Sach Va Thiet Bi Giao Duc Tri Tue Joint Stock Company Address: No 187 (57 CU), Giang Vo Street, Cat Linh Ward, Dong Da District, Ha Noi City Enterprise code: 0101473309 Phone: 0248515567 Representative: Cao Trung Son Cat Linh Ward, Dong Da District, Ha Noi CityFounding date: 22 - 4 - 2004