 2016 -- A.S Popov Central Museum of Communication, St. Petersburg, Russia, International Mail Art Show

2007-- Museum of Fine Arts, Budapest, Hungary (International Artists' Stamps, Parabélyeg)

2005 -- Musée du Chateau Ramezay Museum (1705-2005) group show, Montréal, Québec, Canada, 8

2004 -- Hanseo University Art Museum, Seoul, South Korea (Cho Sang-Hyun, Antoni Miro, Paul Hartal),  

2002 -- Cho Sang-Hyun and Paul Hartal, Duo, Centre des loisirs, Saint Laurent, Montréal, Québec, 

2002 -- Gallery Eve, solo show, Seoul, South Korea 

2001 -- Lincoln Center, New York and R.W.Johnson University of Medicine, NJ.