Quang Cao & Truyen Thong Su Tu Do Joint Stock Company Address: No 457 Thuy Khue, Buoi Ward, Tay Ho District, Ha Noi City Enterprise code: 0102682591 Phone: 0242410076 Representative: Dang Lien Huong Adress: 17 Hang Quat, Hoan Kiem District, Ha Noi City Buoi Ward, Tay Ho District, Ha Noi CityFounding date: 19 - 3 - 2008