Kien Truc Quan Son Joint Stock Company Address: No 15, Day A, Boi Noi Vu Town, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0102130287 Phone: 0912281231 Representative: Chu Thanh Son Adress: No 1/29 Nguyen Chi Thanh, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 5 - 1 - 2007