Cong Nghe Brostech Joint Stock Company Address: No 21, Alley 24, 9 Tran Quoc Hoan Lane, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0109831161 Phone: 0355815244 Representative: Bui Hoang Ha Chau Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 24 - 11 - 2021