In Yokohama, a significant development towards zero-emission port operations has been initiated by MITSUI E&S at the Minami-Honmoku Pier Container Terminal, managed by Utoc Corporation. The on-site demonstrations feature a hydrogen fuel cell–powered Rubber Tired Gantry (RTG) crane, which was a retrofit of an existing near-zero-emission RTG with a hydrogen fuel cell power pack. This transformation has effectively turned the crane into a fully zero-emission piece of cargo handling equipment. The project falls within Utoc's ongoing demonstration program, showcasing the increasing interest in hydrogen as a clean energy source for port operations. The RTG crane is part of a new generation of near-zero emission equipment designed for easy upgrade to full zero-emission status once hydrogen fuel infrastructure is in place. The demonstration is expected to directly contribute to the reduction of CO₂ emissions, supporting Japan's broader goals for carbon neutrality in logistics and heavy industry. It also emphasizes MITSUI E&S's dedication to advancing sustainable port technologies and services.