Xay Dung Hoang Quan Viet Nam LTD Address: Yen Kien Hamlet, Phu Nghia Commune, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111537618 Phone: 0969010178 Representative: Do Van Quan Phu Nghia Commune, Cau Giay District, Ha Noi CityFounding date: 15 - 6 - 2026