Nantong Rainbow Offshore & Engineering Equipments Co., Ltd. (ROC in short) is a wholly-owned subsidiary of Jiangsu Rainbow Heavy Industries Co., Ltd (listed in Shenzhen Stock Exchange with Stock Code 002483, RHI in short) located in Qidong Marine industry park.

ROC concentrates on design and construction of offshore wind power advanced equipment, offshore wind power supporting equipment, petrochemical equipment and heavy steel structure, and is dedicated to become a supplier of professional and international advanced equipment.