Amortizable intangible assets, net as of December 31, 2025 and December 31, 2024, were comprised of the following:


	Estimated	December 31, 2025							December 31, 2024
	Useful Lives (Years)	Gross Carrying Amount		Accumulated Amortization and Impairment			Net		Gross Carrying Amount		Accumulated Amortization			Net
Energy sales agreements	11-12	$	29,616	$	(17,286	)	$	12,330	$	26,186	$	(12,978	)	$	13,208
Timber cutting rights	30		36,735		(34,525	)		2,210		34,992		(7,071	)		27,921
Software and other intangible assets	5		43,736		(32,166	)		11,570		34,177		(25,477	)		8,700
		$	110,087	$	(83,977	)	$	26,110	$	95,355	$	(45,526	)	$	49,829

In connection with the Peace River mill recoverability test, the Company recognized an impairment charge of $26,491 in 2025, comprised of $25,876 against timber cutting rights and the remainder against software and other intangible assets. See the Property, Plant and Equipment, Net Note for additional detail.

Amortization expense related to intangible assets for the year ended December 31, 2025 was $6,711 (2024 – $5,953; 2023 – $13,645).

Amortization expense for the next five years related to intangible assets as of December 31, 2025 is expected to be as follows:


	2026		2027		2028		2029		2030
Amortization expense	$	6,160	$	5,900	$	4,095	$	2,810	$	1,776