Dau Tu Va Phat Trien Cong Nghe On2s LTD Address: Mai Ha Hamlet, Mai Dinh Commune, Hiep Hoa District, Bac Giang Province Enterprise code: 2400841427 Phone: 0984641229 Representative: Quan Vu Nam Mai Dinh Commune, Hiep Hoa District, Bac Giang ProvinceFounding date: 12 - 6 - 2018