Intangible Assets, Net

12 Months Ended

Dec. 31, 2023

Intangible Assets, Net [Abstract]

Intangible Assets, net

11. Intangible Assets, net

Intangible assets as of December 31, 2022 and 2023 consisted of the followings:

	December 31, 2022			December 31, 2023
Computer software at cost	$	104,211		$	139,732
Sewage discharge permit*		1,762,129			1,715,450
		1,866,340			1,855,182
Accumulated amortization		(557,282	)		(1,013,822	)
	$	1,309,058		$	841,360

Amortization expenses were $513,311 and $472,980 for the years ended December 31, 2022 and 2023, respectively.

Total future amortization expenses for finite-lived intangible assets were estimated as follows:

2024	$	120,896
2025		469,557
2026		200,893
2027		9,197
2028		8,236
Thereafter		32,581
Total	$	841,360