Macmahon Holdings' (ASX:MAH) unit Macmahon Underground executed a contract for underground mining services at the Mt Marion lithium operation, valued at AU$355 million for an initial period of three years with an option to extend for a further year, according to a Wednesday Australian bourse filing.

The company said the scope of works includes all underground development and production mining operations at Mt Marion, located 70 kilometers south of Kalgoorlie in Western Australia, and jointly owned 50-50 by Mineral Resources (ASX:MIN) and Jiangxi Ganfeng Lithium.