Xay Dung Va Thuong Mai Tong Hop Truong Son LTD Address: Son Trung Hamlet, Bac Son Town, Pho Yen Town, Thai Nguyen Province Enterprise code: 4600781419 Phone: 02083856027 Representative: Lieu Truong Son Adress: Chang Hamlet, Phuc Thuan Commune, Pho Yen Town, Thai Nguyen Province Bac Son Town, Pho Yen City, Thai Nguyen ProvinceFounding date: 8 - 12 - 2009