Thuong Mai Va Phat Trien Tin Hoc Truong Thuy Joint Stock Company Address: No 10 Hang Giay, Dong Xuan Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101428497 Phone: 0249270455 Representative: Nguyen Thi Thuy. Adress: No 10 Hang Giay, Dong Xuan Ward, Hoan Kiem District, Ha Noi City Dong Xuan Ward, Hoan Kiem District, Ha Noi CityFounding date: 18 - 12 - 2003