Truong Trung Hoc Co So Hai Yen TP Mong Cai Address: Khu 5, Hai Yen Ward, Mong Cai City, Quang Ninh Province Enterprise code: 5700977103 Phone: 02033887597 Hai Yen Ward, Mong Cai City, Quang Ninh ProvinceFounding date: 2 - 12 - 2008