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Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Inventories  
Schedule of Inventories Inventory consisted of the following (in thousands):

March 31,

December 31,

2022

2021

Raw materials

$

1,871,749

$

1,870,300

Supplies

562,204

552,616

Work in progress

435,896

402,207

Finished goods

646,966

706,007

Total inventories

$

3,516,815

$

3,531,130