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Property, Plant, and Equipment
3 Months Ended
Sep. 30, 2012
Property, Plant, and Equipment [Abstract]  
Property, Plant, and Equipment
(5)           Property, Plant, and Equipment

Property, plant, and equipment, net, is comprised of the following:
               
September 30
 
June 30,
               
2012
 
2012
Land, land improvements, and land use rights
$
10,561
 
10,831
Building and improvements
 
76,992
 
76,395
Machinery and equipment
 
180,182
 
175,305
Furnaces
       
195,245
 
193,055
Mineral reserves
   
55,843
 
55,843
Mine development
 
4,512
 
4,058
Other
         
4,916
 
4,852
Construction in progress
 
27,215
 
23,616
 
Property, plant, and equipment, gross
 
555,466
 
543,955
Less accumulated depreciation, depletion and amortization
 
(122,570)
 
(111,194)
 
Property, plant, and equipment, net
$
432,896
 
432,761
 
Depreciation, depletion and amortization expense for the three months ended September 30, 2012 was $11,683, of which $11,502 is recorded in cost of goods sold and $181 is recorded in selling, general, and administrative expenses, respectively. Depreciation, depletion and amortization expense for the three months ended September 30, 2011 was $7,300, of which $7,106 is recorded in cost of goods sold and $194 is recorded in selling, general, and administrative expenses, respectively.
 
Capitalized interest for the three months ended September 30, 2012 and 2011 was $0 and $12, respectively.