Hop Tac Xa Nha O Lang Quoc Te Thang Long Address: 1st Floor, Nha B5, Quoc Te Thang Long Village, Dich Vong Ward, Cau Giay District, Ha Noi City Enterprise code: 0105361236 Phone: 02437569504 Representative: Le Thi Dung Adress: Civil Group 87, Dich Vong Ward, Cau Giay District, Ha Noi City Dich Vong Ward, Cau Giay District, Ha Noi CityFounding date: 14 - 6 - 2011