4stech Joint Stock Company Address: 575/31/25B Cach Mang Thang 8, Ward 15, District 10, Ho Chi Minh City Enterprise code: 0314257493 Phone: 02967167029 Representative: Ngo Anh Tho Ward 15, District 10, Ho Chi Minh CityFounding date: 1 - 3 - 2017