King Wan Corporation Limited is engaged in investment holding. The Company operates as an integrated building services company. Its principal activities include provision of mechanical and electrical engineering services for building and construction industry. Its segments include Plumbing and sanitary, which provides plumbing and sanitary services, including the design and installation of water distribution systems and pipe network for sewage and waste water drainage; Electrical, which provides electrical engineering services, including the design and installation of electricity distribution systems, fire protection, alarm systems, communications and security systems, as well as air conditioning and mechanical ventilation systems; Toilet rental, which is engaged in renting and operating of mobile lavatories and other facilities; Investment holdings, which includes the Company's investments in associates and joint ventures, and Others, which consists of other activities.