Cong Nghe San Nam Joint Stock Company Address: Sannam Building, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0101948182 Phone: 0248374486 Representative: Doan Tien Dat Adress: No 21, 20/14 Ho Tung Mau Alley, Mai Dich Ward, Cau Giay District, Ha Noi City Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 23 - 5 - 2006