Mitsui O.S.K Lines, Ltd. (MOL), MOL Drybulk, Ltd., Onomichi Dockyard Co., Ltd., Kawasaki Heavy Industries, Ltd. (Kawasaki) and Japan Engine Corporation (J-ENG) have been granted Approval in Principle (AiP) of parcel layout concept from Nippon Kaiji Kyokai (ClassNK) for hydrogen-powered multi-purpose vessel.