United States ‧ City of Lomita, Los Angeles County, California
Japan ‧ Kaga City, Ishikawa Prefecture
United States ‧ City of Dallas, Dallas County, Texas
Federal Republic of Germany
Japan
Japan ‧ Okinawa Prefecture
United States ‧ City of Irvine, Orange County, California
The Kingdom of Thailand ‧ Yang Talat
Czech Republic ‧ Brno
Japan ‧ Narita City, Chiba Prefecture
Japan ‧ Choshi City, Chiba Prefecture
Belgium ‧ City of Brussels
United States ‧ City of Long Beach, Los Angeles County, California
Japan ‧ Miyagi Prefecture
Federal Republic of Germany ‧ Hannover