Phat Trien Thuong Mai Va Dich Vu Tan Ha An Joint Stock Company Address: No 94, Lang Street, Nga Tu So Ward, Dong Da District, Ha Noi City Enterprise code: 0102188431 Phone: 02435624936 Representative: Nguyen Hai Ha Nga Tu So Ward, Dong Da District, Ha Noi CityFounding date: 22 - 3 - 2007