Macmahon Holdings Limited provides surface mining, underground mining and mining support, and civil infrastructure services to mining companies in Australia and Southeast Asia. The company operates in three segments: Surface Mining, Underground Mining, and International Mining. Its surface mining services include bulk and selective mining, mine planning and analysis, drill and blast, crushing and screening, fixed plant maintenance, water management, and equipment operation and maintenance. The company also provides underground mining services, including mine development and production, raise and production drilling, cable bolting, shotcreting, remote shaft lining, paste fill, and shaft sinking. In addition, it offers 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, as well as rehabilitation monitoring and maintenance; and engineering services comprising 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. Further, the company provides equipment maintenance and management support services; and advisory operational improvement services, which include Operator coaching and industry skills training, and cultural change programs for employees, as well as advisory and assistance services with mine planning, maintenance, and employee engagement. Macmahon Holdings Limited was incorporated in 1963 and is headquartered in Perth, Australia.