v3.26.1
Income taxes (Tables)
12 Months Ended
Dec. 31, 2025
Income taxes  
Schedule of income before income tax expense

​

​

​

​

​

​

​

​

For the years ended December 31, 2025  

​

  ​ ​ ​

RMB

  ​ ​ ​

US$

PRC

 

466,207,421

 

66,666,775

Cayman

 

418,226,619

 

59,805,611

Others

 

(145,132,065)

 

(20,753,611)

Total

 

739,301,975

 

105,718,775

Schedule of Current and Deferred Component of Income Tax Expense

​

​

​

​

​

​

​

​

For the years ended December 31, 

​

​

2023

​

2024

​

  ​ ​ ​

RMB

  ​ ​ ​

RMB

Current income tax expense

 

64,458,408

 

65,805,623

Deferred income tax benefit

 

(2,117,892)

 

—

Total income tax expense

 

62,340,516

 

65,805,623

​

​

​

​

​

​

​

​

For the years ended December 31, 2025

​

  ​ ​ ​

RMB

  ​ ​ ​

US$

Current income tax expense:

 

  ​

 

  ​

PRC

 

24,067,270

 

3,441,573

Hong Kong

 

5,673,334

 

811,276

United States

 

834,699

 

119,360

Australia

 

93,526

 

13,374

United Kingdom

 

5,750

 

822

Total current tax expense

 

30,674,579

 

4,386,405

​

​

​

​

​

Deferred income tax expense

 

—

 

—

​

​

​

​

​

Total income tax expense:

 

  ​

 

  ​

PRC

 

24,067,270

 

3,441,573

Hong Kong

 

5,673,334

 

811,276

United States

 

834,699

 

119,360

Australia

 

93,526

 

13,374

United Kingdom

 

5,750

 

822

Total income tax expense

 

30,674,579

 

4,386,405

Schedule of Principal Components of Deferred Tax Assets and Liabilities

​

​

​

​

​

​

​

​

​

​

As of December 31, 

​

​

2024

​

2025

​

  ​ ​ ​

RMB

  ​ ​ ​

RMB

  ​ ​ ​

US$

Deferred tax assets:

 

  ​

 

  ​

 

  ​

Allowance for finance lease receivable

 

1,613,414

​

1,756,839

​

251,225

Allowance for other current assets

 

19,387,060

​

27,884,637

​

3,987,450

Impairment loss from long-lived assets

 

385,314

​

385,314

​

55,099

Guarantee liabilities

 

47,762

​

47,762

​

6,830

Share-based compensation

 

34,309,231

​

32,900,502

​

4,704,709

Fair value change on investments

 

105,192,397

​

108,338,541

​

15,492,205

Fair value change on financial assets

 

839,617

​

23,703,239

​

3,389,518

Lease liabilities

 

11,008,553

​

1,242,650

​

177,697

Advertising cost

 

23,027,357

​

24,007,530

​

3,433,031

Net operating loss carry forwards

​

609,993,234

​

403,082,914

​

57,640,090

Total deferred tax assets

 

805,803,939

​

623,349,928

​

89,137,854

Less: valuation allowance

 

(759,896,561)

​

(606,307,862)

​

(86,700,870)

Total deferred tax assets, net of valuation allowance

 

45,907,378

​

17,042,066

​

2,436,984

Net off against deferred tax liabilities

​

(45,907,378)

​

(17,042,066)

​

(2,436,984)

Net deferred tax assets

 

—

​

—

​

—

Deferred tax liabilities:

 

​

 

​

​

​

Right-of-use assets

 

11,113,077

​

629,683

​

90,044

Fair value change on financial assets

 

34,794,301

​

16,412,383

​

2,346,940

Total deferred tax liabilities

 

45,907,378

​

17,042,066

​

2,436,984

Net off against deferred tax assets

 

(45,907,378)

​

(17,042,066)

​

(2,436,984)

