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Inventories
3 Months Ended
Dec. 31, 2012
Inventories [Text Block]

4 Inventories, net

Inventories as of September 30, 2012 and December 31, 2012 consisted of the following:

    September 30,     December 31,  
    2012     2012  
             
Raw materials $   24,358,840   $   21,830,170  
Work-in-progress   13,912,685     15,622,544  
Finished goods   39,531,622     34,929,477  
             
    77,803,147     72,382,191  
Provision for obsolete inventories   (12,419,318 )   (11,814,847 )
             
  $   65,383,829   $   60,567,344  

Part of the Company’s inventories with carrying value of $23,863,691 and $24,072,024 as of September 30, 2012 and December 31, 2012, respectively, was pledged as collateral under certain loan agreements (see Note 7).

An analysis of provision for obsolete inventories for the three months ended December 31, 2011 and 2012 is as follows:

  Three months ended December 31,  
    2011     2012  
             
Balance at beginning of period $ 7,125,699   $ 12,419,318  
Provision for the period   84,677     -  
Reversal for the period   (370,416 )   (710,827 )
Foreign exchange adjustment   50,499     106,356  
             
Balance at end of period $ 6,890,459   $ 11,814,847