Platinum Partners Value Arbitrage Fund, LP

• 10% owner at PERFISANS HOLDINGS INC · on record since Feb 10, 2006
• 10% owner at China Cablecom Holdings, Ltd. · on record since Jul 2, 2008
• 10% owner at China Opportunity Acquisition Corp. · on record since Sep 22, 2008
• 10% owner at INDIA FUND INC · on record since Jan 13, 2011
• 10% owner at VIPER POWERSPORTS INC · on record since Jul 10, 2012
• 10% owner at LOOKSMART LTD · on record since Jul 9, 2012
• 10% owner at NEOPROBE CORP · on record since Nov 29, 2012
• 10% owner at SONTRA MEDICAL CORP · on record since Jul 22, 2013
• 10% owner at IMPLANT SCIENCES CORP · on record since Apr 18, 2016
• Not subject to reporting at IMPLANT SCIENCES CORP · on record since Jul 20, 2016