Thai Hoang Trading and Investerment Company Limited.
Khu 1, Xã Hương Lung, Cam Khe District
Tuan Dien Company Limited
Khu Gò Chùa, Xã Sơn Tình, Cam Khe District
Son Hang Trading and Construction Company Limited
Khu 3, Thị trấn Sông Thao, Cam Khe District