Dich Vu Thuong Mai, Tham Do Va Khai Thac Khoang San Hai Thinh Joint Stock Company Address: No 7, Alley 23, Lane 546, Tran Cung Street, Co Nhue 1 Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0108022111 Phone: 02437543485 Representative: Nguyen Kim Tien Adress: No 14/7/21, Tran Phu Street, Nang Tinh Ward, Nam Dinh City, Nam Dinh Province Co Nhue 1 Ward, Bac Tu Liem District, Ha Noi CityFounding date: 12 - 10 - 2017