Uy Ban Nhan Dan Xa Dong Yen Address: Yen Bang Hamlet, Dong Yen, Dong Yen Commune, Dong Son District, Thanh Hoa Province Enterprise code: 2801256342 Phone: 02378784337 Adress: Dong Son District, Thanh Hoa Province Dong Yen Commune, Dong Son District, Thanh Hoa ProvinceFounding date: 29 - 12 - 2008