Japan ‧ Narita City, Chiba Prefecture
Republic of Korea ‧ Gumi City, North Gyeongsang Province
Japan ‧ Kumamoto Prefecture
United States ‧ Alameda County, California
Malaysia ‧ Penang
United States ‧ Montgomery County, Maryland
Republic of the Philippines
United States ‧ City of Long Beach, Los Angeles County, California
Japan ‧ Choshi City, Chiba Prefecture
United States ‧ City of Irvine, Orange County, California
Japan
Kingdom of the Netherlands ‧ Amsterdam
Japan ‧ Kagawa Prefecture
Malaysia