Ky Thuat Va Dich Vu Mat Dat Viet Nam Joint Stock Company Address: No 4, Alley 37/35, Lane 37, Dai Dong Street, Vinh Hung Ward, Hoang Mai District, Ha Noi City Enterprise code: 0111415715 Phone: 0332636178 Representative: Chu Viet Ha Vinh Hung Ward, Hoang Mai District, Ha Noi CityFounding date: 16 - 3 - 2026