Dai Truyen Thanh Yen Son Address: An Tuong Commune, Tuyen Quang City, Tuyen Quang Province Enterprise code: 5000340407 Phone: 02073872344 Adress: Yen Son District, Tuyen Quang Province An Tuong Ward, Tuyen Quang City, Tuyen Quang ProvinceFounding date: 26 - 2 - 2009