Cong Nghe Hoang Thanh Joint Stock Company Address: No 1, Dinh Le, Trang Tien Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0105739648 Phone: 0913555369 Representative: Vu Minh Tan Trang Tien Ward, Hoan Kiem District, Ha Noi CityFounding date: 16 - 12 - 2011