The 21^st Conference on International Exchange of Professionals - Parallel Session in Japan and Cluster Meeting of Gala Technology 2023, which was held in Hotel emisia Sapporo, Japan on November 15-17, 2023, achieved a consummation. The significant event was proudly hosted by China Association for International Exchange of Personnel and World High Technology Society, operated by China Association for International Exchange of Personnel Japan Representative Office, Shenzhen Center for International Exchange of Personnel and BIT Group Global Ltd., The gathering integrated 10 parallel conferences together, which were The 15^th Annual World Cancer Congress (WCC), The 13^th Annual Conference of Neurotalk (NT), World Biotechnology Industry Conference (WBIC), The 13^th Annual International Congress of Cardiology (ICC), The 6^th Annual World Congress of Oral & Dental Medicine (CODM), The 8^th Annual World Congress of Infectious Diseases (WCID), The 11^th Annual World Congress of Ocean-2023 (WCO), The 4^th International Congress of Environment (ICE), The 5^th World Congress of Education (WCE), and The 8^th Annual Global Congress of Knowledge Economy (GCKE). Following meticulous preparation, over 200 specialists from 43 different countries and regions joined us in this collaborative endeavor.

The Opening Ceremony & Keynote Forum took place on the morning of November 15^th. Seven leading experts, Dr. Peter Ricketts, President and Vice-Chancellor, Acadia University, Canada; Dr. John Sansalone, Professor, Engineering School of Sustainable Infrastructure and Environment, University of Florida, USA; Dr. Hiroshi Ishida, Professor University of Tokyo, Japan; Dr. Kausalai (Kay) Wijekumar, Houston Endowed Chair, Texas A&M University, USA; Dr. Ewa Carrier, Vice President, Clinical Development, Fibrogen, USA; Dr. Ying Xia, Professor, Fudan University, China; Dr. Kiyoshi Nokihara, Founder & CEO/CSO, HiPepLaboratories, Japan gave brilliant plenary speeches which received enthusiastic responses from audiences. Dr. Ying Xia as moderators of the Opening Ceremony and Keynote Forum expressed great gratitude to the presence of speakers and participants and particularly wished all the guests a memorable stay in Sapporo on behalf of the organizing committee. All delegates enjoyed a great morning time full with frontier knowledge and warm discussion together.

As with previous editions, the primary aim of this meeting continued to facilitate the exchange of ideas among leading academic scientists and research scholars. Together, the experts explored critical topics related to ocean and environmental preservation and development, the future of education, as well as the ever-evolving trends and concerns within the knowledge economy. The event featured keynote lectures, poster exhibitions, and oral presentations on a wide range of cutting-edge subjects, offering valuable opportunities for learning and networking. This event comprised 24 parallel sessions, and in each of the subject tracks, participants discussed challenges, approaches and action points.

Before, during and after the conference, we received warm support and valuable suggestions from the delegates on how to better plan and organize the next conference. Depending on the warmly support and constructive suggestions, we are confident in organizing the next event which would be better than before. Hereby, we are delighted to welcome each and every one of you to join our next navigation for the scientific exploration in 2024.