v3.26.1
PROPERTY, PLANT AND EQUIPMENT (Tables)
6 Months Ended
Jun. 30, 2026
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, 2026

(thousands of dollars)

  ​ ​ ​

Alabama

  ​ ​ ​

Corporate

  ​ ​ ​

Total

Mineral rights and properties

$

8,972

$

$

8,972

Buildings

3,063

3,063

Other property, plant and equipment

 

4,041

 

8

 

4,049

Construction in progress

128,462

128,462

Total

$

144,538

$

8

$

144,546

Net Book Value of Property, Plant and Equipment at December 31, 2025

(thousands of dollars)

  ​ ​ ​

Alabama

  ​ ​ ​

Corporate

  ​ ​ ​

Total

Mineral rights and properties

$

8,972

$

$

8,972

Buildings

3,122

3,122

Other property, plant and equipment

 

4,360

 

10

 

4,370

Construction in progress

126,729

126,729

Total

$

143,183

$

10

$

143,193