Cong Nghe Dia Tin Hoc Joint Stock Company Address: No 59 Civil Group 17, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101326960 Phone: 0248340903 Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 24 - 1 - 2003