Dau Tu Phat Trien Truyen Thong Doanh Nghiep Joint Stock Company Address: Zoom 202, B11a Building, Moi Nam Trung Yen Urban Area, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0102223125 Phone: 0242810883 Representative: Nguyen Thi Bich Hanh Adress: 18 Gia Ngu, Hang Bac Ward, Hoan Kiem District, Ha Noi City Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 20 - 4 - 2007