Tu Van Thiet Ke Cong Trinh Dien Ha Noi 1 LTD Address: Hamlet 3, Dong Nhan Hamlet, An Khanh Commune, Hoai Duc District, Ha Noi City Enterprise code: 0111406799 Phone: 0979740392 Representative: Nguyen Van Trung An Khanh Commune, Hoai Duc District, Ha Noi CityFounding date: 10 - 3 - 2026