Truong Trung Hoc Co So Dai Dong 2 Address: Dai Dong, Trang Dinh District, Lang Son Province Enterprise code: 4900374220 Phone: 02053884170 Representative: Hoang Xuan Dung Adress: Trang Dinh District, Lang Son Province Dai Dong Commune, Trang Dinh District, Lang Son ProvinceFounding date: 1 - 9 - 2009