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Inventories
6 Months Ended
Mar. 31, 2014
Inventories [Text Block]

4. Inventories

Inventories as of September 30, 2013 and March 31, 2014 consisted of the following:

    September 30, 2013     March 31, 2014  
Raw materials $ 9,732,211   $ 7,217,310  
Work-in-progress   9,220,019     9,841,108  
Finished goods   38,322,957     25,545,910  
  $ 57,275,187   $ 42,604,328  

During the three months ended March 31, 2013 and 2014, obsolete inventory write-downs to lower of cost or market of $6,520,619 and $1,008,589, respectively, were charged to cost of revenues.

During the six months ended March 31, 2013 and 2014, obsolete inventory write-downs to lower of cost or market of $25,795,764 and $5,647,009, respectively, were charged to cost of revenues.