Dau Tu Va Phat Trien Hoang Mai Joint Stock Company Address: No 79 Ba Trieu, Nguyen Du Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0102176524 Phone: 0249740609; 0249741753 Representative: Nguyen Van Hoc Adress: 1a Nha 38 DH Bach Khoa, BK Ward, Hai Ba Trung District, Ha Noi City Nguyen Du Ward, Hai Ba Trung District, Ha Noi CityFounding date: 6 - 3 - 2007