Thuong Mai Va Dich Vu Ky Thuat TTH Viet Nam Joint Stock Company Address: No 23, Lane 80, Kham Thien Market Street, Trung Phung Ward, Dong Da District, Ha Noi City Enterprise code: 0105624693 Phone: 0936044521 Representative: Hoang Khac Thang Adress: Thai Nguyen Hamlet, Thai Hoa Commune, Trieu Son District, Thanh Hoa Province Trung Phung Ward, Dong Da District, Ha Noi CityFounding date: 9 - 11 - 2011