Income Taxes (Tables)
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12 Months Ended |
Dec. 31, 2025 |
| Income Taxes |
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| Schedule of Group's profit before income taxes |
| | | | | | | | | | | For the years ended December 31, | | | 2023 | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | RMB | | US$ | Non-PRC | | (1,495,542) | | 6,375,022 | | (6,121,113) | | (875,308) | PRC | | 73,371,990 | | 126,326,271 | | 125,696,408 | | 17,974,348 | | | 71,876,448 | | 132,701,293 | | 119,575,295 | | 17,099,040 |
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| Schedule of income taxes |
| | | | | | | | | | | For the years ended December 31, | | | 2023 | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | RMB | | US$ | Current income tax | | 11,048,804 | | 20,044,605 | | 21,914,684 | | 3,133,758 | Deferred income tax expense/(benefit) | | 801,100 | | 222,176 | | (181,928) | | (26,015) | | | 11,849,904 | | 20,266,781 | | 21,732,756 | | 3,107,743 |
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| Schedule of reconciliation of difference between the mainland China statutory income tax rate and the Group's effective income tax rate |
| | | | | | | For the years ended December 31, | | | 2023 | | 2024 | Statutory income tax rate | | 25.0% | | 25.0% | Tax effect of different tax rates in different jurisdictions | | (4.4)% | | (6.6)% | Tax effect of preferential tax rates | | (4.2)% | | (2.7)% | Tax effect of non-deductible expenses | | 0.4% | | 0.1% | Tax effect of non-taxable income | | (0.0)% | | (0.1)% | Tax effect of tax rate changes on deferred taxes | | 0.2% | | 0.2% | Tax effect of additional deduction of research and development expenses | | (1.0)% | | (0.5)% | Change in valuation allowance | | 0.5% | | (0.1)% | Effective tax rate | | 16.5% | | 15.3% |
| | | | | | | | | For the year ended December 31, 2025 | | | RMB | | US$ | | percent | | | | | | | | Income tax computed at the statutory income tax rate | | 29,893,824 | | 4,274,760 | | 25.0% | Foreign tax effects | | | | | | | --Cayman | | | | | | | Statutory tax rate difference | | 1,984,409 | | 283,767 | | 1.7% | --Other foreign jurisdictions | | (151,369) | | (21,645) | | (0.1)% | Preferential tax rate | | (9,598,681) | | (1,372,593) | | (8.0)% | Non-deductible expenses | | 421,856 | | 60,325 | | 0.4% | Non-taxable income | | | | | | | --Interest and investment income, net | | (3,308,795) | | (473,152) | | (2.8)% | Others | | 662,187 | | 94,691 | | 0.5% | Change in valuation allowance | | 1,829,325 | | 261,590 | | 1.5% | Income tax expenses | | 21,732,756 | | 3,107,743 | | 18.2% |
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| Schedule of significant components of the Group's deferred tax assets |
| | | | | | | | | As of December 31, | | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | US$ | Deferred tax assets | | | | | | | Tax losses carried forward | | 677,299 | | 571,051 | | 81,659 | Accrued expenses | | — | | 1,991,217 | | 284,740 | Others | | 196,342 | | 304,707 | | 43,573 | Less: valuation allowance | | (715,258) | | (2,545,501) | | (364,002) | Total deferred tax assets | | 158,383 | | 321,474 | | 45,970 | Total deferred tax liabilities | | (249,159) | | (191,366) | | (27,365) |
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