Truong Tieu Hoc Xa Tan Thanh Address: Tan Thanh Commune, Bac Son District, Lang Son Province Enterprise code: 4900357352 Phone: 02053738507 Adress: Bac Son District, Lang Son Province Tan Thanh Commune, Bac Son District, Lang Son ProvinceFounding date: 30 - 7 - 2009