Thuong Mai Dich Vu O To Truong Son LTD Address: Lot 24, Cong Nghiep Yen Nghia Cluster, Yen Nghia Ward, Ha Dong District, Ha Noi City Enterprise code: 0500553108 Phone: 02433514744 Representative: Tran Van Tuan Adress: Tap The Binh Doan 12, Dai Mo Commune, Tu Liem District, Ha Noi City Yen Nghia Ward, Ha Dong District, Ha Noi CityFounding date: 12 - 1 - 2007