Cong Nghe Sinh Hoc Khai Hoan LTD Address: No 4/190, Giai Phong Street, Phuong Liet Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0102143455 Phone: 0247665751 Representative: Nguyen Huy Cuong Phuong Liet Ward, Thanh Xuan District, Ha Noi CityFounding date: 19 - 1 - 2007