As of June 30, 2026 and December 31, 2025, intangible assets, net consist of the following:


	June 30, 2026			December 31, 2025
Patent use right	$	16,011,923		$	16,598,040
Trademarks		1,306,657			1,315,508
Customer relationships		1,897,917			1,928,056
Service agreement		20,062,875			20,797,278
Developed technology		23,740,772			24,143,765
Others		113,699			114,514
Subtotal		63,133,843			64,897,161
Less: accumulated amortization		(3,436,714	)		(2,630,988	)
Less: accumulated impairment		(14,010,432	)		(14,523,285	)
Intangible assets, net	$	45,686,697		$	47,742,888

Amortization expense was $662,637 and $41,073 for the three months ended June 30, 2026 and 2025, respectively, and $912,638 and $54,445 for the six months ended June 30, 2026 and 2025, respectively.

Estimated future amortization expense related to intangible assets as of June 30, 2026 is as follows:


Years ending December 31,	Amortization Expense
Remainder of 2026	$	1,304,362
2027		2,608,725
2028		2,528,605
2029		2,507,656
2030		2,506,671
Thereafter		34,230,678
Total	$	45,686,697