Tu Van Va Phat Trien Osa Joint Stock Company Address: No 9B, Lane 351, Au Co Street, Nhat Tan Ward, Tay Ho District, Ha Noi City Enterprise code: 0108270788 Phone: 0912248068 Nhat Tan Ward, Tay Ho District, Ha Noi CityFounding date: 15 - 5 - 2018