Truong Pho Thong Dan Toc Noi Tru, Trung Hoc Co So Address: Huu Vinh Commune, Bac Son District, Lang Son Province Enterprise code: 4900357507 Phone: 02053837414 Adress: Bac Son District, Lang Son Province Huu Vinh Commune, Bac Son District, Lang Son ProvinceFounding date: 30 - 7 - 2009