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
October 26, 2014September 2, 2019 Sandrine Han 2015 USSEA Regional Conference An Inclusive World: Bridging Communities
October 7, 2014 Sandrine Han CONSULTATION INTERNATIONALE – ACTIONS CULTURELLES DU METRO DU GRAND PARIS(INTERNATIONAL CONSULTATION – CULTURAL ACTIONS OF GREATER PARIS METRO)