Thi Cong Xay Dung Efc LTD Address: 9th Floor, 3D Center Building, No 3, Duy Tan Street, Phuong, Cau Giay District, Ha Noi City Enterprise code: 0111583822 Phone: 0326072111 Representative: Phung Duc Thang Cau Giay Ward, Nam Tu Liem District, Ha Noi CityFounding date: 28 - 7 - 2026