VINSSEN, a maritime decarbonization technology specialist, has achieved the Approval in Principle (AIP) certification from the Korean Register for introducing Korea's first tugboat with a hydrogen fuel cell propulsion system. This milestone resulted from a collaborative effort with KRE, a leader in ship design and maritime infrastructure engineering. The joint-research project aims to apply eco-friendly technologies to high-carbon-emitting vessels like tugboats, signaling a shift towards sustainability in the maritime industry. The 2,700 kW hydrogen fuel cell-powered electric tugboat designed by VINSSEN utilizes hydrogen fuel for propulsion and stores excess electricity in batteries to ensure efficient operations. During high-demand situations, the stored energy supplements the fuel cells, enabling stable performance. VINSSEN's system optimizes hydrogen energy usage based on the tugboat's operational needs while meeting environmental regulations. Beyond fuel cell technology, VINSSEN's solution integrates battery energy storage systems, providing a holistic approach to green propulsion. This innovation not only enhances performance in specialized marine environments but also supports the industry's decarbonization goals. VINSSEN's participation in Sea Asia 2025 demonstrates its commitment to promoting eco-friendly vessels and propulsion systems. With over 50 patents in electric propulsion and hydrogen fuel cells for ships, VINSSEN strives to lead the maritime industry towards a sustainable future through innovative and scalable decarbonization technologies.