• Completed acquisition of Peak Hill Gold Project from Westgold Resources.
• Continued drilling at Side Well with promising results.
• Well-funded with a cash balance of $18.3 million.

Great Boulder Resources Ltd has made significant progress in the June quarter, highlighted by the acquisition of the Peak Hill Gold Project from Westgold Resources. This acquisition positions the company to rapidly advance towards gold production, with Westgold becoming a 19.9% shareholder and key infrastructure partner. Drilling at Side Well has continued to demonstrate the potential of the Mulga Bill - Eaglehawk area, with results indicating the deposit remains open in all directions. The company is also progressing negotiations for a Mining Agreement for the Ironbark deposit. The Peak Hill acquisition was completed on June 30, 2026, with a resource of 9.4Mt @ 1.6g/t Au for 481,000oz. Great Boulder plans to complete a minimum of 40,000m of drilling by the end of the calendar year and begin pre-feasibility studies in early 2027. The company remains well-funded with a cash balance of $18.3 million.

The company plans to update the Peak Hill resource inventory by the end of the year and commence pre-feasibility studies in early 2027. Continued drilling at Side Well and negotiations for a Mining Agreement for the Ironbark deposit are ongoing.