CIMIC Group Limited provides construction, mining, mineral processing, engineering, concession, 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, Commercial & Residential, and HLG segments. It constructs roads, rails, tunnels, airports, buildings, and social infrastructure projects, as well as water, energy, and resources facilities; oil and gas structures; and renewable energy infrastructure projects, such as utility-scale wind, geothermal energy, and waste-to-power installations. The company also provides end-to-end engineering, construction, and maintenance services across the rail and transport, communications and technology systems, oil and gas, power and resource, water, and defense markets, as well as contract mining services; and designs, constructs, and operates mineral processing plants and related mine site infrastructure. In addition, it offers operation, maintenance, and facilities and asset management services, as well as telecommunication and ICT solutions to industrial and commercial clients, and government agencies in water, energy, communications, infrastructure, and environmental sectors; and develops and invests in infrastructure projects. Further, the company provides commercial, residential and mixed-use property development 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 1949 and is headquartered in North Sydney, Australia. CIMIC Group Limited is a subsidiary of HOCHTIEF Australia Holdings Limited.