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EQUITY (Tables)
 12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of issued capital
            
   December 31, 
   2023   2024   2024 
   CNY   CNY   US$ 
             
Authorized:               
10,000,000 preferred shares, no par value   —    —    — 
200,000,000 common shares, no par value   —    —    — 
                
Common shares issued and fully paid:               
December 31, 2024: 9,865,767 (December 31, 2023: 8,377,897*) common shares, no par value   450,782    450,782    61,768 
Schedule of issued capital shares combination
            
   Number of shares   Share capital 
       CNY   US$ 
             
As of January 1, 2022, December 31, 2022 and January 1, 2023   40,948,082    450,782    61,768 
                
Effect of Five-to-One Share Combination*   (32,750,185)   —    — 
                
Equity-settled share-based payments   180,000    —    — 
                
As of December 31, 2023   8,377,897    450,782    61,768 
                
Issue of shares   1,487,870    —    — 
                
As of December 31, 2024   9,865,767    450,782    61,768 

 

*   The numbers of common shares above are before giving effect to the Share Combination which became effective on April 3, 2023. On April 3, 2023, the Company effected a share combination in which all of the Company's issued and outstanding ordinary shares were combined on a 5-to-1 basis. The basic and diluted earnings/(loss) per ordinary share has been retrospectively adjusted to reflect the impact of the share combination. All outstanding options, warrants and other rights to purchase the Company's common shares were adjusted proportionately as a result of the share combination.
Schedule of other capital reserves
        
    Other capital reserves 
    CNY    US$ 
           
As of January 1, 2023   735,319    100,756 
           
Deemed distribution from the controlling shareholder (Note 3)   20,382    2,793 
           
Equity-settled share-based payments   3,074    421 
           
As of December 31, 2023   758,775    103,970 
           
As of January 1, 2024   758,775    103,970 
           
Issuance of shares   13,207    1,809 
           
Equity-settled share-based payments   483    66 
           
As of December 31, 2024   772,465    105,845