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INCOME TAX EXPENSE (Tables)
12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of current and deferred components of income tax expense
                 
   Year Ended December 31, 
   2022   2023   2024   2024 
   CNY   CNY   CNY   US$ 
                 
Current income tax expense                
Deferred income tax benefit                
Total tax credit for the year from continuing operations                
Total tax charge for the year from a discontinued operation   5,864    1,931         
Total   5,864    1,931         
Schedule of Profit/(loss) before income tax
                 
   Year Ended December 31, 
   2022   2023   2024   2024 
   CNY   CNY   CNY   US$ 
                 
PRC   6,406    (1,718   (2,631)   (360)
BVI   (22,776)   (8,738)   (473)   (64)
Hong Kong   (62)   (56)   (56)   (8)
                     
Total loss before income tax for the year   (16,432)   (10,512)   (3,160)   (432)
Schedule of reconciliation of the income tax expenses
                 
   Year Ended December 31, 
   2022   2023   2024   2024 
   CNY   CNY   CNY   US$ 
                 
Loss before income tax for the year from continuing operations   (23,338)   (8,337)   (3,160)   (432)
Profit/(loss) before income tax for the year from a discontinued operation   6,906    (2,175)        
Total   (16,432)   (10,512)   (3,160)   (432)
Tax at the statutory tax rate   25%   25%   25%   25%
Computed income tax benefit   (4,108)   (2,628)   (790)   (108)
Effect of different tax rates of the Company and certain subsidiaries   5,699    2,190    123    17 
Tax losses with no deferred tax assets recognized   420    290    667    91 
Non-deductible expenses   983    617         
Statutory income   (201)            
Deductible temporary differences with no deferred tax assets recognized   971    2,430         
Utilization of previously unrecognized deductible temporary differences and tax losses   (1,774)   (2,021)        
Write-off of unrecoverable deferred tax assets previously recognized   2,272             
Preferential tax rate   14    95         
Others   1,588    958         
                     
Total tax credit for the year from continuing operations                
Total tax charge for the year from a discontinued operation   5,864    1,931         
Income tax benefit   5,864    1,931