The proposed contract will have a 36 month term and has an estimated value of approximately $40million.
ADB is currently operating on site under agreed terms pending finalisation of the contract details, NRW said in a statement.
Production drilling started in January at Isaac Plains coking coal mine in Queensland with operational handover to contractor Golding scheduled for this month.
An optimised mine plan and a low cost mining approach has resulted in a reduction of FOB unit costs by around 35% (compared to prior operations), placing the mine in the second quartile of a margin-adjusted global metallurgical coal cost curve.
The adjacent Isaac Plains East Project will benefit from operational and capital synergies from acquired assets which include a Bucyrus 1370W dragline, coal handling facility, train load out and rail spur facilities, office facilities and workshops, Stanmore Coal said in its latest quarterly statement.
