Dau Tu Va Phat Trien Cong Nghe Vien Thong - Phat Thanh - Truyen Hinh Joint Stock Company Address: No 3/32, Nguyen Van Troi Street, Phuong Liet Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101892606 Phone: 0913562309 Representative: Nguyen Quoc The Adress: No 8, Ca Trong Street, Cau Go Town, Yen The District, Bac Giang Province Phuong Liet Ward, Thanh Xuan District, Ha Noi CityFounding date: 20 - 3 - 2006