China State Construction International Holdings Limited, an investment holding company, engages in the construction business in Hong Kong, Mainland China, Macau, and internationally. It builds public and private housings; buildings for the government and other institutions; commercial and industrial buildings, and hotels; and other building projects. The company also operates as a contractor in civil engineering works comprising general roads and drainage works, site formation, port works/reclamation, water and sewage treatment plants, bridges construction, tunnels, waterworks, and other special-function civil projects for the government. In addition, it is involved in undertaking foundation projects for the housing authority and private property developers; electrical and mechanical works for the government and semi-government bodies; and other subcontracted works, as well as site investigation, concrete production, and pre-casting activities. Further, the company provides insurance brokerage, project and construction management, project consultancy, science and technology, and logistic services; designs, manufactures, and installs curtain walls, aluminum windows, and other related products; sells and distributes construction materials; issues guaranteed notes, as well as leases plant and machinery; holds trademarks; generates and supplies heat and electricity; and manufactures and sells precast structures. Additionally, it engages in the marine engineering works and property investment activities; and infrastructure operation and investment, thermoelectricity, toll road operation, and property development and facade contracting businesses. The company was founded in 1979 and is headquartered in Wanchai, Hong Kong. China State Construction International Holdings Limited is a subsidiary of China Overseas Holdings Limited.