Do Dac Khao Sat Va Thuong Mai Ha Noi LTD Address: Hamlet 8, Yen So Commune, Hoai Duc District, Ha Noi City Enterprise code: 0107572641 Phone: 02433661988 Representative: Nguyen Thi Xuyen Adress: Hamlet 8, Yen So Commune, Hoai Duc District, Ha Noi City Yen So Commune, Hoai Duc District, Ha Noi CityFounding date: 22 - 9 - 2016