Tiong Woon Corporation Holding Ltd, an investment holding company, provides integrated services for the oil and gas, petrochemical, infrastructure, and construction sectors. The company operates through Heavy Lift and Haulage, Marine Transportation, and Trading segments. It offers heavy lift and haulage, marine transportation, and inland transportation services; equipment installation services, such as trays and structures; project engineering services for heavy lifting and haulage requirements. In addition, the company leases heavy haulage equipment that consists of prime movers with low beds, self-propelled modular trailers, tow trucks, and trailers for the transportation of heavy process equipment, such as modules and structures.