Cong Nghe Truc Tuyen Esn Joint Stock Company Address: Zoom 308, Nha A5, Do Thi Dai Kim, Dinh Cong Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101507678 Phone: 0242151544 Representative: Chu Dinh Chau Adress: Civil Group 13, Tran Hung Dao Ward, Phu Ly City, Ha Nam Province Dinh Cong Ward, Hoang Mai District, Ha Noi CityFounding date: 14 - 7 - 2004