Cong Nghe Dia Chat, Dia Ky Thuat Joint Stock Company Address: 2nd Floor So Nha 56, Phan Dinh Phung Street, Xa, Dan Phuong District, Ha Noi City Enterprise code: 0111484814 Phone: 0902981980 Representative: Dao Khac Toan Dan Phuong Commune, Dan Phuong District, Ha Noi CityFounding date: 5 - 5 - 2026