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Accounts Receivable
12 Months Ended
Dec. 31, 2014
Receivables [Abstract]  
Accounts Receivable
6. ACCOUNTS RECEIVABLE

 

     As at December 31,  
     2013      2014      2014  
     RMB      RMB      US$  

Accounts receivable

     317,000         267,291         43,080   

Allowance for doubtful accounts

     (3,091      (2,281      (368
  

 

 

    

 

 

    

 

 

 

Accounts receivable, net

  313,909      265,010      42,712   
  

 

 

    

 

 

    

 

 

 

 

     For the Years Ended December 31,  
     2012      2013      2014      2014  
     RMB      RMB      RMB      US$  

Movement in allowance for doubtful accounts:

           

Balance at beginning of the year

     16,057         3,091         3,091         498   

Provisions for the year

     —           —           700         113   

Written back during the year

     (12,966      —           (1,510      (243
  

 

 

    

 

 

    

 

 

    

 

 

 

Balance at end of the year

  3,091      3,091      2,281      368   
  

 

 

    

 

 

    

 

 

    

 

 

 

Provisions are charged directly to the statement of comprehensive income. The related expense is included in the caption “general and administrative expense” in the consolidated statements of comprehensive income.

Accounts receivable with carrying value of RMB49,481 and RMB76,333 (US$12,303) were used to secure bank borrowings of RMB136,626 and RMB137,942 (US$22,232) as at December 31, 2013 and 2014, respectively (note 16).