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v3.25.1

Accounts receivable, net (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2021
--- | --- | --- | ---
Accounts receivable, net |  |  |
Trade accounts receivable | $ 39,986,234 | $ 38,446,554 |
Receivable from OC-BVI | 42,515 | 41,129 |
Other accounts receivable | 373,655 | 322,609 |
Accounts receivable, gross, current | 40,402,404 | 38,810,292 |
Allowance for credit losses | (821,422) | (583,401) | $ (183,214)
Accounts receivable, net | $ 39,580,982 | $ 38,226,891 |

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