Phat Trien Tin Hoc Sao Viet Joint Stock Company Address: No 9/126, Xuan Dinh Street, Xuan Dinh Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0103148311 Phone: 02435666469 Representative: Nguyen Van Khoat Xuan Dinh Ward, Bac Tu Liem District, Ha Noi CityFounding date: 8 - 1 - 2009