Dau Tu - Vien Thong Sky Joint Stock Company Address: 69 Ba Trieu, Nguyen Du Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0102740941 Phone: 02439448449 Representative: Pham Hai Dang Adress: E5 F210, Bach Khoa Town, Bach Khoa Ward, Hai Ba Trung District, Ha Noi City Nguyen Du Ward, Hai Ba Trung District, Ha Noi CityFounding date: 12 - 5 - 2008