Tsuneishi Shipbuilding in Japan has recently launched the country's first hydrogen-powered tugboat, representing a significant advancement in the maritime industry's efforts towards decarbonization. The tugboat, unveiled at the Tsuneishi Factory, is equipped with twin 12-cylinder hydrogen dual-fuel internal combustion engines with a total output of 4,400 hp. Additionally, it incorporates a high-pressure hydrogen gas storage system capable of containing approximately 250 kg of hydrogen. This innovative design results in a targeted 60% reduction in CO₂ emissions compared to traditional tugboats, all while ensuring equivalent operational performance. The vessel is versatile, capable of running entirely on traditional marine fuels, ensuring operational safety and flexibility. Notably, the tugboat is constructed using green steel, known as "JGreeX," provided by JFE Steel Corporation, reflecting Tsuneishi's wider strategy to develop a variety of low-emission vessels. This initiative aligns with the company's ambition towards carbon neutrality and includes plans for the creation of methanol- and LNG-fueled ships. Tsuneishi Shipbuilding's commitment to environmentally friendly shipbuilding practices signifies a promising step towards a more sustainable and eco-conscious maritime industry.