Macmahon Holdings Limited provides surface mining, underground mining and mining support, and civil infrastructure services to mining companies in Australia and Southeast Asia. It operates in three segments: Surface Mining, Underground Mining, and International Mining. The company offers surface mining services, such as bulk and selective mining, mine planning and analysis, drill and blast, crushing and screening, fixed plant maintenance, water management, equipment operation and maintenance, and technology solutions; and underground mining services, including mine development and production, raise and production drilling, cable bolting, shotcreting, remote shaft lining, paste fill, and shaft sinking. It provides mining support services comprising topsoil and overburden stripping, bulk earthworks, road design and construction, mine infrastructure and services, and train loading facilities; water infrastructure, such as dams, creek diversions, flood levies, and drainage structures; revegetation, non-process infrastructure, and rehabilitation monitoring and maintenance; and engineering services, such as shaft lining and maintenance, shaft fit out, ore pass liners, winder refurbishment, emergency egress system, pump stations and rising mains, and site workshops and infrastructure, as well as conveying, crushing, and materials handling. In addition, the company offers advisory operational improvement services, which includes operator coaching and industry skills training, cultural change programs for employees, as well as advisory and assistance services with mine planning, maintenance, and employee engagement; and equipment maintenance and management support services. The company was incorporated in 1963 and is headquartered in Perth, Australia.