Truong Trung Hoc Co So Xa Chien Thang Address: Hong Phong 03 Hamlet, Chien Thang Commune, Bac Son District, Lang Son Province Enterprise code: 4900363726 Phone: 02053739597 Adress: Bac Son District, Lang Son Province Chien Thang Commune, Bac Son District, Lang Son ProvinceFounding date: 7 - 8 - 2009