Cong Nghe Va Truyen Thong Bien Xanh Joint Stock Company Address: No 91 Trung Kinh, Civil Group 1, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101543958 Phone: 0247672210 Representative: Hoang Thanh Cuong Adress: P406- D11, Civil Group 4, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 20 - 10 - 2004