Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT

v3.19.3.a.u2
PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
NOTE 5 - PROPERTY, PLANT AND EQUIPMENT
The following table indicates the carrying value of each of the major classes of our consolidated property, plant and equipment:
 
(In Millions)
 
December 31,
 
2019
 
2018
Land rights and mineral rights
$
549.7

 
$
549.6

Office and information technology
71.9

 
70.0

Buildings
157.8

 
87.2

Mining equipment
581.9

 
548.5

Processing equipment
791.8

 
645.8

Electric power facilities
81.9

 
58.7

Land improvements
32.5

 
23.8

Asset retirement obligation
1.7

 
14.8

Other
27.9

 
25.2

Construction-in-progress
730.3

 
284.8

 
3,027.4

 
2,308.4

Allowance for depreciation and depletion
(1,098.4
)
 
(1,022.4
)
 
$
1,929.0

 
$
1,286.0


At December 31, 2019 and 2018, we had deposits for property, plant and equipment of $34.0 million and $83.0 million, respectively, included in Other non-current assets.
We recorded depreciation expense of $76.6 million, $65.6 million and $65.8 million in the Statements of Consolidated Operations for the years ended December 31, 2019, 2018 and 2017, respectively.
We recorded capitalized interest into property, plant and equipment of $24.8 million and $6.5 million during the years ended December 31, 2019 and 2018, respectively.
The net book value of the land rights and mineral rights is as follows:
 
(In Millions)
 
December 31,
 
2019
 
2018
Land rights
$
12.4

 
$
12.4

Mineral rights:

 

Cost
$
537.3

 
$
537.2

Depletion
(134.1
)
 
(126.5
)
Net mineral rights
$
403.2

 
$
410.7


We recorded depletion expense of $7.5 million, $7.4 million and $6.8 million in the Statements of Consolidated Operations for the years ended December 31, 2019, 2018 and 2017, respectively.