Tu Van Va Dich Vu Ky Thuat Tong Hop 1 Joint Stock Company Address: No 14, Civil Group 11, Yen So Ward, Hoang Mai District, Ha Noi City Enterprise code: 0106324854 Phone: 0904747858 Representative: Pham Ngoc Quynh Adress: No 170 Nguyen Luong Bang, Quang Trung Ward, Dong Da District, Ha Noi City Yen So Ward, Hoang Mai District, Ha Noi CityFounding date: 2 - 10 - 2013