Du An Phat Trien Giao Duc Trung Hoc Pho Thong Address: No 32 Hai Ba Trung, Trang Tien Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101526857 Phone: 0248243855 Adress: 2a Nghach 324/10 Thuy Khue, Tay Ho District, Ha Noi City Trang Tien Ward, Hoan Kiem District, Ha Noi CityFounding date: 8 - 9 - 2004