Ulsan City in South Korea is making significant progress in hydrogen infrastructure development with a major investment of 29.5 billion won, including 14.75 billion won in state funds secured for the 'Hydrogen City Creation Project'. This initiative marks Ulsan City as the first local government in South Korea to undertake such a project. The planned installation of 11.9km of hydrogen pipes by 2028 will directly benefit industrial areas like Hyundai Motor's Ulsan plant and Hyundai Heavy Industries. The infrastructure expansion includes provisions for hydrogen tram operations, large-capacity hydrogen charging stations, and the introduction of eco-friendly hydrogen trucks in Korea. By utilizing hydrogen produced by the industrial complex, Ulsan aims to support the conversion of diesel-based trucks into domestic green vehicles. This shift aligns with environmental goals and promotes sustainable transportation solutions. Ulsan City has already demonstrated its commitment to carbon-neutral practices through projects like the 'Hydrogen Demonstration City Creation Project', where hydrogen-produced electricity was supplied to residential areas, creating the world's first carbon-neutral hydrogen apartment. These efforts showcase Ulsan's proactive approach to urban development and environmental sustainability through innovative hydrogen initiatives.