Dau Tu Phat Trien 309 Ha Noi Joint Stock Company Address: No 39, 48 Ho Tung Mau Lane, Mai Dich Ward, Cau Giay District, Ha Noi City Enterprise code: 0103676953 Phone: 02439946987 Representative: Hoang Thieu Son Adress: 2 Hao Nam, Dong Da District, Ha Noi City Mai Dich Ward, Cau Giay District, Ha Noi CityFounding date: 7 - 4 - 2009