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INVENTORIES
6 Months Ended
Jun. 30, 2020
INVENTORIES  
INVENTORIES

9.    INVENTORIES

Inventories consist of the following:

    

June 30, 

    

December 31, 

(in thousands)

2020

2019

Raw materials and supplies

$

27,441

$

24,993

Work in process

 

9,689

 

7,731

Finished goods

 

6,060

 

8,829

Total inventories

$

43,190

$

41,553