The scope of work to be carried out by Thiess under this contract includes overburden removal and haulage, coal mining and run of mine rehandling services, equipment maintenance and pit dewatering.

This new contract is in addition to Thiess's existing scope of work for provisioning and maintenance of Coronado's electric shovel and supply of an ultra-class truck fleet.

Coronado CEO Gerry Spindler said the new contract extends its long-standing relationship with Thiess at Curragh North.

"This is the sixth successive contract Thiess has been awarded in a competitive process and is a testament to their focus on safety and ability to achieve production objectives through operational excellence," he said.

"It also provides continuity and stability to Curragh's northern operations while we deliver on our expansion plans."

Located in the metallurgical coal-rich Bowen Basin, Thiess has a long record of service at the Curragh mine, having operated at the project since 2004.

CIMIC Group CEO Michael Wright said Thiess has a consistent record of exceeding its client's expectations at the mine, through a focus on operational excellence and innovation, and an unrelenting commitment to safety culture and outcomes at Curragh.

"This contract extension reflects Thiess' ongoing ability of creating lasting value for its clients," he said.

CIMIC Group Executive Mining and Mineral Processing and Thiess Managing Director Douglas Thompson said the company is delighted to be continuing its partnership with Coronado Resources.

"Thiess has operated at Curragh for more than 15 years," he said.

"Over that time, we've developed a deep understanding of the site and its operations, helping to deliver optimal efficiency, productivity and cost performance. We look forward to continuing this strong record of delivery with the Curragh team."

In addition to this contract, Thiess will continue delivery of its existing scope of works, including the operation and maintenance of the client-owned 1400 tonne electric rope shovel and ultra-class trucking fleet.

CIMIC Group companies Sedgman and UGL provide various operations and maintenance contracts at the Curragh mine.