Sierra Technology LTD Address: 19/22 Dong Hung Thuan 31, Tan Hung Thuan Ward, District 12, Ho Chi Minh City Enterprise code: 0317377742 Phone: 02386008919 Representative: Van Thanh Tinh Tan Hung Thuan Ward, District 12, Ho Chi Minh CityFounding date: 8 - 7 - 2022