Phu Tho Cement Joint Stock Company
Khu 12, Thị trấn Thanh Ba, Thanh Ba District
TN Tuoi Tre Construction Enterprise
khu 3, Phường Vân Phú, Viet Tri City
Song Thao Cement Joint Stock Company
Khu 9, Xã Ninh Dân, Thanh Ba District
Voi Dai Hung Building Materials And Company Limited
Thôn Ngọc Chúc 2, Xã Chí Đám, Doan Hung District
Song Da Minerals Joint Stock Company
Khu 5, Thị trấn Thanh Thuỷ, Thanh Thuy District