Property, plant and equipment

12 Months Ended

Dec. 31, 2022

Property, plant and equipment

Property, plant and equipment

7. Property, plant and equipment

Property, plant and equipment are stated at cost less accumulated depreciation and amortization and depreciated using the straight-line method over their useful lives. At December 31, 2022 and 2021, the Company’s property, plant and equipment, net consisted of the following:  

		2022			2021
Computer equipment and software	$	94,530		$	156,701
Furniture and other equipment		271,798			275,606
Leasehold improvements		17,280			15,400
Equipment and machinery		943,464			1,219,056
Automobiles		4,638			4,638
Building held for lease		196,416			196,416
Laboratory and temporary units		1,364,748			1,362,760
Land		1,190,655			3,576,130
Construction in process		2,244,100			442,515
Property, plant and equipment		6,327,629			7,249,222
Less: accumulated depreciation		(718,726	)		(409,279	)
Property, plant and equipment, net	$	5,608,903		$	6,839,943

Depreciation expense for the years ended December 31, 2022 and 2021 amounted to $410,314 and $398,744, respectively.