He Thong Ky Thuat Minh An LTD Address: No 4, Alley 91/1, Lane 54, Ngoc Hoi Street, Hoang Liet Ward, Hoang Mai District, Ha Noi City Enterprise code: 0111415708 Phone: 0979366190 Representative: Tran Thi Thu Trang Hoang Liet Ward, Hoang Mai District, Ha Noi CityFounding date: 16 - 3 - 2026