Cong Nghe Khai Hoan Solutions LTD Address: No 135, Ngo Thi Sy Street, TDP Hong Phong, Phuong, Ha Dong District, Ha Noi City Enterprise code: 0111191448 Phone: (0203) 4821997 Representative: Le Khai Hoan Ha Noi CityFounding date: 22 - 8 - 2025