Dau Tu Olympic Joint Stock Company Address: 7th Floor So 24 Lang Ha, Lang Ha Ward, Dong Da District, Ha Noi City Enterprise code: 0101514428 Phone: 0245375356 Representative: Quach Van Chien Adress: 21 Tran Phu, Ba Dinh District, Ha Noi City Lang Ha Ward, Dong Da District, Ha Noi CityFounding date: 5 - 8 - 2004