He Thong Cong Nghe TTS Joint Stock Company Address: No 11, Lane 130, Nguyen Khoai Street, Thanh Luong Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0108276483 Phone: 02439870678 Representative: Dang Thanh Tung Thanh Luong Ward, Hai Ba Trung District, Ha Noi CityFounding date: 15 - 5 - 2018