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PROPERTY, PLANT AND EQUIPMENT, NET
3 Months Ended
Mar. 31, 2014
PROPERTY, PLANT AND EQUIPMENT, NET  
PROPERTY, PLANT AND EQUIPMENT, NET

5. PROPERTY, PLANT AND EQUIPMENT, NET

As of March 31, 2014 and December 31, 2013, property, plant and equipment consisted of the following:

(In millions)
  March 31,
2014
  December 31,
2013
 

Machinery and equipment

  $ 1,067.6     $ 1,052.8  

Chemical manufacturing plants

    1,289.4     1,259.1  

Buildings

    214.7     219.9  

Depletable land and land improvements

    290.7     292.2  

Construction-in-progress

    109.2     134.7  
           

Property, plant and equipment, at cost

    2,971.6     2,958.7  

Less: accumulated depreciation

  1,325.6     1,300.0  
           

Property, plant and equipment, net

    ​$ 1,646.0     ​$ 1,658.7