MITSUI E&S has successfully commercialized large ammonia-fueled marine engines, becoming Japan’s first manufacturer to achieve this. In February 2026, it conducted successful land-based tests of its ammonia dual fuel engine, verifying compliance with IMO’s NOx emissions regulations. The company plans to expand facilities to meet growing demand for sustainable fuel alternatives.
ClassNK has granted Approval in Principle (AiP) for an ammonia-fueled LPG/NH3 carrier, a collaboration between Kawasaki Heavy Industries and MITSUI E&S. This certification confirms the vessel’s compliance with regulatory and safety standards, marking a significant advancement in the maritime industry’s shift towards zero-carbon fuels like ammonia.
MITSUI E&S has started testing the world’s first commercial, two-stroke, dual-fuel ammonia engine at their Tamano Factory in Japan. The MAN B&W 7S60ME-LGIA Mk 10.5 prototype engine will be installed on a bulk carrier for a joint venture between “K” LINE, NS United, and ITOCHU Corp. MAN Energy Solutions highlights the importance of using ammonia.
