Ecovyst, Inc. Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2021

13. Property, Plant and Equipment:

A summary of property, plant and equipment, at cost, and related accumulated depreciation is as follows:


	December 31,
	2021		2020
Land	$	97,047	$	93,650
Buildings and improvements	77,851		76,010
Machinery and equipment	714,435		656,502
Construction in progress	45,952		42,447
	935,285		868,609
Less: accumulated depreciation	(339,054)		(276,899)
	$	596,231	$	591,710

Depreciation expense was $65,955, $65,333 and $61,244 for the years ended December 31, 2021, 2020 and 2019, respectively.