Cong Nghe TTS Viet Nam Joint Stock Company Address: No 11, De La Thanh Street, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Enterprise code: 0105861817 Phone: 0246671077; 024766710777 Representative: Nguyen Duc Thinh Ngoc Khanh Ward, Ba Dinh District, Ha Noi CityFounding date: 19 - 4 - 2012