Dau Tu Va Xay Dung Hoang Lien Son Joint Stock Company Address: 36B Civil Group, Hong Ha Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200273067 Phone: 0216864511 Representative: Pham Thanh Tu Adress: Hoa Binh Street, Hong Ha Ward, Yen Bai City, Yen Bai Province Hong Ha Ward, Yen Bai City, Yen Bai ProvinceFounding date: 3 - 5 - 2007