As of December 31, 2013, the following are the outstanding warrants to purchase shares of the Company's common stock:
| Number of | Exercise | ||||||
| Warrants | Price | Expiration Date | |||||
| 1,125,000 | $ | 2.10 | May 21, 2018 | ||||
| 1,125,000 | $ | 1.40 | May 21, 2018 | ||||
| 125,000 | $ | 2.10 | July 26, 2018 | ||||
| 125,000 | $ | 1.40 | July 26, 2018 | ||||
| 2,500,000 | |||||||