Big-Tek LTD Address: No 51, Lane 158/124, Ngoc Ha Street, Ngoc Ha Ward, Ba Dinh District, Ha Noi City Enterprise code: 0109528493 Phone: 0919848987 Representative: Nguyen Hoang Tung Ngoc Ha Ward, Ba Dinh District, Ha Noi CityFounding date: 22 - 2 - 2021