Cong Nghe Thap Viet Nam Joint Stock Company Address: No 109, Hoa Bang Street, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101553346 Phone: 02433540422 Representative: Dao Trung Kien Adress: No 4, Lane 1, Nguyen Cong Tru, Phuc La Ward, Ha Dong District, Ha Noi City Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 5 - 11 - 2004