| Schedule of Warrants outstanding and exercisable by price range |
| | Outstanding Warrants | | | Exercisable Warrants | | | Exercise Price | | Number | | Weighted Average Remaining Contractual Life in Years | | | Exercise Price | | Number | | Weighted Average Exercise Price | | | | | | | | | | | | | | | | $ | 0.05 | | 1,250,000 | | 2.95 | | $ | 0.05 | | 1,250,000 | $ | 0.05 | | | 0.06 | | 16,050,000 | | 3.84 | | | 0.06 | | 16,050,000 | | 0.06 | | | 0.07 | | 3,000,000 | | 3.95 | | | 0.07 | | 3,000,000 | | 0.07 | | | 0.08 | | 34,612,227 | | 3.24 | | | 0.08 | | 34,612,227 | | 0.08 | | | 0.09 | | 775,000 | | 2.71 | | | 0.09 | | 775,000 | | 0.09 | | | 0.10 | | 101,608,704 | | 4.17 | | | 0.10 | | 99,203,704 | | 0.10 | | | 0.11 | | 2,550,000 | | 4.67 | | | 0.11 | | 1,970,203 | | 0.11 | | | 0.12 | | 100,000 | | 3.37 | | | 0.12 | | 100,000 | | 0.12 | | | 0.14 | | 2,550,000 | | 4.92 | | | 0.14 | | 2,550,000 | | 0.14 | | | 0.15 | | 1,356,667 | | 0.95 | | | 0.15 | | 1,356,667 | | 0.15 | | | 0.17 | | 50,000 | | 0.50 | | | 0.17 | | 50,000 | | 0.17 | | | 0.19 | | 50,000 | | 0.62 | | | 0.19 | | 50,000 | | 0.19 | | | 0.25 | | 50,000 | | 0.13 | | | 0.25 | | 50,000 | | 0.25 | | | 0.30 | | 250,000 | | 0.18 | | | 0.30 | | 250,000 | | 0.30 | | | | | 164,252,598 | | 4.13 | | | | | 161,267,801 | $ | 0.09 |
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