Dau Tu Yen Ngoc LTD Address: No 12, Lane 66, Bui Ngoc Duong Street, Bach Mai Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0111407351 Phone: 0986082738 Representative: Bui Thi Hai Yen Bach Mai Ward, Hai Ba Trung District, Ha Noi CityFounding date: 11 - 3 - 2026