Ky Thuat He Thong Cong Trinh HQ LTD Address: No 4, Lane 207/135/10, Xuan Dinh Street, Xuan Dinh Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0109787089 Phone: 0983680796 Representative: Vu Van Hung Xuan Dinh Ward, Bac Tu Liem District, Ha Noi CityFounding date: 21 - 10 - 2021