Chi Nhanh Phia Bac - Cong Ty Co Phan Dau Tu Va Truyen Thong Thang Long Address: 1st Floor So 47, Ba Trieu Street, Hang Bai Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0102725950-003 Phone: 02435577919 Representative: Phung Thi Hanh Adress: No 9, 400 Hoang Hoa Tham Lane, Thuy Khue Ward, Tay Ho District, Ha Noi City Hang Bai Ward, Hoan Kiem District, Ha Noi CityFounding date: 31 - 8 - 2011