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Harmonized Tariff Schedule (2025 HTS Revision 18 (08/06/2025))

Heading	Duty(general)	Article Description	Compare Code
2921.19		Other:	--
2921.19.11.00	3.7%	Mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing	vs-292119
2921.19.31.00	Free	3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride	vs-2921191100
2921.19.61	6.5%	Other	vs-2921193100
2921.19.61.10	6.5%	N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts	vs-29211961
2921.19.61.20	6.5%	Bis(2-chloroethyl)ethylamine)	vs-2921196110
2921.19.61.30	6.5%	Chlormethine (INN) (bis(2-chloroethyl)methylamine)	vs-2921196120
2921.19.61.40	6.5%	Trichlormethine (INN) (tris(2-chloroethyl)amine)	vs-2921196130
2921.19.61.95	6.5%	Other Acyclic polyamines and their derivatives; salts thereof:	vs-2921196140