OEC with its first name as Operations Enfants du Cambodge took its birth on 1st March 1996, authorized by paper no 198 sjn, dated 14 March 1997 of Ministry of Interior, focusing its activities on serving children of father or mother wounded by mine explosion, or parents member infected by HIV/AIDS, hospitalized in reference hospital of Battambang. Step by step the activities of Operations Enfants de Battambang, supported by international organizations and foundation, extended its operational scope to support orphans of AIDS parents, disabled children, children of poor families, children living in areas facing difficulties and to empower poor children and young people not attending formal school by organizing non-formal education and health care for them. These supporting activities spread out to other nearby provinces, Banteay Meanchey, Pursat, and Pailin that caused the organization to raise its function to “Operations Enfants du Cambodge” (OEC), approved by paper no 1564 sjn on 5 December 2006 of Ministry of Interior.