Dien Chau Environment Joint Stock Company
Xóm 2B, Xã Diễn Cát, Dien Chau District
Management of Non-Traditional Security Company Limited
Số 93, QL46, Thị Trấn Nam Đàn, Nam Dan District
Kien Ho Private Enterprise
Xóm 4, Xã Hưng Chính, Vinh City
Yen Thanh Environmental Service Joint Stock Company
Khối 1, Thị Trấn Yên Thành, Yen Thanh District
T-Tech Quynh Luu Environmental Joint Stock Company
Thôn 5, Xã Ngọc Sơn, Quynh Luu District