Hoang Thinh Smart Tech LTD Address: 1st Floor Nha N04, Khu Dat Dau Gia Xen Ket Nho Le, Yen Nguu Hamlet, 7B Hamlet, Dai Thanh Commune, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111504789 Phone: 0976955490 Representative: Hoang Xuan Truyen Dai Thanh Commune, Hoang Mai District, Ha Noi CityFounding date: 19 - 5 - 2026