Hoang Khai Company Limited
Xóm Hồ, Xã Hoàng Khai, Yen Son District
Trung Hoa Trung Company Limited
Thôn Trại Đát, Xã Tuân Lộ, Son Duong District
Tuyen Quang High – Tech Dairy Farm Company Limited
Số 4, đường 17/8, tổ 15, Phường Minh Xuân, Tuyen Quang City
Ho Toan Joint Stock Company
Thôn Yên Phú, Xã An Tường, Tuyen Quang City
International Agriculture Investment and Development Joint Stock Company
Số nhà 124, đường Minh Thanh, tổ 25, Phường Tân Hà, Tuyen Quang City