SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT COMPANY (Tables)
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12 Months Ended |
Dec. 31, 2025 |
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| CONDENSED FINANCIAL INFORMATION OF PARENT COMPANY |
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| Schedule of condensed financial information of parent company balance sheets |
| | | | | | | | | As of | | | | | | | December 31, | | As of December 31, | | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | US$ | Assets: | | | | | | | Cash and cash equivalents | | 1,359,623 | | 7,934,940 | | 1,134,681 | Prepaid expenses and other current assets | | 390,721 | | 500,011 | | 71,501 | Amount due from subsidiaries and VIEs | | 910,228,376 | | 324,658,501 | | 46,425,548 | Investments in subsidiaries and VIEs | | 6,286,783,144 | | 7,503,918,049 | | 1,073,046,009 | Total assets | | 7,198,761,864 | | 7,837,011,501 | | 1,120,677,739 | | | | | | | | Liabilities: | | | | | | | Accrued expenses and other current liabilities | | 245,607,222 | | 210,864 | | 30,153 | Total liabilities | | 245,607,222 | | 210,864 | | 30,153 | | | | | | | | Equity: | | | | | | | Common shares | | 206,793 | | 206,793 | | 29,571 | Treasury stock | | (509,643,763) | | (967,773,090) | | (138,389,711) | Additional paid-in capital | | 3,207,028,391 | | 3,256,349,216 | | 465,651,744 | Retained earnings | | 4,174,511,191 | | 5,484,293,291 | | 784,243,511 | Accumulated other comprehensive income | | 81,052,030 | | 63,724,427 | | 9,112,471 | Total equity | | 6,953,154,642 | | 7,836,800,637 | | 1,120,647,586 | Total liabilities and equity | | 7,198,761,864 | | 7,837,011,501 | | 1,120,677,739 |
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| Schedule of condensed financial information of parent company statements of comprehensive income (loss) |
| | | | | | | | | | | Year ended | | Year ended | | | | | | | December 31, | | December 31, | | Year ended December 31, | | | 2023 | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | RMB | | US$ | General and administrative expenses | | (5,899,484) | | (7,502,575) | | (6,465,244) | | (924,518) | Interest income (expense) | | 29,662 | | 33,062 | | (2,449,776) | | (350,313) | Equity in profit of subsidiaries and VIEs | | 1,190,497,730 | | 1,547,501,724 | | 1,473,467,244 | | 210,703,014 | Other income (expense), net | | 2,166,066 | | (126,446) | | — | | — | Net income | | 1,186,793,974 | | 1,539,905,765 | | 1,464,552,224 | | 209,428,183 | Other comprehensive income (loss) | | 5,878,060 | | 11,575,379 | | (17,327,603) | | (2,477,815) | Comprehensive income | | 1,192,672,034 | | 1,551,481,144 | | 1,447,224,621 | | 206,950,368 |
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| Schedule of condensed financial information of parent company statement of cash flows |
| | | | | | | | | | | December 31, | | December 31, | | Year ended December 31, | | | 2023 | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | RMB | | US$ | Net cash (used in) provided by operating activities | | (5,736,205) | | (8,157,418) | | 247,024,682 | | 35,324,059 | Collection of amounts due from subsidiaries and VIEs | | 74,701,887 | | 307,016,845 | | 629,234,299 | | 89,979,308 | Net cash provided by investing activities | | 74,701,887 | | 307,016,845 | | 629,234,299 | | 89,979,308 | Contribution from shareholders | | 1,099,619 | | 122,507 | | 19,087,375 | | 2,729,458 | Repurchase of common shares | | (24,872,828) | | (182,204,126) | | (733,975,533) | | (104,957,105) | Dividend paid | | (58,401,356) | | (116,639,508) | | (154,770,124) | | (22,131,833) | Net cash used in financing activities | | (82,174,565) | | (298,721,127) | | (869,658,282) | | (124,359,480) | Effect of foreign exchange rate changes | | 131,100 | | 18,968 | | (25,382) | | (3,630) | Net (decrease) increase in cash and cash equivalents | | (13,077,783) | | 157,268 | | 6,575,317 | | 940,257 | Cash and cash equivalents, beginning of year | | 14,280,138 | | 1,202,355 | | 1,359,623 | | 194,424 | Cash and cash equivalents, end of year | | 1,202,355 | | 1,359,623 | | 7,934,940 | | 1,134,681 |
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