Truong Tieu Hoc Va Trung Hoc Co So Xa Quynh Son Address: Don Riec 1 Hamlet, Quynh Son Commune, Bac Son District, Lang Son Province Enterprise code: 4900358719 Phone: 02053837519 Adress: Bac Son District, Lang Son Province Quynh Son Commune, Bac Son District, Lang Son ProvinceFounding date: 3 - 8 - 2009