Khai Khoang Viet Trung Joint Stock Company Address: No 109, Binh Thuan Street, Civil Group 30, Tan Quang Ward, Tuyen Quang City, Tuyen Quang Province Enterprise code: 5000865482 Phone: 0974026322 Representative: Vu Van Kien Adress: Tan Thinh Hamlet, Hop Thinh Commune, Ky Son District, Hoa Binh Province Tan Quang Ward, Tuyen Quang City, Tuyen Quang ProvinceFounding date: 29 - 3 - 2019