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INTANGIBLE ASSETS, NET
3 Months Ended
Jun. 30, 2011
INTANGIBLE ASSETS, NET
NOTE 8 - INTANGIBLE ASSETS, NET

The intangible assets of the Company consist of land use right and purchased patents.

Net land use right and purchased patents were as follows:

   
Amortization
 
As of
 
   
Period
 
June 30, 2011
   
March 31, 2011
 
                     
Land use right
 
50 years
    1,547,801       1,547,801  
Less: Accumulated amortization
        (149,626 )     (139,821 )
Land use right, net
        1,398,175       1,407,980  
Patent 1
 
16.5 years
    7,107,979       7,016,045  
Patent (U.S. No. 6,475,531 B1)
 
119 months
    56,140,567       56,140,567  
Less: Accumulated amortization
        (2,529,998 )     (809,245 )
Patents, net
      $ 60,718,548     $ 62,347,368  

The amortization expense of land use right for the three months ended June 30, 2011 and 2010 was $9,805 and $8,141, respectively.

The amortization expense of patent for the three months ended June 30, 2011 and 2010 was $1,720,753 and $84,819, respectively.