v3.26.1
Accounts receivable, net (Tables)
12 Months Ended
Dec. 31, 2025
Accounts receivable, net  
Schedule of accounts receivable, net

As of December 31, 

2024

2025

RMB

RMB

Accounts receivable, gross

  ​ ​ ​

66,782,454

  ​ ​ ​

92,400,198

Less: allowance for credit loss

 

(17,725,683)

 

(14,816,208)

Accounts receivable, net

 

49,056,771

 

77,583,990

Schedule of provision for current expected credit loss

2023

  ​ ​ ​

2024

  ​ ​ ​

2025

  ​ ​ ​

RMB

  ​ ​ ​

RMB

  ​ ​ ​

RMB

Balance as of January 1

  ​ ​ ​

8,875,133

  ​ ​ ​

20,164,070

  ​ ​ ​

17,725,683

Addition (Reversal)

 

11,809,161

 

(1,944,636)

 

(2,909,475)

Write offs

 

(520,224)

 

(493,751)

 

Balance as of December 31

 

20,164,070

 

17,725,683

 

14,816,208