Nam Trieu Company Limited

Đường Trần Hưng Đạo, Thị trấn Nam Sách, Nam Sach District

Vinh Ly Company Limited

Thôn An Xá, Xã Quốc Tuấn, Nam Sach District

Son Thuy Company Limited

Thôn An Xá, Xã Quốc Tuấn, Nam Sach District

Pvr VietNam Joint Stock Company

Đường 37, Xã Đồng Lạc, Nam Sach District

Thien Tan Services And Trading Production Company Limited

Thôn An Thường, Xã Nam Chính, Nam Sach District