Khai Khoang Va Vat Lieu Xay Dung Cao Bang Joint Stock Company Address: 42a, Civil Group 10, Song Hien Ward, Cao Bang City, Cao Bang Province Enterprise code: 4800933041 Phone: 0819498333 Representative: Nguyen Kim Que Adress: Civil Group 8, Xuan Phuong Ward, Nam Tu Liem District, Ha Noi City Song Hien Ward, Cao Bang City, Cao Bang ProvinceFounding date: 12 - 3 - 2023