ADVENT TECHNOLOGIES HOLDINGS, INC.ADN
| Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net loss | 307,638 | 3 | -993,853 | -20,523,342 | -74 | -71 | -41 |
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| Income (loss) from discontinued operations | - | - | - | - | - | - | -11 |
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| Net loss from continuing operations | - | - | - | - | - | - | -30 |
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| Depreciation of property and equipment | - | - | - | 1 | 1 | 3 | 2 |
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| Amortization of intangible assets | - | - | - | 1 | 3 | 1 | 0 |
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| Impairment losses | - | - | - | - | 39 | 13 | - |
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| Credit loss allowance | - | - | - | - | - | -1 | -4 |
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| Provision for litigation expenses | - | - | - | - | - | - | 5 |
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| Fair value change of warrant liability | - | - | - | -22,743,057 | -9 | -0 | -0 |
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| Stock-based compensation expense | - | - | - | 8 | 10 | 10 | 4 |
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| Issuance of commitment shares | - | - | - | 13,375 | - | 1 | - |
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| Benefit for current and deferred income taxes | - | - | - | -922,510 | -2 | 1 | -0 |
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| Net losses on disposal/write-offs of property, plant and equipment and intangible assets | - | - | - | -8,692 | -0 | -0 | -6 |
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| Provision for inventories | - | - | - | - | - | 12 | -0 |
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| Net periodic cost of defined benefit obligation | - | - | - | 5,354 | 0 | 0 | 0 |
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| Decrease/(increase) in accounts receivable | - | - | - | -940,062 | -2 | -1 | -1 |
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| Decrease/(increase) in contract assets | - | - | - | 1 | -1 | 0 | 1 |
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| Decrease/(increase) in inventories | - | - | - | 2 | 6 | 2 | -0 |
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| Decrease/(increase) in prepaid expenses and other current assets | 129,825 | -72,716 | 296,850 | 5 | -2 | 0 | -0 |
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| Decrease/(increase) in other non-current assets | - | - | - | 197,643 | 0 | -6 | 2 |
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| (Decrease)/increase in trade payables | - | - | - | 3 | -0 | -5 | 10 |
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| (Decrease)/increase in due to related parties | - | - | - | - | - | - | -0 |
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| (Decrease)/increase in deferred income from grants | - | - | - | -563,185 | 1 | -0 | -0 |
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| Increase in loss contingency liability | - | - | - | - | - | - | 0 |
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| (Decrease)/increase in contract liabilities | - | - | - | 36,754 | -0 | 1 | 3 |
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| (Decrease)/increase in other current liabilities | - | - | - | 5 | -6 | -2 | 1 |
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| (Decrease) in income tax payable | - | - | - | 9,773 | -0 | -0 | - |
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| (Decrease) in other long-term liabilities | - | - | - | -275,694 | -0 | -0 | - |
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| Operating lease asset and liabilities | - | - | - | - | - | -1 | -0 |
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| Net cash provided by/(used in) operating activities from continuing operations | -114,098 | -630,914 | -3,200,574 | -35,837,000 | -32 | -32 | 1 |
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| Proceeds from sale of property and equipment | - | - | - | 6,970 | - | 0 | 1 |
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| Purchases of property and equipment | - | - | - | 4 | 12 | 3 | 0 |
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| Purchases of intangible assets | - | - | - | 17,747 | 0 | - | 0 |
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| Advances for the acquisition of property and equipment | - | - | - | 2 | 3 | 1 | - |
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| Acquisition of subsidiaries | - | - | - | 19 | - | 2 | - |
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| Net cash provided by/(used in) investing activities from continuing operations | -220,520,770 | 265,057 | 133 | -25,556,783 | -15 | -6 | 1 |
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| Issuance of common stock and paid-in capital, net of issuance costs paid | - | - | - | 262,177 | - | 9 | 0 |
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| Proceeds from borrowings | - | - | - | - | - | - | 1 |
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| Repayments of debt | - | - | - | - | 0 | - | 0 |
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| Net cash provided by financing activities from continuing operations | 222 | - | -130,224,788 | 142 | -0 | 9 | 1 |
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| Net increase/(decrease) in cash, cash equivalents, restricted cash and restricted cash equivalents from continuing operations | - | -365,857 | -495,477 | - | - | - | 3 |
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| Effect of exchange rate changes on cash, cash equivalent, restricted cash and restricted cash equivalents | - | - | - | - | 1 | 0 | 0 |
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| Cash used in operating activities | - | - | - | - | - | - | -8 |
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| Cash used in investing activities | - | - | - | - | - | - | -0 |
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| Cash provided by financing activities | - | - | - | - | - | - | 1 |
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| Net cash used in discontinued operations | - | - | - | - | - | - | -8 |
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| Net decrease in cash, cash equivalents, restricted cash and restricted cash equivalents | - | - | - | 80 | -47 | -29 | -4 |
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| Interest paid | - | - | - | 12,433 | 0 | 0 | 0 |
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| Income taxes paid/(refunded) | - | - | - | - | - | -0 | -0 |
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