Dau Tu Va Phat Trien Cong Nghe Tan Viet Joint Stock Company Address: No 199 Tan Mai, Tan Mai Ward, Hoang Mai District, Ha Noi City Enterprise code: 0102152636 Phone: 0436343450 Representative: Tran Xuan Viet Adress: No 457 D3 Tan Mai, Tan Mai Ward, Hoang Mai District, Ha Noi City Tan Mai Ward, Hoang Mai District, Ha Noi CityFounding date: 1 - 2 - 2007