China’s Huangpu Wenchong Shipbuilding marked a key step on 18 November 2025 as steel cutting began for the nation’s first 41,000m³ ammonia dual-fuel LPG/liquid ammonia carrier. The milestone, completed with Tianjin Southwest Maritime, Lloyd’s Register, and industry partners, set the foundation for the vessel’s keel-laying and signaled China’s growing role in next-generation clean-fuel shipbuilding.
Designed as China’s inaugural domestically built ammonia dual-fuel vessel in this class, the ship incorporates advanced ammonia-powered main engines and an ammonia fuel supply system, aligning with emerging green ammonia supply networks. The design adheres to IMO Tier III and EEDI Phase III, meeting applicable environmental standards.
The carrier measures 179.9 m in length, 30 m in beam, and 18.85 m in depth. Its configuration balances stability and port compatibility, supported by three IMO Type A cargo tanks and two deck tanks, delivering a total capacity of 41,000 m³ at a design temperature down to -50°C. The ship is built to transport LPG and liquid ammonia simultaneously. A low-resistance hull, high-efficiency shaft generators, and energy-saving coatings contribute to operational efficiency.
Project initiation strengthened cooperation between Huangpu Wenchong and Southwest Maritime, while reflecting continued progress in China’s use of new-energy propulsion. The development supports national “dual-carbon” objectives and aligns with broader efforts toward low-carbon shipping.
Huangpu Wenchong noted it would continue developing technologies for small and medium-sized gas carriers and maintain work on new-energy vessels using ammonia, LNG, and methanol, supported by continued collaboration with its partners.
