PRESS RELEASE: EOFY REPORT: GDM DELIVERS ACROSS ITS FIVE-PROJECT PORTFOLIO

Great Divide Mining Limited (ASX:GDM) has capped off FY2026 with strong progress across its portfolio of gold, antimony and critical minerals projects, highlighted by the successful transition of the Challenger Gold Mine from development to commercial production.

Challenger Gold Mine – Now in Commercial Production
• First operating revenue received from commercial gold production.
• Commercial gold concentrate production commenced following successful plant commissioning.
• Regular concentrate shipments are now underway under a 12-month international offtake agreement.
• The Challenger processing plant continued its staged production ramp-up.

Coonambula Antimony-Gold Project
• Approximately 4,100 metres of diamond drilling was completed across 41 holes.
• Drilling confirmed broad gold mineralisation together with high-grade antimony, silver and gold zones.
• The project continues to advance toward a maiden Mineral Resource Estimate.

Yellow Jack Gold Project
• Mining Lease preparation and project development planning progressed.

Devils Mountain Project
• Geological evaluation and drill-target generation progressed

Cape Project
• Target assessment and exploration planning continued

“In less than three years from listing, Great Divide Mining has progressed from explorer to gold producer and revenue generator,” said Great Divide Mining Chief Executive Officer Justin Haines.

“That achievement reflects the disciplined execution of our brownfields development strategy and the commitment of our team.”

“FY2026 was about delivery. FY2027 is about building on that foundation—strengthening Challenger as a reliable producing asset while continuing to unlock value across the broader GDM portfolio, ” said Haines.

“FY2026 has been a defining year for GDM.” said Haines.

ENDS