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Condensed Financial Information of the Parent Company (Tables)
12 Months Ended
Dec. 31, 2022
Condensed Financial Information [Abstract]  
Schedule of condensed balance sheets
  

As of

December 31,

  

As of

December 31,

 
   2021   2022 
   RMB   RMB   US$ 
Assets            
Non-current assets            
Investments in subsidiaries   16,887,523    33,325,657    4,785,006 
Total assets   16,887,523    33,325,657    4,785,006 
                
Shareholders’ equity               
Class A Ordinary shares (par value of US$0.0001 per share;480,000,000 Class A ordinary shares authorized and 10,790,400 and 13,590,400 Class A ordinary shares issued and outstanding as of December 31, 2021, 2022, respectively.)*   6,880    8,830    1,268 
Class B Ordinary shares (par value of US$0.0001 per share; 20,000,000 Class B ordinary shares authorized and 6,409,600 class B shares issued and outstanding as of December 31, 2021 and 2022, respectively.)*   4,087    4,087    587 
Additional paid-in capital   13,190,206    72,691,813    10,437,328 
Subscription receivable   
-
    (34,823,000)   (5,000,000)
Statutory reserves   2,447,862    4,651,141    667,826
Retained earnings (Accumulated deficit)   1,219,888    (9,025,668)   (1,295,935)
Accumulated other comprehensive income   18,600    (181,546)   (26,068)
Total shareholders’ equity   16,887,523    33,325,657    4,785,006 
Total liabilities and shareholders’ equity   16,887,523

   33,325,657

    4,785,006

 

 

*Ordinary shares, additional paid-in capital and share data have been retroactively restated to give effect to the reverse recapitalization completed on September 6, 2022 (Note 1(b)).

 

Schedule of condensed statements of comprehensive income
   For the years ended December 31, 
   2020   2021   2022 
   RMB   RMB   RMB   US$ 
Operating income:                
Share of income from subsidiaries   3,062,437    10,305,308    3,888,723    558,356 
Total operating income   3,062,437    10,305,308    3,888,723    558,356 
                     
Income before income tax expense   3,062,437    10,305,308    3,888,723    558,356 
Income tax expense   
-
    
-
    
-
    
-
 
Net income   3,062,437    10,305,308    3,888,723    558,356 
                     
Other comprehensive income   11,615

    10,158

    (200,146

)   (28,738

)
Total comprehensive income   

3,074,052

   10,315,466

    
3,688,577

    529,618 

 

Schedule of condensed statements of cash flows
   For the years ended December 31, 
   2020   2021   2022 
   RMB   RMB   RMB   US$ 
Cash flows from operating activities:                
Net income   3,062,437    10,305,308    3,888,723    558,356 
Adjustments to reconcile net income to net cash provided by operating activities:                    
Equity in gain of subsidiaries   (3,062,437)   (10,305,308)   (3,888,723)   (558,356)
Net cash provided by operating activities   
-
    
-
    
-
    
-
 
Net cash provided by investing activities   
-
    
-
    
-
    
-
 
Net cash provided by financing activities   
-
    
-
    
-
    
-
 
Net increase in cash   
-
    
-
    
-
    
-
 
Cash at beginning of year   
-
    
-
    
-
    
-
 
Cash at end of year   
-
    
-
    
-
    
-