C4i Joint Stock Company Address: 20 A-B19, 1 Nghia Tan Lane, TDP 4, Nghia Tan Ward, Cau Giay District, Ha Noi City Enterprise code: 0110042771 Phone: 0941483188 Representative: Tran Van Ha Adress: 20 A-B19, 1 Nghia Tan Lane, TDP 4, Nghia Tan Ward, Cau Giay District, Ha Noi City Nghia Tan Ward, Cau Giay District, Ha Noi CityFounding date: 27 - 6 - 2022