Challenger West Assays Return Grades up to 60g/t Au

Shallow, high-grade mineralisation in floor of existing open pit HIGHLIGHTS 8,065m reverse circulation (RC) Resource upgrade drilling recently completed at Challenger ‘Main', ‘Challenger West' (CW) open pits, and ‘Challenger South-Southwest' (CSSW) and ‘Challenger 3' targets Recent Challenger's ‘Main' assays identified new high-grade mineralisation in open pit walls; new Challenger West assays confirm high-grade mineralisation in the pit's floor, and include: Hole ID Interval Including: CHB0149 7m @ 2.01 g/t Au from 0 metres 1m @ 9.63 g/t Au from 6 metres CHB0150 3m @ 20.6 g/t Au from 13 metres 1m @ 59.5 g/t Au from 15 metres CHB0151 1m @ 12.5 g/t Au from 28 metres CHB0152 1m @ 20.5 g/t Au from 17 metres Assays pending for CSSW and Challenger 3 targets (along strike of ‘Main' and ‘West' pits) Challenger DFS underway targeting a viable, simplified ‘baseline' Stage 1 operation to underwrite restart of CGM and maximise Challenger, Tarcoola, Wudinna and Tolmer development optionality ADELAIDE, AU / ACCESS Newswire / April 21, 2026 / Barton Gold Holdings Limited (ASX:BGD)(OTCQB:BGDFF)(FRA:BGD3) (Barton or Company) is pleased to announce further assay results from recent drilling at its South Australian Challenger Gold Project (Challenger). Challenger is the site of the Company's fully permitted Central Gawler Mill (CGM).