Dau Tu Xay Dung Va Thuong Mai Topcon Vina Joint Stock Company Address: No 15/16/78, Giai Phong Street, Dong Da District, Ha Noi City Enterprise code: 0104617661 Phone: 02438691116 Representative: Do Thi Thin Adress: No 78, Lane 176, Do Duc Duc Street, Nam Tu Liem District, Ha Noi City Dong Da District, Ha Noi CityFounding date: 26 - 4 - 2010