Thuong Mai Va Dich Vu Big Step Joint Stock Company Address: No 8, Lane 442, Pham Van Dong Street, Co Nhue 1 Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0109851009 Phone: 0962556611 Representative: Do Tri Vien Co Nhue 1 Ward, Bac Tu Liem District, Ha Noi CityFounding date: 9 - 12 - 2021