Tu Van Va Dau Tu Phat Trien Vien Thong Tan Ngoc Ngan LTD Address: Da Phuc Hamlet, Sai Son Commune, Quoc Oai District, Ha Noi City Enterprise code: 0107312474 Phone: 0936293686 Representative: Phan The Tuan Adress: Da Phuc Hamlet, Sai Son Commune, Quoc Oai District, Ha Noi City Sai Son Commune, Quoc Oai District, Ha Noi CityFounding date: 25 - 1 - 2016