Tin Hoc - Vien Thong Ha Thanh Joint Stock Company Address: No 212, Thai Ha Street, Trung Liet Ward, Dong Da District, Ha Noi City Enterprise code: 0101469292 Phone: 0245375899 Representative: Pham Dinh Chung Adress: Civil Group 1, Dong Dat Commune, Phu Luong District, Thai Nguyen Province Trung Liet Ward, Dong Da District, Ha Noi CityFounding date: 14 - 4 - 2004