Mang Truyen Thong Xanh Joint Stock Company Address: No 3 Hoa Ma, Pham Dinh Ho Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0102032307 Phone: 0904699779 Representative: Nguyen Quang Vu Adress: No 21 Hem 163, Hong Ha Street, Phuc Xa Ward, Ba Dinh District, Ha Noi City Pham Dinh Ho Ward, Hai Ba Trung District, Ha Noi CityFounding date: 21 - 9 - 2006