SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2023

Schedule of Mineral Properties, Plant and Equipment

The major categories of plant and equipment are depreciated on a straight-line basis using the estimated lives indicated below:


Vehicles			5 years - 7 years
Mining equipment			3 years - LOM
Mobile equipment components			2 years - 7 years
Buildings			LOM
Mine plant equipment			LOM
Underground infrastructure			LOM
ROU assets - plant and equipment (1)			10 years - LOM

(1)For ROU assets, the depreciation period indicated above represents the period from lease commencement date to the earlier of the end of the useful life of the underlying asset or the end of the lease term.

The components of Mineral properties, plant and equipment, net were as follows (in thousands):


	December 31,
	2023		2022
Plant and equipment (1)	$	1,889,634	$	1,793,914
Construction in process		86,304		58,704
Mineral properties subject to depletion		2,085,678		1,452,850
Mineral properties not yet subject to depletion		878,712		848,281
Exploration and evaluation assets		253,842		515,070
Total mineral properties, plant, and equipment		5,194,170		4,668,819
Accumulated depreciation, plant and equipment		(714,579)		(621,323)
Accumulated depreciation, mineral properties		(606,705)		(498,050)
Mineral properties, plant, and equipment, net	$	3,872,886	$	3,549,446

(1)As of December 31, 2023 and 2022, plant and equipment includes finance lease right-of-use assets with a carrying amount of $84.7 million and $101.7, respectively.