AECOM Technology said it has received a design contract from Rio Tinto Coal Australia for its Kestrel mine in Queensland.

Under the $12m contract, AECOM will carry out the remaining work required for the surface infrastructure of the Kestrel mine which produces high-quality coking coal and thermal coal for export.

The extension will provide new underground and surface infrastructure, including new mine access and conveyor drifts to surface, new coal-clearance systems, overland conveying, washplant upgrades, new surface facilities and backbone infrastructure.

The mine uses longwall extraction methods that produce higher resource-recovery rates, use lower volumes of roof-support materials and offer increased roof protection for workers than other mining methods.

The contract is part of the company’s Kestrel Mine extension project in Queensland’s Bowen Basin.

AECOM also delivered a feasibility study and detailed engineering services for the project.