Jinchuan Group co.,ltd. agreed to acquire 25% stake in Nimu Copper Development Co., Ltd. from Tibet Mineral Development Co. Ltd. (SZSE:000762) on July 26, 2012. Jinchuan Group and Tibet Mineral will determine the purchase price after due diligence and feasibility study report for Phase-II of Tinggog copper mine are finished. The task is expected to be finished at the end of September 2012.