High-Grade Gold Intersections at Side Well Raise Stakes for Great Boulder’s Resource Update

Accelerated Drilling Milestone

Great Boulder Resources Ltd has marked its busiest quarter ever at the Side Well Gold Project, completing an unprecedented 26,000 metres of drilling during the September 2025 period. This surge in field activity underscores the company’s commitment to rapidly advancing resource definition and exploration across its flagship asset in Western Australia’s Murchison region.

High-Grade Gold Intersections Bolster Prospects

The drilling campaign delivered standout results, most notably at the Eaglehawk prospect where hole 25EHRC003 intersected an extraordinary 6 metres grading 121 grams per tonne of gold, including a 2-metre section assaying 342 g/t. Such exceptional grades highlight the potential for high-value zones within the broader mineralised system.

Ironbark also saw significant resource extensions, with multiple intersections confirming the continuity of high-grade mineralisation over a 180-metre strike length to the south. Similarly, Side Well South drilling defined two broad mineralised zones extending 300 to 400 metres along strike, reinforcing the project’s scale and growth potential.

Strategic Capital Raise to Fuel Growth

To support this accelerated exploration push, Great Boulder completed a $5 million placement led by Tribeca Investment Partners. The placement was priced at 6.75 cents per share, closely aligned with the prevailing market price, and will fund ongoing drilling and target refinement through the December quarter and into 2026.

Expanding the Exploration Footprint

Beyond resource definition, the company initiated regional exploration programs targeting new prospects identified by a recent induced polarization geophysical survey. These targets, located north of Eaglehawk and Ironbark within prospective greenstone corridors, represent promising opportunities to deliver the next 500,000 ounces of gold discoveries.

Meanwhile, the divestment of the Whiteheads project to Hastings Technology Metals Ltd was completed in August, allowing Great Boulder to focus its resources on advancing the Side Well and associated projects.

Financial Position and Outlook

Great Boulder ended the quarter with a strong cash position of A$16.26 million and no debt, providing a solid financial foundation for its exploration ambitions. With multiple assay results pending and resource updates anticipated, the company is well positioned to continue delivering newsflow and value creation in the coming months.