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.