Stephan is also involved in many charity projects, especially in youth development through the Muaythai Against Drugs (MAD) program established by Privy Councillor to HM the King of Thailand, General Pichitr Kullavanijaya.
More recently, Stephan has been one of the main driving forces behind the collaboration between the UN Women and Muaythai's UNiTE to End Violence Against Women campaign; a joint campaign in which an MoU was signed in April 2013.