Go (Board Game)
Continuation of Goodwill Go (Board Game) Exchange: Since 1999
- Yangzhou City (扬州市)
- Karatsu City (唐津市)
- Yeosu City (여수시)
Vigorous Economic Exchange among the Three Provinces/Prefectures an...
- Jilin Province (吉林省)
- Tottori Prefecture (鳥取県)
- Gangwon Province (강원도)
Museum Cooperation Based on the Sister/Friendship Relation among th...
- Beijing City (北京市)
- Tokyo Metropolis (東京都)
- Seoul Special City (서울특별시)
Museum Exchange among Port Cities – Building Accomplishments...
- Dalian City (大连市)
- Kitakyushu City (北九州市)
- Incheon Metropolitan City (인천광역시)
Youth Exchange, Sports
Continuation of Youth Sports and Friendship Provincial/Prefectural...
- Liaoning Province (辽宁省)
- Kanagawa Prefecture (神奈川県)
- Gyeonggi Province (경기도)
Youth Exchange, Culture, Aging Society & Senior Welfare
Trilateral Exchange since 1997: Institutionalization in 2006
- Shandong Province (山东省)
- Yamaguchi Prefecture (山口県)
- South Gyeongsang Province (경상남도)
Trilateral Environmental Cooperation Continues
- Jiangsu Province (江苏省)
- Ishikawa Prefecture (石川県)
- North Jeolla Province (전라북도)
Diversification of Three Cities/County Cooperation through Crested...
- Hanzhong City (汉中市)
- Sado City (佐渡市)
- South Gyeongsang Province, Changnyeong County (경상남도 창녕군)