Quang Cao Truyen Thong Hoang Nguyen Joint Stock Company Address: 698/8 Truong Chinh, Ward 15, Tan Binh District, Ho Chi Minh City Enterprise code: 0306885663 Phone: 02822437782 Representative: Mai The Chuong Adress: 107 Kim Giang, Civil Group 30, Dai Kim Ward, Hoang Mai District, Ha Noi City Ward 15, Tan Binh District, Ho Chi Minh CityFounding date: 11 - 2 - 2009