Tong Hop Bac Ha Joint Stock Company Address: C7 To 122 Hoang Cau, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0101170470 Phone: 0245374764 Representative: Nguyen Huy Hieu Adress: Yen Nguu Hamlet, Tam Hiep Commune, Thanh Tri District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 19 - 10 - 2001