Thuong Mai Dien Tu Va Dich Vu Vien Thong Hoang Son LTD Address: Thon, Cho Street, Tan Son Commune, Luc Ngan District, Bac Giang Province Enterprise code: 2400818932 Phone: 01626818333; 0326818333 Representative: Hoang Van Son Tan Son Commune, Luc Ngan District, Bac Giang ProvinceFounding date: 20 - 7 - 2017