QTST LTD Address: Ninh Noi Hamlet, Tan Dan Commune, Soc Son District, Ha Noi City Enterprise code: 0108486498 Phone: 0898929292 Representative: Tran Ngoc Son Adress: Cua Trang Hamlet, Tien An Commune, Quang Yen Town, Quang Ninh Province Tan Dan Commune, Soc Son District, Ha Noi CityFounding date: 25 - 10 - 2018