Dau Tu Va Xay Dung Hoang Ha Joint Stock Company Address: Hamlet 2, Hung Son Commune, Dai Tu District, Thai Nguyen Province Enterprise code: 4600346663 Phone: 0913815311 Representative: Pham Khac Hoa Adress: Hamlet 2, Hung Son Commune, Dai Tu District, Thai Nguyen Province Hung Son Commune, Dai Tu District, Thai Nguyen ProvinceFounding date: 29 - 12 - 2003