Khai Thac Khoang San Tan Thanh LTD Address: Tieu Khu Lam Son, Kien Khe Town, Thanh Liem District, Ha Nam Province Enterprise code: 0700857978 Phone: 0931628999 Representative: Chu Van Quynh Kien Khe Town, Thanh Liem District, Ha Nam ProvinceFounding date: 21 - 12 - 2021