting initial 'Stage 1' production by the end of 2026. The company is also targeting conversion of all open pit mineralization at the Tunkillia Gold Project to JORC (2012) Ore Reserves, a pre-feasibility study, and submission of a Mining Lease application before the end of 2026.