The contract extension is worth A$850 million over five years.

MACA will continue to provide a comprehensive range of mining services, including load and haul, drill and blast, crushing and screening, as well as vehicle maintenance.

"We are excited to embark on this extended partnership with Gruyere JV, which is a testament to the hard work and dedication of our team, who have consistently delivered high-quality services to date. This contract extension further solidifies our long-standing partnership with Gruyere JV, " MACA CEO and Thiess Group executive Australia west David Greig said.

"MACA remains committed to providing innovative mining solutions that aligns with our clients evolving needs. We are excited to continue our collaboration with Gruyere JV in their ongoing sustainability initiatives."

As part of the contract extension, MACA will continue to work closely with the traditional owners of the land, Yilka, to ensure a collaborative approach to mining operations.

"Gold Fields Australia is pleased that a tier one business partner like MACA will continue supporting our Gruyere JV gold mine ensuring a continuity of service and the relationships we have built through all aspects of our businesses - not just at an operational level," Gold Fields Australia executive vice president Stuart Mathews said.

MACA was acquired by contracting giant Thiess last year.

Gold Road managing director Duncan Gibbs welcomed the increased capabilities Thiess could bring to Gruyere.

"This contract extension provides even greater confidence in the ongoing sustainability of production at Gruyere to the benefit of all stakeholders," he said.

Gruyere is a circa 350,000 ounce per annum open pit gold producer.