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Inventory (Tables)
12 Months Ended
Dec. 31, 2021
Inventory  
Schedule of Inventory

Inventory as of December 31, 2021 and 2020, consists of the following (in thousands):

    

    

December 31, 2021

December 31, 2020

Raw materials and supplies - production locations

$

187,449

$

92,221

Raw materials and supplies - customer locations

16,294

12,405

Work-in-process

 

58,341

 

29,349

Finished goods

 

7,079

 

5,411

Inventory

$

269,163

$

139,386