Contiocean Environment Tech Group Co., Ltd. (2613.HK) develops and commercializes maritime environmental protection equipment and systems primarily in China, offering marine exhaust gas cleaning systems to reduce sulfur emissions from ships; marine energy-saving devices to lower fuel consumption and carbon emissions; marine clean-energy supply systems including containerized nitrogen generation and methanol fuel supply systems to enable utilization of alternative fuels; and maritime services such as ship accommodation interior design and construction, container ship and pure car and truck carrier lashing gears, and ship lashing fittings. The company, founded in 2017 and headquartered at Shanghai International Fortune Center in Shanghai, China, operates through 11 subsidiaries in China and overseas, serving shipowners, ship management companies, and shipbuilders across Asia, Europe, the Americas, and the Middle East. In January 2025, Contiocean listed on the Hong Kong Stock Exchange's Main Board via an IPO raising approximately HKD 312 million at HKD 31.80 per share for research and development, potential mergers and acquisitions, production facility leasing, international service centers, and working capital; in August 2025, it inaugurated a Japan office in Imabari to expand market presence; and it continues developing new products like methanol fuel systems while ranking third among China-based and fourth globally in ship exhaust gas cleaning systems by completed and on-hand orders as of late 2023.