Dau Tu Vat Lieu Xay Dung Nam Son Joint Stock Company Address: Ha Hamlet, Lien Trung Commune, Dan Phuong District, Ha Noi City Enterprise code: 0106056690 Phone: 02433255465 Representative: Ta Thi Thoa Adress: Lieu Hamlet, Thai Son Commune, Ham Yen District, Tuyen Quang Province Lien Trung Commune, Dan Phuong District, Ha Noi CityFounding date: 10 - 12 - 2012