Tokyo, September 8, 2025 - Kawasaki Heavy Industries, Ltd. announced that in collaboration with MITSUI E&S Co., Ltd., a supplier of ammonia fuel engines and ammonia fuel supply systems, it has been granted Approval in Principle (AiP) from Nippon Kaiji Kyokai (ClassNK) for a LPG/ammonia carrier that can use liquid ammonia as the ship’s fuel.*1
Ammonia is a green fuel*2 that emits no CO2 when burned, and like hydrogen is attracting interest as a next-generation fuel at a time when the International Maritime Organization (IMO) is strengthening restrictions on gas emissions from ships. With regard to the ammonia fuel supply system, safety has been evaluated by a HAZID risk assessment meeting of experts and necessary measures have been taken. When they confirmed the design safety of the carrier to be compliant with ClassNK criteria, the AiP was granted. (....)