Ong Soi Thuy Tinh Vinaconex Joint Stock Company Address: Khu Cong Nghe Cao Hoa Lac, Phu Cat Commune, Quoc Oai District, Ha Noi City Enterprise code: 0500450977 Phone: 02433947145 Representative: Vuong Anh Dung Adress: Hamlet 9, Huong Ngai Commune, Thach That District, Ha Noi City Phu Cat Commune, Quoc Oai District, Ha Noi CityFounding date: 28 - 6 - 2004