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ACCOUNTS RECEIVABLE
 12 Months Ended
Dec. 31, 2011
ACCOUNTS RECEIVABLE
8. ACCOUNTS RECEIVABLE

 

    As at December 31,  
    2010     2011     2011  
    RMB     RMB     US$  
                   
Accounts receivable     170,820       260,246       41,349  
Allowance for doubtful accounts     (1,431 )     (16,057 )     (2,551 )
Accounts receivable, net     169,389       244,189       38,798  

 

    For the Years Ended December 31,  
    2009     2010     2011     2011  
    RMB     RMB     RMB     US$  
                         
Movement in allowance for doubtful accounts:                                
Balance at beginning of the year     3,830       2,000       1,431       227  
Provisions for the year     2,402       1,431       15,377       2,443  
Written back during the year     -       (2,000 )     (751 )     (119 )
Write-offs during the year     (4,232 )     -       -       -  
Balance at end of the year     2,000       1,431       16,057       2,551  

 

As at December 31, 2010 and 2011, accounts receivable with carrying value of RMB7,883 and RMB21,677 (US$3,444) were used to secure bank borrowings of RMB42,865 and RMB30,599 (US$4,862) as at December 31, 2010 and 2011, respectively (see note 16).