Ky Thuat Tong Hop Thanh Cong Joint Stock Company Address: A12a Dam Trau, Bach Dang Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101893487 Phone: 0249841643 Representative: Nguyen Long Thanh Adress: No 79, Nguyen Hoang Ton Street, Phuong Xuan La, Tay Ho District, Ha Noi City Bach Dang Ward, Hai Ba Trung District, Ha Noi CityFounding date: 20 - 3 - 2006