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v3.25.3

Summary of Significant Accounting Policies - Assets and liabilities of consolidated VIEs (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Assets |  |  |
Cash | $ 939,415 | $ 371,497 |
Inventories | 4,255,117 | 4,591,902 |
Total current assets | 9,552,686 | 9,275,117 |
Property and equipment, net | 666,590 | 613,958 |
Intangible assets, net | 1,103,048 | 1,062,766 |
Goodwill | 96,000 | 0 | $ 0
Security deposit, long-term | 64,943 | 15,687 |
Total assets | 16,755,481 | 16,797,812 |
Liabilities |  |  |
Accounts payable/ Intercompany payable | 2,944,507 | 1,882,357 |
Total liabilities | 18,673,958 | 18,087,459 |
Variable Interest Entity | Levo Mobility LLC |  |  |
Assets |  |  |
Cash | 2,937 | 10,404 |
Inventories | 183,219 | 0 |
Intercompany loan receivable | 0 | 930,019 |
Prepaid expenses and other current assets | 117,279 | 52,190 |
Total current assets | 303,435 | 992,613 |
Property and equipment, net | 79,000 | 0 |
Intangible assets, net | 149,000 | 0 |
Goodwill | 96,000 | 0 |
Intercompany receivable | 2,482,005 | 0 |
Security deposit, long-term | 18,489 | 0 |
Total assets | 3,127,929 | 992,613 |
Liabilities |  |  |
Accrued expenses and dividend payable | 33,594 | 0 |
Promissory notes | 1,754,391 | 884,676 |
Total liabilities | 3,344,874 | 1,051,357 |
Variable Interest Entity | Levo Mobility LLC | Nonrelated Party |  |  |
Liabilities |  |  |
Accounts payable/ Intercompany payable | 37,397 | 166,681 |
Variable Interest Entity | Levo Mobility LLC | Related Party |  |  |
Liabilities |  |  |
Accounts payable/ Intercompany payable | $ 1,519,492 | $ 0 |

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