Truong Trung Hoc Co So Xa Tan Huong Address: Don Uy Hamlet, Tan Huong Commune, Bac Son District, Lang Son Province Enterprise code: 4900357232 Phone: 02053737210 Adress: Bac Son District, Lang Son Province Tan Huong Commune, Bac Son District, Lang Son ProvinceFounding date: 30 - 7 - 2009