PSD Joint Stock Company Address: No 21 A Doan Nhu Hai, Tran Hung Dao Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101904516 Phone: 0249428346 Representative: Pham Tien Dung Adress: 74 Trieu Viet Vuong P.Bui Thi Xuan, Hai Ba Trung District, Ha Noi City Tran Hung Dao Ward, Hoan Kiem District, Ha Noi CityFounding date: 3 - 4 - 2006