v3.26.1
INVENTORIES (Tables)
 6 Months Ended
Jun. 30, 2026
Inventory Disclosure [Abstract]  
Schedule of Inventories
The Company’s inventories consisted of the following:
June 30, 2026December 31, 2025
(in thousands)
Raw materials and supplies, including spare parts
$70,989 $56,491 
Mined ore stockpiles
24,668 23,795 
Work in process
55,333 51,652 
Finished goods
22,438 39,622 
Total current inventories
173,428 171,560 
Add: Non-current portion(1)
106,082 80,539 
Total inventories
$279,510 $252,099 
(1)Primarily represents stockpiles of mined ore and bastnaesite concentrate that are not expected to be processed or consumed within the next 12 months. The ore and concentrate amounts were $25.7 million and $46.0 million as of June 30, 2026, respectively, and $24.1 million and $31.7 million as of December 31, 2025, respectively.
Schedule of Noncurrent Inventories
The Company’s inventories consisted of the following:
June 30, 2026December 31, 2025
(in thousands)
Raw materials and supplies, including spare parts
$70,989 $56,491 
Mined ore stockpiles
24,668 23,795 
Work in process
55,333 51,652 
Finished goods
22,438 39,622 
Total current inventories
173,428 171,560 
Add: Non-current portion(1)
106,082 80,539 
Total inventories
$279,510 $252,099 
(1)Primarily represents stockpiles of mined ore and bastnaesite concentrate that are not expected to be processed or consumed within the next 12 months. The ore and concentrate amounts were $25.7 million and $46.0 million as of June 30, 2026, respectively, and $24.1 million and $31.7 million as of December 31, 2025, respectively.