United States ‧ City of Fremont, Alameda County, California
Japan ‧ Tsukubamirai City, Ibaraki Prefecture
Japan ‧ Kagawa Prefecture
Czech Republic ‧ City of Brno, South Moravian Region
Japan ‧ Kaga City, Ishikawa Prefecture
Malaysia ‧ Penang
Republic of Korea ‧ Seoul Special City
Japan ‧ Eniwa City, Hokkaido
United States ‧ City of Burlington, Alamance County, North Carolina
Japan ‧ Narita City, Chiba Prefecture
Republic of Korea ‧ Nonsan City, South Chungcheong Province
Socialist Republic of Vietnam ‧ Dong Thap Province
Kingdom of the Netherlands ‧ Utrecht Region
Japan
Republic of Kiribati
United States ‧ Dallas County, Texas
Japan ‧ Miyagi Prefecture
Japan ‧ Choshi City, Chiba Prefecture
