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Property, plant, and equipment and assets held-for-sale, net
 3 Months Ended
Mar. 31, 2026
Property, Plant and Equipment [Abstract]  
Property, plant, and equipment and assets held-for-sale, net Property, plant, and equipment and assets held-for-sale, net
The following table provides the components of Property, plant, and equipment and assets held-for-sale, net (in thousands):
Depreciation Life
or Method		March 31,
2026		December 31,
2025
Process equipment
5 - 15 years
$18,029 $18,029 
Production leach padsUnits-of-production$11,190 $11,190 
Buildings and leasehold improvements
10 years
9,086 9,536 
Test leach pads18 months6,241 6,241 
Mine equipment
5 - 7 years
5,143 5,143 
Vehicles
3 - 5 years
1,854 1,854 
Furniture and office equipment
7 years
1,141 1,141 
Mineral propertiesIndefinite life50 50 
Construction in progress and other35,832 35,257 
       Sub-total88,566 88,441 
Less, accumulated depreciation and amortization(38,453)(38,329)
Total property, plant, and equipment, net50,113 50,112 
Assets held-for-sale2,893 2,893 
Total$53,006 $53,005 
For the three months ended March 31, 2026, depreciation and amortization expense related to Property, plant, and equipment, net was $0.4 million, as compared to $0.5 million for the same period in 2025.
As of both March 31, 2026 and December 31, 2025, the Company’s assets-held-for-sale of $2.9 million consisted of one semi-autogenous mill that was not in use.