Truyen Thong Va Giai Tri Echo Joint Stock Company Address: 5th Floor, No 10 Duong Quang Ham, Quan Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0110006653 Phone: 0988755555 Representative: Nguyen Hung Diep Adress: Hai Yen Hamlet, Hai Trieu Commune, Tien Lu District, Hung Yen Province Quan Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 24 - 5 - 2022