Cong Nghe Va Vien Thong Joint Stock Company Address: 12 A2/52, Quan Nhan Street, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101295769 Phone: 0245580456 Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 29 - 10 - 2002