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PROPERTY, PLANT AND EQUIPMENT (Tables)
6 Months Ended
Jun. 30, 2025
PROPERTY, PLANT AND EQUIPMENT  
Schedule of net book value of property, plant and equipment

Net Book Value of Property, Plant and Equipment at June 30, 2025

(thousands of dollars)

    

Alabama

    

Corporate

    

Total

Mineral rights and properties

$

8,972

$

$

8,972

Buildings

3,183

3,183

Other property, plant and equipment

 

3,984

 

11

 

3,995

Construction in progress

123,075

123,075

Total

$

139,214

$

11

$

139,225

Net Book Value of Property, Plant and Equipment at December 31, 2024

(thousands of dollars)

    

Alabama

    

Corporate

    

Total

Mineral rights and properties

$

8,972

$

$

8,972

Buildings

3,243

3,243

Other property, plant and equipment

 

2,364

 

13

 

2,377

Construction in progress

123,276

123,276

Total

$

137,855

$

13

$

137,868