The Trilateral Cooperation Secretariat held a celebration of the "TCS Day" celebration at Cheonggyeong Square in Seoul. The Secretariat will continue to work to promote activities and projects in various fields between China, Japan and the Republic of Korea to promote peace and prosperity in the region.

A number of booths were set up at the event site, introducing important projects and publications of the Secretariat. The 2023 China-Japan-Korea Spirit Annual Chinese Character "Hehe" Calligraphy Performance, China-Japanese-Korean Song and Dance Performance, etc.