Ohbau Joint Stock Company Address: No 6, 1a To 1 Lane, Chien Thang Hamlet, Xuan Mai Commune, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111216614 Phone: (0238) 4248930 Representative: Vu Mai Phuong Ha Noi CityFounding date: 15 - 9 - 2025