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Property, Plant, and Equipment and Assets Held-For-Sale, Net
 6 Months Ended
Jun. 30, 2025
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, net (in thousands):
Depreciation Life
or Method		June 30,
2025		December 31,
2024
Process equipment
5 - 15 years
$18,029 $18,030 
Production leach padsUnits-of-production$11,190 $11,190 
Buildings and leasehold improvements
10 years
9,507 9,446 
Test leach pads18 months6,241 6,241 
Mine equipment
5 - 7 years
5,087 5,050 
Vehicles
3 - 5 years
1,854 1,854 
Furniture and office equipment
7 years
973 713 
Mineral propertiesUnits-of-production50 50 
Construction in progress and other35,389 35,287 
       Sub-total88,320 87,861 
Less, accumulated depreciation and amortization(37,321)(36,273)
Total property, plant, and equipment, net50,999 51,588 
Assets held-for-sale5,698 5,698 
Total$56,697 $57,286 
During the three and six months ended June 30, 2025, depreciation and amortization expense related to Property, plant, and equipment, net was $0.5 million and $1.0 million, as compared to $0.6 million and $1.2 million for the same periods in 2024.
As of both June 30, 2025 and December 31, 2024, the Company’s assets-held-for-sale of $5.7 million consisted of one semi-autogenous mill, one ball bill, and one water treatment system that are not in use. The Company is actively seeking buyers for its assets held-for-sale.