• New assays infill northern end of Tunkillia S1 'Starter Pit' mineralisation with multiple shallow higher-grade intersections
• Tunkillia 'S1' and 'S2' pits modelled to produce $1.3 billion operating profit in the first 2.5 years of operations
• Balance of Phase 1 infill drilling assays expected by January 2026, with updated JORC (2012) Mineral Resource Estimate by March 2026

Barton Gold Holdings Limited (ASX:BGD) is pleased to announce further assays from recent drilling at its South Australian Tunkillia Gold Project. These assays continue to infill the shallow, northern portion of the S1 'Starter Pit' with shallow, higher-grade intersections, and indicate potential refinement to modelling where vertical zones of mineralisation may intersect the interpreted base of the oxide and transitional zones. The Tunkillia 'S1' and 'S2' pits are modelled to produce 365,000 ounces gold, 923,000 ounces silver, and $1.3 billion operating free cash during the first 2.5 years of operations, assuming A$5,000 and A$50 gold and silver prices. This operating profile would pay back Tunkillia's entire development cost more than 3x over during this period. The new assay results follow recently reported assays from the highest value portion of the 'S1' pit area, which included several broad high-grade intersections. Barton expects the balance of Phase 1 infill drilling assays by January 2026 and is targeting the conversion of Tunkillia's 'S1' and 'S2' optimised open pit mineralisation to JORC 'Measured' and 'Indicated' categories by March 2026.

Tunkillia's 'S1' and 'S2' pits are modelled to yield 365,000 ounces gold, 923,000 ounces silver, and A$1.3 billion operating cash during the first 2.5 years of operations, assuming A$5,000 and A$50 gold and silver prices.