Cong Nghe Thong Tin An Tuan Joint Stock Company Address: No 1a Dang Thai Than, Phan Chu Trinh Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101375076 Phone: 0248253588 Representative: Vu Ngoc Sang Adress: Doan Ket Hamlet, Ha Long Commune, Ha Trung District, Thanh Hoa Province Phan Chu Trinh Ward, Hoan Kiem District, Ha Noi CityFounding date: 20 - 6 - 2003