Truong THCS Xa De Tham Address: Po Man, De Tham Commune, Trang Dinh District, Lang Son Province Enterprise code: 4900380640 Phone: 02053883948 Adress: Trang Dinh District, Lang Son Province De Tham Commune, Trang Dinh District, Lang Son ProvinceFounding date: 14 - 9 - 2009