On Nov. 21st, 2025, Nantong Rainbow Offshore & Engineering Equipment Co., Ltd. (ROC), a wholly-owned subsidiary of Jiangsu Rainbow Heavy Industries, held a grand steel cutting ceremony in Qidong for ESSBERGER 13,000 DWT duplex stainless steel chemical tanker.
Attendees included shipowners Mrs. Patricia von Rantzau and Ms. Caroline von Rantzau, Johan Isaksen (Managing Director and GM), Safa Ismail and Preben Rasmussen (Managing director of Link Marine), Ge Yilong (General Manager of DNV Nantong Station), Martin Wu (President of RAINBOWCO), Shi Xiaoyue (Executive Director of ROC), and Shao Xiwu (General Manager of ROC), among other dignitaries, who collectively witnessed this milestone.
Designed by FKAB and classed by DNV, the vessel is being constructed at ROC’s indoor slipway. It holds Ice Class 1A certification and features 18 independent cargo tanks, with overall performance reaching world-leading levels. Especially in terms of environmental protection and emission reduction, it is equipped with advanced technologies such as SCR, methanol-ready system，WAPS ready, 6,600V high-voltage shore power, and a shaft generator, meeting Tier III emission standards.
ESSBERGER is a centenary German shipping group, holding a leading position in the chemical transportation sector with a global business footprint. ROC has successfully secured the series order for the 13,000 DWT duplex stainless steel chemical tankers, demonstrating ESSBERGER’s high recognition of ROC’s construction capabilities.At the ceremony, RAINBOWCO’s president Mr. Martin Wu delivered a speech. He emphasized that ESSBERGER is a key partner of RAINBOWCO group, and the chemical tanker project is a benchmark for in-depth cooperation between the two parties. He pledged to ensure flawless execution and strive to deliver a reliable, high-quality, and satisfactory vessel to the shipowner. Shipowner Ms. Caroline von Rantzau commended ROC’s professionalism and expressed optimism about the project’s contribution to maritime economic growth.