Truong Tieu Hoc Dong Yen Address: Dong Yen, Dong Son District, Thanh Hoa Province Enterprise code: 2801254747 Phone: 02378784407 Adress: Dong Son District, Thanh Hoa Province Dong Yen Commune, Dong Son District, Thanh Hoa ProvinceFounding date: 29 - 12 - 2008