Federal Republic of Germany
Czech Republic ‧ Brno
United States ‧ San Bernardino County, California
Republic of the Philippines
United States ‧ City of Houston, Texas
Japan ‧ Tokushima Prefecture
Japan ‧ Narita City, Chiba Prefecture
Japan ‧ Tsukubamirai City, Ibaraki Prefecture
Japan ‧ Okinawa Prefecture
The Kingdom of Thailand ‧ Yang Talat
Japan ‧ Eniwa City, Hokkaido
United States ‧ City of New York, New York
Republic of the Marshall Islands
Republic of South Africa ‧ Johannesburg
United States ‧ City of Irvine, Orange County, California
Japan ‧ Miyazaki Prefecture
Japan ‧ Kagawa Prefecture
Republic of Korea ‧ Gumi City, North Gyeongsang Province