Exhibit 12.1
Computation of Ratio of Earnings to Fixed Charges
| Year Ended December 31, | Six Months Ended | |||||||||||||||||||
| 2014 | 2015 | 2016 | 2017 | June 30, 2018 | ||||||||||||||||
Determination of earnings | ||||||||||||||||||||
Income (loss) before income taxes | (45,603,110 | ) | (27,561,702 | ) | (45,817,394 | ) | (49,376,875 | ) | (25,741,828 | ) | ||||||||||
Fixed Charges | — | — | — | — | — | |||||||||||||||
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Total income (loss) | $ | (45,603,110 | ) | $ | (27,561,702 | ) | $ | (45,817,394 | ) | $ | (49,376,875 | ) | $ | (25,741,828 | ) | |||||
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Fixed charges: | ||||||||||||||||||||
N/A | — | — | — | — | — | |||||||||||||||
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Total fixed charges | — | — | — | — | — | |||||||||||||||
Ratio of earnings to fixed charges | N/A | N/A | N/A | N/A | N/A | |||||||||||||||
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(Deficiency) excess of earnings to cover fixed charges | $ | (45,603,110 | ) | $ | (27,561,702 | ) | $ | (45,817,394 | ) | $ | (49,376,875 | ) | $ | (25,741,828 | ) | |||||
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