Ho Tro Phat Trien Dien Tu Tin Hoc LTD Address: No 4 Ly Nam De, Hoan Kiem District, Ha Noi City Enterprise code: 0100248886 Phone: 0248259806; 0248253254 Representative: Nguyen Thinh Adress: 41 33 Khoi 50 Van Phuc Civil Group, Ba Dinh District, Ha Noi City Hoan Kiem District, Ha Noi CityFounding date: 15 - 6 - 1998