Kinh Doanh Vang Bac Da Quy Ngoc Chau LTD Address: Hamlet 10, Phuong Cach 3 Hamlet, Xa, Quoc Oai District, Ha Noi City Enterprise code: 0111399196 Phone: 0986021792; 0986020945 Representative: Bui Thi Hang Quoc Oai Commune, Quoc Oai District, Ha Noi CityFounding date: 4 - 3 - 2026