Duong Minh Quan Address: Hamlet 2, Hung Son Commune, Dai Tu District, Thai Nguyen Province Enterprise code: 4600976337 Phone: 0912061170 Representative: Duong Van Dang Adress: Dinh Xa Hamlet, Van Tu Commune, Thuong Tin District, Ha Noi City Hung Son Commune, Dai Tu District, Thai Nguyen ProvinceFounding date: 25 - 8 - 2011