Jiangsu Rainbow Heavy Industries (RHI, 江苏润邦重工股份有限公司) is a company that designs, manufactures, and sells heavy equipment. The company operates through two segments: high-end equipment manufacturing and environmental protection. The high-end equipment manufacturing segment includes design, research and development, manufacturing, sales, and service for material handling equipment, offshore equipment, and offshore engineering equipment. The environmental protection segment offers industrial wastewater treatment, sludge treatment, hazardous solid waste disposal, and other solutions.