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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Cash Flows from Operating Activities: |  |
Net loss | $ (19,686,232) | $ (12,827,343)
Reconciliation of net loss to net cash used in operating activities: |  |
Depreciation and amortization | 1,032,971 | 124,627
Changes in fair value of warrant liabilities | 0 | (31,000)
Stock-based compensation | 3,029,125 | 2,705,365
Amortization on right-of-use assets | 504,232 | 96,973
Changes in operating assets and liabilities: |  |
Prepaid expenses and deposits | (743,876) | (1,106,072)
Other receivables | 1,000,273 | 52,749
Accounts payable and accrued expenses | (912,067) | 2,770,341
Lease liability | (130,503) | (187,068)
Net cash used in operating activities | (15,906,077) | (8,401,428)
Cash Flows from Investing Activities: |  |
Purchase of property and equipment | (780,716) | (1,299,193)
Purchase of Construction in Progress | 0 | (2,629,141)
Net cash used in investing activities | (780,716) | (3,928,334)
Cash Flows from Financing Activities: |  |
Proceeds from issuance of common stock, net | 52,552,758 | 0
Proceeds from exercise of warrants | 0 | 550,000
Proceeds from exercise of stock options | 3,087 | 0
Net cash provided by financing activities | 52,555,845 | 550,000
Net increase (decrease) in cash | 35,869,052 | (11,779,762)
Cash and cash equivalents at beginning of the period | 21,352,382 | 43,903,949
Cash and cash equivalents at end of the period | 57,221,434 | 32,124,187
Supplemental schedule of non-cash financing activities: |  |
Reclassifications between construction in progress and fixed assets | 6,789,098 | 0
Issuance of common stock as commitment fee for future financing | 0 | 345
Recognition of right-of-use assets and lease liability from new operating lease agreements | $ 0 | $ 9,184,027

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