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INVENTORIES
12 Months Ended
Dec. 31, 2012
INVENTORIES [Abstract]  
INVENTORIES
  8. INVENTORIES

 

Inventories consisted of the following:

 

 

    As of December 31,  
    2011     2012  
    RMB     RMB  
Raw materials     85,429,622       80,712,251  
Work-in-progress     161,793,585       92,719,649  
Finished goods     550,852,122       354,530,478  
Total     798,075,329       527,962,378  

 

Write-down of the carrying amount of inventory to its estimated market value was RMB29,602,473, RMB201,662,101 and RMB332,337,477 for the years ended December 31, 2010, 2011 and 2012, respectively, and were recorded as cost of revenues in the consolidated statements of operations. Inventories are pledged as collateral for the Group's borrowings (Note 17).