Mo Phu Luong Stone Company Limited
Xóm Yên Thịnh, Xã Yên Lạc, Phu Luong District
Tue Tam Thai Nguyen Company Limited
Xóm Cổng Đồn, Xã Cổ Lũng, Phu Luong District
Thien Tai Trading Company Limited
Xóm Sứ, Xã Tân Hương, Pho Yen Town
Quang Son Mineral Mining Company Limited
xóm Sông Cầu 3, Xã Hóa Thượng, Dong Hy District
Phu Hoang Dat Investment Construction and Trading Joint Stock Company
Phố Giang Sơn, Thị Trấn Giang Tiên, Phu Luong District
Manh Hai Joint Stock Company
Xóm Tân Đô, Xã Hòa Bình, Dong Hy District
Cong Huong Trading And Investment Joint Stock Company
Đường Minh Cầu, Tổ 11, Phường Phan Đình Phùng, Thai Nguyen City
Phu Cuong Thai Nguyen Joint Stock Company
Xóm Vực Giảng, Xã Tân Hòa, Phu Binh District
Phat Dat Trading Business Joint Stock Company
Tổ 14, Phường Hoàng Văn Thụ, Thai Nguyen City
Nam Thai Minerals Joint Stock Company
Xóm Đình, Xã Nam Tiến, Pho Yen Town