CIMIC Group Limited provides construction, mining, mineral processing, engineering, and operation and maintenance services to the infrastructure, resource, and property markets. The company operates through Construction, Public Private Partnerships, Mining & Mineral Processing, Engineering, Services, and Commercial & Residential segments. It constructs various infrastructure projects, including roads, railways, tunnels, airports, buildings, social infrastructures, water, and energy and resources facilities. The company also offers design and construction of mine infrastructure, construction, operation and maintenance of processing facilities, topsoil stripping, drill and blast, excavation, processing, rehabilitation, and mine closure services. It has operations in Australia, Asia, the Middle East, the Americas, and Africa. The company was formerly known as Leighton Holdings Limited and changed its name to CIMIC Group Limited in April 2015. The company was founded in 1899 and is based in North Sydney, Australia. CIMIC Group Limited is a subsidiary of HOCHTIEF Australia Holdings Limited.