Jiangsu Rainbow Heavy Industries Co., Ltd. operates in equipment manufacturing and environmental protection in China. It runs two segments: Ship and Offshore Engineering Equipment, and Material Lifting and Handling Equipment. The first covers special transport vessels, offshore vessels, offshore wind power foundations, LNG fuel tanks, ship hatch covers, and tied bridges. The second offers industrial lifting, handling, loading/unloading, and bulk material conveying solutions, including equipment for shipyards, yards, factories, marine engineering, container ports, and multifunctional high-efficiency material handling machines. The company also handles and transports ore, coal, and other bulk materials in mines, yards, and ports, engages in hazardous waste, medical waste, and sludge treatment, and operates port terminals. Its products are sold under the GENMA and KOCH brands. Founded in 2003, it is headquartered in Nantong, China.