| Summary of combined financial information for the investee companies |
| | | | | | | | | As of December 31, | | As of December 31, | | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | US$ | Assets: | | | | | | | Cash and cash equivalents | | 580,989,751 | | 499,468,134 | | 71,422,993 | Financial investments | | 4,408,605,503 | | 3,754,016,087 | | 536,817,161 | Prepaid expenses and other current assets, net | | 656,666,733 | | 561,278,020 | | 80,261,689 | Long-term investments | | 667,927,748 | | 721,968,656 | | 103,240,145 | Other non-current assets | | 3,019,189,760 | | 2,958,203,995 | | 423,017,545 | Total assets | | 9,333,379,495 | | 8,494,934,892 | | 1,214,759,533 | Liabilities: | | | | | | | Accrued expenses and other current liabilities | | 5,232,335,603 | | 4,312,826,530 | | 616,725,991 | Long-term borrowings | | 1,501,000,000 | | 1,613,492,000 | | 230,726,287 | Other non-current liabilities | | 2,143,675 | | 2,143,675 | | 306,541 | Total liabilities | | 6,735,479,278 | | 5,928,462,205 | | 847,758,819 |
| | | | | | | | | | | Year ended | | Year ended | | | | | | | December 31, | | December 31, | | Year ended December 31, | | | 2023 | | 2024 | | 2025 | | 2025 | | | RMB | | RMB | | RMB | | US$ | Net revenues | | 383,611,655 | | 326,706,200 | | 205,873,146 | | 29,439,468 | Net income | | 193,845,592 | | 120,087,725 | | 107,642,794 | | 15,392,715 |
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