Cong Nghe Thong Tin Va Truyen Thong Viet Nam Joint Stock Company Address: No 21/84 Linh Nam, Mai Dong Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101716382 Phone: 0249476111 Representative: Nguyen Hoang Trung Adress: No 27a Tran Hung Dao, Hoan Kiem District, Ha Noi City Mai Dong Ward, Hoang Mai District, Ha Noi CityFounding date: 14 - 7 - 2005