Truyen Thong Va Phat Trien Cong Nghe Vietopen Joint Stock Company Address: 2nd Floor, No 829 De La Thanh, Ngoc Khanh Ward, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Enterprise code: 0103006074 Phone: 02462731006 Representative: Pham Tien Dung Adress: 829 De La Thanh, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Ngoc Khanh Ward, Ba Dinh District, Ha Noi CityFounding date: 11 - 11 - 2008