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INTEREST-BEARING LOANS AND BORROWINGS (Tables)
6 Months Ended
Jun. 30, 2022
Interest-bearing Loans And Borrowings  
Schedule of interest bearing loan and borrowings
                         
           December 31,   June 30, 
           2021   2022   2022 
           CNY   CNY   US$ 
  

Interest rate

  

Maturity

   (Audited)   (Unaudited)   (Unaudited) 
Non-current interest-bearing loans                         
Bank loan-secured and guaranteed   5.05%   

2023 to 2038

    74,000    72,500    10,822 
                          
Current interest-bearing loans                         
Bank loan-secured and guaranteed   5.05%   2022 to 2023    3,000    3,000    448 
                          
Total             77,000    75,500    11,270