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Inventories, net (Tables)
12 Months Ended
Dec. 31, 2023
Inventories, net  
Inventories, Net

December 31, 

    

2022

    

2023

(In millions)

Raw materials:

 

  

 

  

Chemicals

$

145.3

$

188.3

Component products

 

6.2

 

5.7

Total raw materials

 

151.5

 

194.0

Work in process:

 

  

 

  

Chemicals

 

32.0

 

30.8

Component products

 

20.0

 

19.1

Total in-process products

 

52.0

 

49.9

Finished products:

 

  

 

  

Chemicals

 

350.7

 

250.4

Component products

 

5.1

 

5.9

Total finished products

 

355.8

 

256.3

Supplies (chemicals)

 

81.5

 

95.9

Total

$

640.8

$

596.1