China State Construction International Holdings Limited, an investment holding company, engages in the construction business for private and public sectors in Hong Kong, Mainland China, Macau, and internationally. It invests in and constructs toll roads and bridges, houses, buildings, hospitals, and schools. The company also undertakes civil engineering projects; and mechanical and electrical engineering works. In addition, it is involved in undertaking foundation engineering works, general contracting and prefabricated construction, and industrial plant reconstruction activities; and investment-driven contracting and other construction related businesseses. Further, the company provides insurance brokerage, project and construction management, subcontracting, project consultancy, and installation repairs and maintenance services; designs, manufactures, and installs curtain walls, aluminum windows, and other related products; sells and distributes construction materials; issues guaranteed notes; holds trademarks; leases plant and machinery; generates and supplies heat and electricity; manufactures building-integrated photovoltaics curtain walls and other related products; and manufactures and sells precast structures. Additionally, it engages in the marine engineering works, and property investment and management activities; and infrastructure operation and investment, thermoelectricity, toll road operation, property development, and facade contracting businesses. The company was founded in 1979 and is headquartered in Wan Chai, Hong Kong. China State Construction International Holdings Limited is a subsidiary of China Overseas Holdings Limited.