Tam Ngoc Phu Tho Company Limited
Khu Tân Hương, Xã Hương Cần, Thanh Son District
Quang Hop Construction and Trading Company Limited
Số nhà 183, phố Ba Mỏ, Thị trấn Thanh Sơn, Thanh Son District
Tan Phat Investment and Production Joint Stock Company
Khu 3, Xã Giáp Lai, Thanh Son District