France

Saint-Etienne

1984-3-27

 Japan

Handa

1993-5-27

USA

 Newark

1993-4-21

Germany

Bochum

1994-9-16

 Austria

Leoben

1994-8-29

Australia

 City of Greater Dandenong

1996-9-12

Ukraine

Kirovohrad Region 

1996-8-31

 Russia

Ryazan

1998-5-13

Brazil

Osasco

1999-5-11

 ROK

Jeongeup

2000-9-27

Germany

 Erfurt

2005-11-26

New Zealand

Hawke's Bay

2006-10-21

Brazil

Pouso Alegre

2012-12-05

USA

Morgantown

2016-03-23