PROPERTY, PLANT, AND EQUIPMENT (Tables)

3 Months Ended

Mar. 31, 2026

Property, plant and equipment, net as of March 31, 2026 and December 31, 2025 consist of the following (in thousands):


	March 31, 2026	December 31, 2025	Estimated Useful Lives
Land and improvements1	$74,906	$21,769	20 years
Building and improvements	295,367	275,186	10 to 39 years
Mining equipment	314,357	393,623	3 years
Electrical and mechanical equipment	91,015	80,384	15 years
Other property, plant and equipment	16,178	18,164	5 to 7 years
Total	791,823	789,126
Less: accumulated depreciation and amortization	372,193	406,893
Total	419,630	382,233
Add: Construction in progress	925,294	911,066
	$1,344,924	$1,293,299

1 Estimated useful life of improvements. Land is not depreciated.

As of March 31, 2026 and December 31, 2025, property, plant and equipment, net being leased to customers consisted of the

following (in thousands):


	March 31, 2026	December 31, 2025
Land and improvements	$63,809	$5,546
Building and improvements	261,208	146,082
Electrical and mechanical equipment	41,735	19,146
Other property, plant and equipment	224	226
Total	366,976	171,000
Less: accumulated depreciation and amortization	11,502	9,856
Property, plant and equipment, net leased to customers	$355,475	$161,144