Tin Hoc Duong Chan Troi LTD Address: Zoom 18 Nha A3 Khu, Cong Ty Che Tao& Sua Chua TB Thuy Loi Town, Thanh Tri District, Ha Noi City Enterprise code: 0101055485 Phone: 0248553047 Thanh Tri District, Ha Noi CityFounding date: 25 - 9 - 2000