Viettech Viet Nam Joint Stock Company Address: 28 Mac Dinh Chi, Da Kao Ward, District 1, Ho Chi Minh City Enterprise code: 0312622084 Phone: 0903801469 Representative: Pham Manh Khuong Adress: 49, Street 245, Tan Phu Ward, District 9, Ho Chi Minh City Da Kao Ward, District 1, Ho Chi Minh CityFounding date: 13 - 1 - 2014