Ammonia-fuelled gas carrier design jointly developed by MOL, Tsuneishi and MES


An ammonia fuelled gas carrier design which has been jointly developed by Mitsui O.S.K. Lines, Ltd., Tsuneishi Shipbuilding Co., Ltd., and Mitsui E&S Shipbuilding Co., Ltd. has received Approval in Principle from classification society ClassNK.

The vessel uses some of its ammonia cargo as fuel and is targeting to achieve net zero CO2 emissions while underway. ClassNK carried out the review on jointly developed design of the ammonia fuelled medium size gas carrier in line with Part C of its guidelines, and examining the risk assessment through HAZID. Upon confirming it complies with the prescribed requirements, ClassNK issued the AiP.

Speaking on the occasion, Mr. Ken Furuya, Executive Officer, General Manager of Sales Dept., Mitsui E&S Shipbuilding said: ”We, Mitsui O.S.K. Lines, Tsuneishi Shipbuilding and Mitsui E&S Shipbuilding, would like to express our appreciation to ClassNK and Lloyd’s Register for the support and cooperation to this joint development project.

“This AiP is an important milestone for us. We will continue to make an effort to complete this project successfully. Anticipating an increase in the need for ammonia as a marine fuel and greater demand for transporting it, the three companies are committed to playing a role in society’s overall decarbonization efforts by providing clean ocean transport solutions with the zero emission ocean-going vessels.”

Mr. Masaki Matsunaga, Corporate Officer, Director of Plan Approval and Technical Solution Division, ClassNK said: “ClassNK is honoured to have had the opportunity to be involved as a certification body in this concrete effort toward decarbonization through close collaboration among MOL, Tsuneishi Shipbuidling, and Mitsui E&S Shipbuilding, and has issued the AiP as a milestone. For the project’s target to achieve net zero CO2 emissions while underway, we will continue to provide necessary support through its technical expertise.”