Thienbinh Construction Company Limited
Thôn La Vang 2, Xã Quảng Sơn, Ninh Son District
Quoc An Construction Limited Company
Thôn Hạnh Trí 1, Xã Quảng Sơn, Ninh Son District
Thuan Binh Construction Design Consultant Company Limited
Khu phố 7, Thị trấn Tân Sơn, Ninh Son District
Hoang Giang Khang TM Mechanical – Construction Company Limited
QL27, Thôn Hạnh Trí 2, Xã Quảng Sơn, Ninh Son District
King Joint Stock Company.
Thôn Lâm Quý, Xã Lâm Sơn, Ninh Son District