PRESS RELEASE: Great Divide Mining Upgrades Processing Plant Performance

Latest Press Release

Great Divide Mining Ltd (ASX: GDM) today announced a suite of successful electrical, mechanical, and process control upgrades to its Challenger mine processing plant—part of the company’s ongoing focus on operational excellence and production reliability.

Enhancements include electrical control system modernisation, improved sensor integration across the crushing circuit, and mechanical optimisations to reduce potential future down-time, ensure sustainable levels of production in the longer term and enhance operator safety and working environment.

GDM Chief Executive Officer, Justin Haines, said the upgrades have already translated into improved plant stability and performance.

“We’ve now got a plant that will run reliably all day, every day—and that’s the foundation for a reliable revenue stream,” Haines said.

“These upgrades may not be headline-grabbing, but they’re the kind that materially lift productivity while lowering operating costs and risk. It’s about building confidence into every ton.”

“This plant hadn’t been operated in over 8 years,” he went on, “seals can perish in the sun, lubricant can dry out in bearings causing then to run hot.”

“It’s all the little things that add up. It’s the crawl, walk run strategy,” said Haines.

“The first pour is important, but GDM isn’t planning to just pour first gold and pause,” Haines went on, “we’re aiming for first pour plus an on-going sustainable operation – so long as its commercially sensible at initial rates.”

With the plant operating under controlled conditions and output metrics strengthening, the company is now well positioned to focus on incremental throughput increases, backed by ongoing processing trials and feed optimisation.

GDM remains committed to methodical, staged development as it progresses toward consistent, cash-flow-positive production.

“As a gold producer, GDM understands the importance of the numbers around production, but still,” he smiles, “I just can’t wait for that first Gold Pour!”

ENDS

Media Contacts:

Name: John KochanskiCompany: Great Divide MiningEmail: [email protected]Phone: 0411831122

Attachments:

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June 27, 2025/by Reland Pigte

About Great Divide Mining

For further information: Justin Haines, CEO e [email protected] m +61 (0)418 876 420 Great Divide Mining Ltd (ASX: GDM) Great Divide Mining is an Australian Gold, Antimony and critical metals miner, explorer and developer with five projects across 17 tenements (including two in application). GDM’s focus is on operating producing assets within areas of historical mining and past exploration with nearby infrastructure, thus enabling rapid development. Through a staged exploration and development programme, GDM intends to generate cash flow from its initial projects to support further exploration across its portfolio of highly prospective tenements.

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