The 13th Annual World Congress of Ocean (WCO-2025) will be held from November 11-13, 2025, in Osaka, Japan. The WCO series has become one of the most prominent ocean-related events in Asia, providing a multidisciplinary platform for professionals in the field. This congress serves as a vital forum for business leaders, academic researchers, and government representatives from around the world to meet, share ideas, and exchange insights on research technologies and their practical applications. It also fosters collaboration by identifying gaps in current technological developments. The three-day event will feature a variety of activities, including Plenary Forums, Parallel Sessions, a Welcome Banquet, Exhibitions, Poster Sessions, and Tours, making it a comprehensive and engaging experience for all participants.