Dau Tu & Thuong Mai Ky Nguyen Xanh Xxi LTD Address: No 44, Hue Street, Cua Nam Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111563745 Phone: 0944715158 Representative: Nguyen Hoang Minh Cua Nam Ward, Hoan Kiem District, Ha Noi CityFounding date: 8 - 7 - 2026