Dau Tu Thuong Mai Va Dich Vu Ngoc Son LTD Address: No 53 Phung Khac Khoan, Quang Trung Ward, Son Tay Town, Ha Noi City Enterprise code: 0105140364 Phone: 02433832660 Representative: Tran Tuan Son Adress: No 180a Thai Thinh, Lang Ha Ward, Dong Da District, Ha Noi City Quang Trung Ward, Son Tay Town, Ha Noi CityFounding date: 25 - 1 - 2011