He Thong Dien NTT LTD Address: No 97, Nguyen An Ninh Street, Tuong Mai Ward, Hoang Mai District, Ha Noi City Enterprise code: 0102381347 Phone: 02462753463 Representative: Cao Anh Tuan Tuong Mai Ward, Hoang Mai District, Ha Noi CityFounding date: 10 - 10 - 2007