O To HTC - Hasco Joint Stock Company Address: No 98, Thai Thinh Street, Nga Tu So Ward, Dong Da District, Ha Noi City Enterprise code: 0103716733 Phone: 02438570870 Representative: Nguyen Truong Cuong Adress: No 70a, Hoang Hoa Tham Street, Ngoc Ha Ward, Ba Dinh District, Ha Noi City Nga Tu So Ward, Dong Da District, Ha Noi CityFounding date: 18 - 4 - 2009