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Accounts Receivable
6 Months Ended
Jun. 30, 2024
Accounts Receivable [Abstract]  
ACCOUNTS RECEIVABLE

5. ACCOUNTS RECEIVABLE

 

Accounts receivable and the expected credit losses consisted of the following:

 

   December 31, 2023   June 30, 2024 
   RMB   RMB   US$ 
       (Unaudited) 
Accounts receivable   15,785    18,590    2,558 
Less: allowance for expected credit losses   (37)   (37)   (5)
    15,748    18,553    2,553 

 

As of the year ended December 31, 2023 and the six months ended June 30, 2024, all accounts receivable were due from third-party customers. There were RMB29 and nil of allowance for expected credit losses recognized for the six months ended June 30, 2023 and 2024, respectively.