Dien Tu Vien Thong Bac A Joint Stock Company Address: No 27 Duong Giap Hai, Xuong Giang Commune, Bac Giang City, Bac Giang Province Enterprise code: 2400290882 Phone: 02144558583 Representative: Dao Van Tan Adress: 29, Giap Hai Street, Bac Giang City, Bac Giang Province Xuong Giang Ward, Bac Giang City, Bac Giang ProvinceFounding date: 25 - 2 - 2003