• Mitsui O.S.K. Lines-backed project completed land-based tests of a hydrogen-fueled main engine for large commercial vessels.
• Factory trials reached at least 95% hydrogen co-firing, cutting GHG emissions by more than 95% versus heavy-fuel-oil engines.
• Engine uses high-pressure direct injection to stabilize hydrogen combustion, targeting commercial-scale marine propulsion applications.
• Deployment planned on a 17,500 DWT multipurpose vessel; installation scheduled for January 2027, onboard demonstration from April 2028.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Mitsui OSK Lines Ltd. published the original content used to generate this news brief on September 18, 2026, and is solely responsible for the information contained therein.