I just happened to find this organization. They are the organization who made the Tri-lateral Common Vocabulary Dictionary which i posted earlier here in another subforum.
From their homepage: The 10th China-Japan-ROK Trilateral Foreign Ministers’ Meeting Held in Busan
On November 26, 2023, the 10th China-Japan-ROK Trilateral Foreign Ministers' Meeting was held in Busan, ROK. It is the first face-to-face meeting between the three Foreign Ministers since 2019. The meeting was presided by H.E. PARK Jin, Foreign Minister of the ROK and participated by H.E. KAMIKAWA Yoko, Foreign Minister of Japan, and H.E. WANG Yi, member of the Political Bureau of the CPC Central Committee and Foreign Minister of China. TCS Secretary-General LEE Hee-sup, as well as Deputy Secretary-General ZUSHI Shuji and YAN Liang also participated in the meeting.
The TCVDictionary site they created has interesting articles in the "What's New" subsections. One of the articles elaborates on the differences in Kanji/Hanja/Hanzi common vocabulary meaning across the 3 languages (CN, JP, KR).