Exhibit A Joint Filing Agreement
Exhibit A
We, the undersigned, hereby express our agreement that the attached Schedule 13G, and any
amendments thereto, is filed jointly on behalf of each of us pursuant to Rule 13d-1(k) of the
Exchange Act.
Dated as of: February 11, 2010.
| XXXXX X. XXXXXX | ||||||
| /s/ Xxxxx X. XxXxx | ||||||
| U.S. GLOBAL INVESTORS, INC. | ||||||
| By: | Xxxxx X. XxXxx | |||||
| President, General Counsel | ||||||
| /s/ Xxxxx X. XxXxx | ||||||
| (Signature) | ||||||
