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Subika is part of Newmont's larger Ahafo complex, about 310km from Ghana's capital Accra.
The contract became effective from January 1.
Under the scope of the contract AUMS will provide underground development and production activities, diamond drilling and associated support services.
Under the contract terms Newmont will take over the fleet of underground equipment at the project and be responsible for the acquisition of additional fleet as required.
AUMS first started at Subika in mid-2017.
Perenti managing director and chief executive officer Mark Norwell said the contract expanded Perenti's tenure in Ghana and furthered its relationship with Newmont.
"We are very pleased that we will continue to deliver value and certainly to Newmont and our other stakeholders in Ghana and beyond," he said.
Perenti president Paul Muller said Ausdrill first started working in Ghana in 1991.
"With this 60-month contract, Perenti through its subsidiaries, will have accumulated nearly 40 years of in-country expertise with a strong track record of prioritising local procurement, training and employment opportunities across a wide range of local and regional Ghanaian stakeholders," he said.
