Ptech Viet Nam Joint Stock Company Address: No 82, 3 Bang A Civil Group, Hoang Liet Ward, Hoang Mai District, Ha Noi City Enterprise code: 0106921586 Phone: 02466802727 Representative: Tran Thi Trang Adress: Tao Duong Hamlet, Hong Duong Commune, Thanh Oai District, Ha Noi City Hoang Liet Ward, Hoang Mai District, Ha Noi CityFounding date: 31 - 7 - 2015