Thuong Mai Hoang Son LTD Address: Hamlet 1, Dai Dong Commune, Dai Dong Commune, Yen Binh District, Yen Bai Province Enterprise code: 5200472778 Phone: 02163582210 Representative: Nguyen Thuy Quynh Adress: Civil Group 26, Yen Thinh Ward, Yen Bai City, Yen Bai Province Dai Dong Commune, Yen Binh District, Yen Bai ProvinceFounding date: 16 - 11 - 2009