Net deferred tax liabilities

 

—

​

—

​

—

Schedule of changes related to valuation allowance

​

​

​

​

​

​

​

​

​

​

As of December 31,

​

​

2024

​

2025

​

  ​ ​ ​

RMB

  ​ ​ ​

RMB

  ​ ​ ​

US$

Balance at beginning of the year

​

(1,008,969,418)

​

(759,896,561)

​

(108,663,763)

Additions

 

(85,036,821)

 

(65,445,776)

 

(9,358,620)

Reversals

 

334,109,678

 

219,034,475

 

31,321,513

Balance at end of the year

 

(759,896,561)

 

(606,307,862)

 

(86,700,870)

Schedule of Reconciliation of Income Taxes Expense

​

​

​

​

​

​

​

​

​

For the years ended December 31, 

​

​

​

2023

​

2024

​

​

  ​ ​ ​

RMB

  ​ ​ ​

RMB

  ​ ​ ​

Income before income tax

 

101,474,055

 

157,537,018

 

PRC statutory income tax rate

 

25

%  

25

%  

Income tax expense at PRC statutory income tax rate

 

25,368,514

 

39,384,255

 

Effect of different tax rates

 

(25,070,403)

 

(97,962,122)

 

Tax exempted income

 

(198,231)

 

(113,208,078)

 

Outside basis difference

​

(215,985,749)

​

—

​

Expenses not deductible for tax purposes

 

36,882,867

 

13,122,045

 

Adjustment on current income tax of the previous periods

 

(18,394,143)

 

—

 

Non-deductible guarantee liability:

 

93,833,446

 

—

 

Write-off of NOL and others

​

252,778,471

​

450,292,380

​

Withholding income tax

 

4,427,205

 

23,250,000

 

Changes in valuation allowance

 

(91,301,461)

 

(249,072,857)

 

Income tax expenses

​

62,340,516

​

65,805,623

​

Effective tax rate

​

61.4

%  

41.8

%  

​

​

​

​

​

​

​

​

​

For the years ended December 31, 2025

 

​

​

Amount

​

Percent

 

​

​

RMB

​

%

 

Income/(loss) before income tax

 

739,301,975

 

100.0

%

PRC statutory income tax rate

 

25.0

%

—

​

Computed income tax expense with PRC statutory income tax rate

  ​ ​ ​

184,825,494

  ​ ​ ​

25.0

%

​

​

​

​

​

​

Domestic tax effects

 

​

 

​

​

Tax exempted income

 

(10,955,971)

 

(1.5)

%

Write-off of NOL

 

22,301,473

 

3.0

%

Changes in valuation allowance

 

(112,048,066)

 

(15.2)

%

Other

 

7,315,121

 

1.0

%

​

​

​

​

​

​

Foreign tax effects

 

​

 

​

​

Hong Kong

 

​

 

​

​

Statutory tax rate difference between Hong Kong and PRC

 

10,150,643

 

1.4

%

Tax exempted income

​

(1,966,394)

​

(0.3)

%

Changes in valuation allowance

 

22,856,618

 

3.1

%

Other

 

5,632,510

 

0.8

%

Cayman

 

​

 

​

​

Statutory tax rate difference between Cayman and PRC

 

(104,556,655)

 

(14.1)

%

Other foreign jurisdictions

 

7,119,806

 

1.0

%

​

​

​

​

​

​

Total

 

30,674,579

​

4.1

%

Schedule of Income taxes paid, disaggregated by jurisdiction

​

​

​

​

​

​

​

​

For the years ended December 31, 2025  

​

  ​ ​ ​

RMB

  ​ ​ ​

US$

Hong Kong

 

5,631,579

 

805,305

Others* (PRC, US)

 

160,420

 

22,940

Total

 

5,791,999

 

828,245

* It represents the total amount of all other tax jurisdictions where the income taxes paid is less that 5% of the total.