China's Rainbowco Expands Offshore Wind Foundation Manufacturing Capabilities on Global Delivery Track Record

## Rainbowco Bolsters Offshore Wind Foundation Capacity Amid Growing Global Demand Nantong Rainbow Offshore & Engineering Equipment Co., Ltd. (ROC), a wholly owned subsidiary of Jiangsu Rainbow Heavy Industries Co., Ltd. (RHI, SZSE: 002483), is continuing to expand its manufacturing capabilities in the offshore wind foundation segment, according to a company announcement issued via PR Newswire on 7 July 2026. ROC is positioning itself as a key supplier in the global offshore wind supply chain, drawing on its established track record of delivering large-scale marine engineering equipment to international markets. The Qidong, China-based manufacturer has been building on its parent company's industrial engineering heritage to scale production capacity for monopiles, jackets, and other substructure components critical to offshore wind farm development. ### Strategic Significance The move reflects broader trends reshaping the offshore wind supply chain. As project pipelines expand across Europe, Asia-Pacific, and North America, developers and contractors are increasingly looking to Chinese heavy fabricators to meet surging demand for foundation structures — components that represent a significant portion of overall project capital expenditure. RHI's listed status on the Shenzhen Stock Exchange (SZSE: 002483) underscores the financial backing available to support capacity investment, while ROC's operational base in Nantong — a well-established hub for offshore and marine engineering manufacturing in Jiangsu Province — provides logistical advantages for large-component export. ### Industry Context The offshore wind foundation manufacturing sector has faced persistent supply chain constraints globally, with demand for monopiles and transition pieces outpacing available fabrication capacity in European yards. Chinese manufacturers have increasingly stepped in to fill this gap, with several major European developers sourcing foundations from Chinese suppliers in recent project cycles. ROC's continued investment in this segment signals confidence that international demand will remain robust, particularly as markets in Southeast Asia and the United States build out their own offshore wind programmes. Further details on specific capacity expansions, production targets, or new contract awards were not disclosed in the announcement.