Khai Khoang Da Marble Viet Nam Joint Stock Company Address: No 05 Thanh Cong, Giang Vo Ward, Ba Dinh District, Ha Noi City Enterprise code: 0111421109 Phone: 0983683775 Representative: Vu Trung Kien Giang Vo Ward, Ba Dinh District, Ha Noi CityFounding date: 19 - 3 - 2026