Truong Trung Hoc Co So Xa Tan Tri Address: Po Don Hamlet, Tan Tri Commune, Bac Son District, Lang Son Province Enterprise code: 4900357419 Phone: 02053739724 Adress: Bac Son District, Lang Son Province Tan Tri Commune, Bac Son District, Lang Son ProvinceFounding date: 30 - 7 - 2009