Dau Tu Va Xay Dung Htci LTD Address: 4th Floor, Sannam Building, No 78 Duy Tan, Cau Giay Ward, Cau Giay District, Ha Noi City Enterprise code: 0111411679 Phone: 0981314121; Representative: Truong Thi Tam Cau Giay Ward, Cau Giay District, Ha Noi CityFounding date: 13 - 3 - 2026