Thuong Mai Va Vien Thong H.D.G Viet Nam Joint Stock Company Address: Zoom 201 So 138 Vuong Thua Vu, Thanh Xuan District, Ha Noi City Enterprise code: 0104858667 Phone: 02435684501 Representative: Do Van Dung Thanh Xuan District, Ha Noi CityFounding date: 6 - 8 - 2010