Son Master Joint Stock Company Address: No 33 Le Van Huu, Ngo Thi Nham Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101035947 Phone: 0249432575 Representative: Pham Quang Duc Adress: 41a Dai La, Hai Ba Trung District, Ha Noi City Ngo Thi Nham Ward, Hai Ba Trung District, Ha Noi CityFounding date: 18 - 7 - 2000