Dau Tu Xay Dung Thien Son Joint Stock Company Address: Nha Ong Hoang Cao Son, Giua Hamlet, Phu Loc Commune, Hau Loc District, Thanh Hoa Province Enterprise code: 2800277910 Phone: 02373831026 Representative: Hoang Cao Son Adress: A Phu Loc, Phu Loc Commune, Hau Loc District, Thanh Hoa Province Phu Loc Commune, Hau Loc District, Thanh Hoa ProvinceFounding date: 25 - 9 - 1998