Why was the symbol reinstated? SECURITY ADDITIONS DL Date Symbol Company Name Effective Date OATS Reportable Flag Comments 3/15/2010 RIOAF Rio Alto Mining Limited Common Shares (Canada) 3/16/2010 Y Symbol Reinstated** http://www.otcbb.com/asp/dailylist_search.asp?DirectSymbol=RIOAF&OTCBB=ALL