Hop Tac Xa Khang Vuong Hai Yen Address: Khu 7, Hai Yen Ward, Mong Cai City, Quang Ninh Province Enterprise code: 5700532633 Phone: 0203786065 Representative: Luong Thi Ha Adress: Hamlet 8, Hai Hoa Ward, Mong Cai City, Quang Ninh Province Hai Yen Ward, Mong Cai City, Quang Ninh ProvinceFounding date: 16 - 2 - 2005