Hoang Mai General Port Joint Stock Company
xóm 3B, Xã Quỳnh Lộc, Hoang Mai Town
Hoan Chau High Technology Development Joint Stock Company
xóm 5, Xã Diễn Phúc, Dien Chau District
Thuy Minh Chau Private Enterprise
Khối 2, Phường Nghi Tân, Cua Lo Town
Xanh Duc Thanh Mai Science Company Limited
Xóm 6, Xã Quỳnh Lương, Quynh Luu District