So 1 Phat Trien Toan Cau Joint Stock Company Address: Civil Group 13, Cluster 3, Tu Lien Ward, Tay Ho District, Ha Noi City Enterprise code: 0102622507 Phone: 0982039492 Representative: Le Xuan Hung Adress: No 414 H2, Thanh Cong Town, Thanh Cong Ward, Ba Dinh District, Ha Noi City Tu Lien Ward, Tay Ho District, Ha Noi CityFounding date: 23 - 1 - 2008