• Preliminary test yields high-grade concentrate grading over 100,000 g/t Ag (10% silver)
• Trial concentrate to support preliminary evaluation of Tolmer petrology and paragenesis
• ~4,000m follow up drilling expedited for May 2026 to infill high-grade assays, test extensions

Barton Gold Holdings Limited (ASX:BGD, OTCQB:BGDFF, FRA:BGD3) has announced the results of a preliminary analysis of sample mineralisation collected from drilling at its high-grade Tolmer Silver prospect, located at its South Australian Tarcoola Gold Project. The preliminary test has produced a concentrate grading >100,000 g/t Ag (~10% silver) from a simple gravity process, without any grinding, roasting or the use of chemical reagents. Barton has now expedited a ~4,000m RC drilling follow up program, anticipated to begin mid-May 2026, to further develop Tolmer's local geological knowledge, infill data, and test potential extensions indicated by soil assays around numerous drill intercepts exceeding 2,000 gram-metres Ag. Barton has engaged a leading geological consultant to conduct a preliminary evaluation of this Tolmer mineralisation and assist in the design of a detailed metallurgical testwork program. The company notes the above results are from a subsample of prepared materials and are not representative of all Tolmer mineralisation, and comprehensive quantitative metallurgical testwork is required to evaluate potential commercial viability.

Barton is excited by the exceptional preliminary concentration results from Tolmer and the potential to concentrate the silver from a simple, gravity-based process. The company is now accelerating its Tolmer investigation in parallel with programs to upgrade its Tolmer gold and silver Resources.