In a significant development for the maritime industry's environmental efforts, Japan recently launched its first hydrogen dual-fuel tug as part of The Nippon Foundation's 'Zero Emission Ships Project.' The pioneering vessel, constructed by Tsuneishi Shipbuilding, is equipped with a high-power output hydrogen dual-fuel internal combustion engine and a large-capacity high-pressure hydrogen gas storage system. This design allows the tug to store approximately 250kg of high-pressure hydrogen gas, maintaining operational performance similar to traditional fuels while reducing carbon dioxide emissions by around 60 percent compared to conventional tugboats. The tug's twin 12-cylinder hydrogen-blended engines provide it with the necessary power to support berthing and operational activities for large vessels, showcasing the industry's focus on maneuverability and high engine output. Additionally, the vessel, under 300 gross tons and 38 meters in length, aims to operate using a combination of hydrogen and traditional marine fuels. To further enhance sustainability, Tsuneishi integrated 'JGreeX,' a green steel product from JFE Steel Corporation, in the construction process. This initiative underscores the project's commitment to environmental responsibility and innovation in utilizing hydrogen as a marine fuel. While hydrogen fuel cells are a common focus in the industry, the use of internal combustion engines in the tug reflects ongoing advancements in hydrogen technology for maritime applications. The project aligns with global sustainability goals and echoes other initiatives such as the Port of Antwerp-Bruges and CMB.TECH's introduction of the first hydrogen-fueled tug, highlighting the industry's shift towards cleaner marine fuels and innovative vessel designs.