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Property, Plant and Equipment
3 Months Ended
Mar. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

5. Property, Plant and Equipment

Property, plant and equipment as of March 31, 2014 and December 31, 2013 comprise the following:

 

     March 31,
2014
    December 31,
2013
 

Buildings and related structures

   $ 80,145      $ 81,050   

Machinery and equipment

     272,443        269,840   

Vehicles and others

     23,333        22,397   
  

 

 

   

 

 

 
     375,921        373,287   

Less: accumulated depreciation

     (141,525     (136,397

Land

     17,188        17,407   
  

 

 

   

 

 

 

Property, plant and equipment, net

   $ 251,584      $ 254,297