Exhibit 99.1
JOINT FILING AGREEMENT
The undersigned acknowledge and agree that the foregoing Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this Statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.
Dated: January 7, 2010
TONGLING NONFERROUS METALS GROUP HOLDINGS CO., LTD. | ||||
By: | /s/ Dongqing LI | |||
Name: | Dongqing LI | |||
Title: | Chief Engineer | |||
CHINA RAILWAY CONSTRUCTION CORPORATION LIMITED | ||||
By: | /s/ Zhiliang ZHOU | |||
Name: | Zhiliang ZHOU | |||
Title: | Company Vice President | |||
CRCC-TONGGUAN INVESTMENT CO., LTD. | ||||
By: | /s/ Shouhua JIN | |||
Name: | Shouhua JIN | |||
Title: | Chairman | |||