Dau Tu Vien Dong Joint Stock Company Address: 6th Floor, Vien Dong Building, No 36 Hoang Cau, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0101843221 Phone: 02435332464 Representative: Nguyen Binh Dong Adress: 12 A Cat Linh, Cat Linh Ward, Dong Da District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 22 - 12 - 2005