v3.26.1
Mineral Properties, Plant and Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2026
Property, Plant and Equipment [Abstract]  
Schedule of Mineral Properties, Plant and Equipment, Net

 

June 30,
2026

 

 

December 31,
2025

 

Thacker Pass - construction in progress 1

 

$

1,925,885

 

 

$

1,235,620

 

Thacker Pass - property, plant and equipment

 

 

197,111

 

 

 

98,740

 

Machinery and equipment

 

 

4,044

 

 

 

3,955

 

Finance lease right-of-use assets

 

 

21,315

 

 

 

19,912

 

Total mineral properties, plant and equipment

 

 

2,148,355

 

 

 

1,358,227

 

Accumulated depreciation

 

 

(57,599

)

 

 

(14,223

)

Total mineral properties, plant and equipment, net

 

$

2,090,756

 

 

$

1,344,004

 

1 At June 30, 2026, included prepaid construction costs of $88.8 million (December 31, 2025 - $75.0 million) and deposits on long-lead equipment of $243.8 million (December 31, 2025 - $268.7 million), all related to Thacker Pass. In addition, amount included capitalized amounts for deferred interest on the Notes of $18.5 million (December 31, 2025 - $13.0 million), discount amortization of $15.9 million on the Notes and PPA (December 31, 2025 - $9.1 million), deferred interest on the DOE Loan of $18.3 million (December 31, 2025 - $2.3 million), and $3.4 million of interest on other loans (December 31, 2025 - $3.2 million).

In