Trung Tam Tin Hoc Address: No 113, Tran Duy Hung, Cau Giay District, Ha Noi City Enterprise code: 0101821806 Phone: 0249438058 Representative: Ha Quoc Trung Adress: No 41 Giai Phong, Hai Ba Trung District, Ha Noi City Cau Giay District, Ha Noi CityFounding date: 23 - 11 - 2005