January 13, 2016September 2, 2019 Sandrine Han Call for student artworks: Celebrating the 2016 UNESCO International Arts Education Week
April 30, 2015 Sandrine Han Celebrating the 4th UNESCO International Arts Education Week: Call for art works
February 19, 2015September 2, 2019 Sandrine Han Harmony For Peace Foundation: Peace Project Japan 2015
March 24, 2013 Sandrine Han INTERNATIONAL PAINT PALS “Friendship and Understanding through the Universal Language of Art”