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Leases (Tables)
12 Months Ended
Dec. 31, 2024
Leases  
Schedule of sales-type lease income

For the years ended December 31,

2022

2023

2024

    

RMB

    

RMB

    

RMB

    

US$

Financing income

337,355

Schedule of future minimum rental payments for operating leases

As of December 31, 

2023

2024

    

RMB

    

RMB

    

US$

1 year (Including 1 year)

33,802,951

19,881,698

2,723,781

1 year to 2 years (Including 2 years)

 

23,258,088

 

15,925,475

 

2,181,781

2 years to 3 years (Including 3 years)

 

14,737,167

 

10,233,700

 

1,402,011

3 years to 4 years (Including 4 years)

 

4,802,888

 

9,335,618

 

1,278,974

4 years to 5 years (Including 5 years)

 

3,982,687

 

6,713,328

 

919,722

Over 5 years

 

934,146

 

14,278,622

 

1,956,163

Total lease payments

 

81,517,927

 

76,368,441

 

10,462,432

Less: imputed interest

 

11,820,823

 

8,965,407

 

1,228,254

Present value of lease liabilities

 

69,697,104

 

67,403,034

 

9,234,178

Less: Current portion

(29,937,993)

(18,696,986)

(2,561,477)

Non-current portion of lease liabilities

39,759,111

48,706,048

6,672,701

Schedule of operating lease supplemental cash flow information

For the years ended December 31,

2023

2024

    

RMB

    

RMB

    

US$

Cash payments for operating leases

25,839,863

30,645,878

4,198,468

Operating ROU assets released in exchange for operating lease liabilities

26,602,626

24,904,133

3,411,852

Operating ROU assets obtained in exchange for new operating lease liabilities

 

115,402,428

 

51,284,880

 

7,026,000