Jiangsu Rainbow Heavy Industries Co., Ltd. Jiangsu Rainbow Heavy Industries Co., Ltd. (002483.SZ) manufactures and supplies heavy industrial equipment focused on material lifting and handling solutions; marine engineering equipment; ships and ancillary products; and environmental protection services including hazardous waste, medical waste, and sludge treatment. The company operates under two primary brands, GENMA for port cranes, container handling equipment, shipyard machinery, and bulk material systems, and KOCH for bulk material handling solutions serving mining storage yards and industrial sectors; additional offerings encompass offshore wind power installation platforms, operation and maintenance vessels, wind power steel structures, LNG tanks, hatch covers, lashing bridges, and petrochemical equipment. Jiangsu Rainbow Heavy Industries Co., Ltd. maintains manufacturing bases, port assembly facilities, and global R&D centers, with products and services distributed across more than 50 countries and regions; it also provides full lifecycle services covering installation, maintenance, upgrades, and spare parts supply. Founded in 2003 and headquartered in Nantong Economic and Technological Development Zone, Jiangsu Province, China, the company has pursued strategic expansions including the 2019 acquisition of KOCH with subsequent 2023 integration of FLSmidth's bulk material and mining equipment divisions, the 2022 acquisition of KALMAR's heavy crane business integrating core technical teams, and a 2025 global brand strategy upgrade transitioning certain lines to GENMA while enhancing KOCH synergies.