Sao Ngoc Joint Stock Company Address: No 5 Nguyen Thuong Hien, Nguyen Du Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101394720 Phone: 0249351021 Representative: Tran Thi Minh Hang Adress: No 130 Hang Bong, Hang Bong Ward, Hoan Kiem District, Ha Noi City Nguyen Du Ward, Hai Ba Trung District, Ha Noi CityFounding date: 22 - 8 - 2003