South Korea and Japan are actively collaborating to advance their hydrogen economies. The 2nd Korea-Japan Hydrogen Cooperation Dialogue held in Tokyo solidified their commitment to working together. Following previous agreements, they established a working group focusing on key areas such as developing a clean hydrogen supply chain, addressing carbon intensity, setting standards and regulations, and ensuring safety. This meeting reviewed progress and discussed expanding collaboration. Noteworthy was the emphasis on the private sector's role, leading to the decision to set up a private hydrogen supply chain cooperation platform. The goal is to boost cooperation in various areas like clean hydrogen supply chain development, hydrogen co-firing power generation, and expanding hydrogen mobility. Choi Woo-hyuk from South Korea's MOTIE highlighted the shared interests of both nations as leading players in the clean hydrogen sector, expressing intent to further public-private cooperation for the global hydrogen economy ecosystem.