Dau Tu Anh Em 4B1N Joint Stock Company Address: No 2, Lane 30, Ta Quang Buu Street, Bach Khoa Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0109347264 Phone: 0916569116 Representative: Hoang Van Kien Adress: No 15, Nguyen Thiep, Nguyen Trung Truc Ward, Ba Dinh District, Ha Noi City Bach Khoa Ward, Hai Ba Trung District, Ha Noi CityFounding date: 18 - 9 - 2020