World’s First Ship-to-Ship Ammonia Bunkering to an Ammonia-Fueled Vessel

NYK Line, with Japan Marine United Corporation, Nihon Shipyard Co., Ltd., Mitsubishi Gas Chemical Company, Inc., and Kokuka Sangyo Co., Ltd., has completed the world’s first ship-to-ship (STS) ammonia bunkering operation to an ammonia-fueled vessel on September 17. At a quay within Japan Marine United Corporation’s Ariake Shipyard, ammonia fuel was transferred from the ammonia carrier Shoei Maru* via the STS method** to an ammonia-fueled medium gas carrier (AFMGC)*** scheduled for delivery in November 2026. The operation was conducted in preparation for sea trials of the AFMGC using fuel ammonia. This achievement represents an important initiative that has put into practice an operation essential for the future practical deployment of ammonia-fueled vessels.