Cong Nghe PTC Joint Stock Company Address: 167 Ngoc Khanh, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Enterprise code: 0102368113 Phone: 0245737915 Representative: Duong Thuy Linh Adress: No 199 Civil Group 30, Phuong Lien Ward, Dong Da District, Ha Noi City Ngoc Khanh Ward, Ba Dinh District, Ha Noi CityFounding date: 20 - 9 - 2007