Dau Tu Phat Trien Nha Khoa Hai Yen LTD Address: No 9, Nha Trang Lane, An Hien Hamlet, Quang Bi Commune, Ha Noi City, Viet Nam, Ha Noi City Enterprise code: 0111133118 Phone: 02585987999 Representative: Nguyen Dac Dung Ha Noi CityFounding date: 21 - 7 - 2025