Truong Trung Hoc Co So Hoang Van Thu Address: Hoang Van Thu Commune, Van Lang District, Lang Son Province Enterprise code: 4900239782 Phone: 0205781614 Representative: Nguyen Thi Nay Adress: Nhan Hoa Hamlet, Hoang Van Thu Commune, Van Lang District, Lang Son Province Hoang Van Thu Commune, Van Lang District, Lang Son ProvinceFounding date: 22 - 3 - 2006