Dau Tu Phat Trien Ky Nghe Va Xay Lap Hoang Mai Joint Stock Company Address: No 69, Linh Nam Street, Mai Dong Ward, Hoang Mai District, Ha Noi City Enterprise code: 0102195975 Phone: 02436338747 Representative: Nguyen Trung Binh Adress: No 3 Y Mieu, Van Mieu Ward, Dong Da District, Ha Noi City Mai Dong Ward, Hoang Mai District, Ha Noi CityFounding date: 30 - 3 - 2007