Mai Khoan Address: No 235 De La Thanh, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0101541125 Phone: 0248517829 Representative: Bui Van Khoan Adress: No 21 Nguyen Luong Bang, Nam Dong Ward, Dong Da District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 18 - 10 - 2004