Khao Sat Do Dac Va Xay Dung Thang Long LTD Address: Noi Hamlet, Son Dong Commune, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111643849 Phone: 0906195540 Representative: Nguyen Doan Cuong Son Dong Commune, Dan Phuong District, Ha Noi CityFounding date: 29 - 9 - 2026