| Description | Warrants | Exercise Price |
Remaining Life (Years) |
Exercisable Warrants Remaining | ||||
| Placement agent warrants - Spring 2006 Private Placement | 802,721 | $0.75 | 0.25 | 802,721 | ||||
| Placement agent warrants - Spring 2006 Private Placement | 401,361 | $2.00 | 0.25 | 401,361 | ||||
| Placement agent warrants - July 2006 Private Placement | 419,930 | $1.00 | 0.50 | 419,930 | ||||
| 12% Subordinated Note warrants | 1,190,000 | $0.14 | 1.75 | 1,190,000 | ||||
| Warrants issued in 2010 for services | 150,000 | $0.14 | 2.25 | 150,000 | ||||
| Warrants issued in 2012 for debt financing | 2,435,517 | $0.044 | 4.75 | 2,435,517 | ||||
| 5,399,529 | 5,399,529 |