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 three segments: Heavy Lift and Haulage, Marine Transportation, and Trading. 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; maintenance and repair services; and wall tie installation, foundation anchor, and jacking up services. The company also leases heavy haulage equipment that consists of prime movers, low beds, self-propelled modular trailers, tow trucks, and trailers for the transportation of heavy process equipment, such as modules and structures; supplies various models of tower cranes for sale and rent; and refurbishes, delivers, maintains, jack downs, dismantles, and erects tower cranes. In addition, it provides tug and barge services for various sea transportation projects; and distributes and trades in new and used crawler, mobile, and tower cranes. Further, the company sells and hires cranes and transport; and sells, services, and leases equipment. Additionally, it provides mechanical and infrastructure engineering, structural work, freight forwarding, and logistics related services. As of June 30, 2022, the company had a fleet of 531 cranes and tower cranes and 280 haulage assets; and 7 tugboats and 8 barges. It operates in Singapore, Brunei, the Middle East, India, Malaysia, Thailand, Indonesia, China, Bangladesh, Myanmar, the Philippines, Sri Lanka, and Vietnam. The company was founded in 1978 and is headquartered in Singapore.