Chi Nhanh Cong Ty TNHH Nha Nuoc Mot Thanh Vien Thuong Mai Va Xuat Nhap Khau Viettel Tai Yen Bai Address: No 27, Tran Hung Dao Street, Civil Group 3, Hong Ha Ward, Yen Bai City, Yen Bai Province Enterprise code: 0104831030-014 Phone: 02162661399 Representative: Nguyen Van Toi Adress: Civil Group 28, Ngoc Thuy Ward, Long Bien District, Ha Noi City Hong Ha Ward, Yen Bai City, Yen Bai ProvinceFounding date: 21 - 10 - 2010