| Accrued expenses and other current liabilities |
6. Accrued expenses and other current liabilities Accrued expenses and other current liabilities consist of the following: | | | As of | | | | | June 30, 2025 | | | December 31, 2025 | | | | | RMB | | | RMB | | | | | | | | (Unaudited) | | | Deferred offering costs in accrued expenses and other current liabilities | | | 4,984,502 | | | | 941,235 | | | Accrued payroll and welfare | | | 880,796 | | | | 885,374 | | | Borrowing from third parties (1) | | | 1,128,816 | | | | 1,221,421 | | | Other tax payable | | | 2,156,194 | | | | 2,041,773 | | | Others (2) | | | 335,352 | | | | 286,333 | | | Total accrued expenses and other current liabilities | | | 9,485,660 | | | | 5,376,136 | | | (1) | Borrowings from third parties are to supplement working capital for project bidding and these borrowings are usually settled in a short time. | | (2) | Others is mainly composed of personal social security costs payable. |
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| 8. | Accrued expenses and other current liabilities | Accrued expenses and other current liabilities consisted of the following: | | | As of June 30, | | | | | 2024 | | | 2025 | | | | | RMB | | | RMB | | | Deferred offering costs in accrued expenses and other current liabilities | | | 2,701,406 | | | | 4,984,502 | | | Accrued payroll and welfare | | | 680,682 | | | | 880,796 | | | Borrowing from third parties (1) | | | 647,463 | | | | 1,128,816 | | | Other tax payable | | | 389,319 | | | | 2,156,194 | | | Others (2) | | | 420,761 | | | | 335,352 | | | Total accrued expenses and other current liabilities | | | 4,839,631 | | | | 9,485,660 | | | (1) | Borrowings from third parties were to supplement working capital for project bidding and these borrowings are usually settled in a short time. | | (2) | Others were mainly composed of personal social security costs payable. |
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