Truong Man Non Dong Yen Address: Dong Kem Hamlet, Dong Yen Commune, Bac Quang District, Ha Giang Province Enterprise code: 5100261438 Phone: 02193890365 Adress: Tan Quang, Bac Quang District, Ha Giang Province Dong Yen Commune, Bac Quang District, Ha Giang ProvinceFounding date: 10 - 2 - 2009