Lach Bang Service and Engineering Construction Company Limited
Thôn Cao Bắc, Xã Hải Thượng, Tinh Gia District
Mat Troi Services Trading and Investment Company Limited
Khu Đồng Chợ, Tiểu khu 6, Thị Trấn Tĩnh Gia, Tinh Gia District
Quang Huy Construction and Service Company Limited
Thôn Xuân Thắng, Xã Anh Sơn, Tinh Gia District