Kobe, Japan Chiba, Japan[86] Incheon, South Korea Mobile, Alabama, United States[87] Fitchburg, Massachusetts, United States Philadelphia, United States Melbourne, Australia Bangkok, Thailand Phnom Penh, Cambodia Pyongyang, North Korea[88] Sarajevo, Bosnia and Herzegovina Abidjan, Côte d'Ivoire Groningen, the Netherlands (since 1985) Rishon LeZion, Israel İzmir, Turkey Haiphong, Vietnam (since 1997) Singapore Mar del Plata, Argentina (since 2001) Larnaca, Republic of Cyprus (since 2007)[89] Jönköping, Sweden (since 1993)[90] Thessaloniki, Greece (since 2002)