Ky Thuat Cong Nghe 4C Viet Nam Joint Stock Company Address: Hamlet 3, Phuong Canh Ward, Nam Tu Liem District, Ha Noi City Enterprise code: 0105484887 Phone: 0964584646 Representative: Nguyen Tuan Anh Adress: 16/11 Mien 2, Du Hang Ward, Le Chan District, Hai Phong City Phuong Canh Ward, Nam Tu Liem District, Ha Noi CityFounding date: 7 - 9 - 2011