Dau Tu Va Phat Trien Thang Long Xanh Joint Stock Company Address: 8th Floor, Elcom Building, Duy Tan Street, Cau Giay District, Ha Noi City Enterprise code: 0105175342 Phone: 02485871983 Representative: Nguyen The Trung Adress: No 3, Chan Cam Street, Hoan Kiem District, Ha Noi City Cau Giay District, Ha Noi CityFounding date: 7 - 3 - 2011