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Property, Plant and Equipment
3 Months Ended
Mar. 31, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

4. Property, Plant and Equipment

Property, plant and equipment as of March 31, 2015 and December 31, 2014 comprise the following:

 

     March 31,
2015
     December 31,
2014
 

Buildings and related structures

   $ 70,662       $ 70,552   

Machinery and equipment

     267,733         269,031   

Vehicles and others

     24,719         24,812   
  

 

 

    

 

 

 
  363,114      364,395   

Less: accumulated depreciation

  (163,253   (157,341

Land

  16,625      16,712   
  

 

 

    

 

 

 

Property, plant and equipment, net

$ 216,486    $ 223,766   
  

 

 

    

 

 

 

Aggregate depreciation expenses totaled $6,789 thousand and $6,850 thousand for the three months ended March 31, 2015 and 2014, respectively.