HTS 2925Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds

Product or HTS code

Rate lines14

Code	Description	General	Special	Column 2	Units
	Imides and their derivatives; salts thereof
2925.11.00.00	2925.11.00.00Saccharin and its saltsGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 15.4¢/kg + 61% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 61%	kg
2925.12.00.00	2925.12.00.00Glutethimide (INN)General Free · Column 2 15.4¢/kg + 61% · kg	Free		15.4¢/kg + 61%	kg
2925.19	2925.19Other
	Aromatic
2925.19.10.00	2925.19.10.00EthylenebistetrabromophthalimideGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 61% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 61%	kg
2925.19.30.00	2925.19.30.00Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimideGeneral Free · Column 2 15.4¢/kg + 61% · kg	Free		15.4¢/kg + 61%	kg
2925.19.42.00	2925.19.42.00OtherGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 61% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 61%	kg
	Other
2925.19.70.00	2925.19.70.00N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide)General Free · Column 2 25% · kg	Free		25%	kg
2925.19.91.00	2925.19.91.00OtherGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,L,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,L,MA,OM,P,PA,PE,S,SG)	25%	kg
	Imines and their derivatives; salts thereof
2925.21.00.00	2925.21.00.00Chlordimeform (ISO)General 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 61% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 61%	kg
2925.29	2925.29Other
	Aromatic
2925.29.10.00	2925.29.10.00N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and PentamidineGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 41% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 41%	kg
2925.29.18.00	2925.29.18.00N,N'-Diphenylguanidine; 3-Dimethyl amino methyleneiminophenol hydrochloride; 1,3-Di-o-tolylguanidine; andN,N-Dimethyl-N'-[3-[[(methylamino) carbonyl]- oxy] phenyl] methanimidamide monohydro- chlorideGeneral Free · Column 2 15.4¢/kg + 61% · kg	Free		15.4¢/kg + 61%	kg
	Other
2925.29.20.00	2925.29.20.00DrugsGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 67.5% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 67.5%	kg
2925.29.60.00	2925.29.60.00OtherGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 61% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 61%	kg
	Other
2925.29.70.00	2925.29.70.00TetramethylguanidineGeneral Free · Column 2 25% · kg	Free		25%	kg
2925.29.90.00	2925.29.90.00OtherGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	China34.08% of imports	Germany18.23% of imports	France8.91% of imports	Japan8.07% of imports	Indonesia5.46% of imports	Spain5.45% of imports	India4.75% of imports	United Kingdom4.64% of imports	South Korea4.08% of imports	Czechia1.85% of imports
2925.11.00.00Saccharin and its salts	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	16.5%9903.05.45	10%9903.05.39	16.5%9903.05.44	16.5%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.12.00.00Glutethimide (INN)	12.5%9903.05.31	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.45	10%9903.05.39	10%9903.05.44	10%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.19.10.00Ethylenebistetrabromophthalimide	19%9903.05.31	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	16.5%9903.05.45	10%9903.05.39	16.5%9903.05.44	16.5%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.19.30.00Bis(o-tolyl)carbodiimide; and 2,2',6,6'-Tetra isopropyl diphenyl carbodiimide	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.45	10%9903.05.39	10%9903.05.44	10%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.19.42.00Other	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	16.5%9903.05.45	10%9903.05.39	16.5%9903.05.44	16.5%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.19.70.00N-Chlorosuccinimide; andN,N'-Ethylene bis (5,6-dibromo-2,3- norbornane dicarboximide)	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.45	10%9903.05.39	10%9903.05.44	10%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.19.91.00Other	41.2%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	13.7%9903.05.45	10%9903.05.39	13.7%9903.05.44	13.7%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.21.00.00Chlordimeform (ISO)	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	16.5%9903.05.45	10%9903.05.39	16.5%9903.05.44	16.5%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.29.10.00N'-(4-Chloro-o-tolyl)-N,N- diemthylformamidine; Bunamidine hydrochloride; and Pentamidine	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	16.5%9903.05.45	10%9903.05.39	16.5%9903.05.44	16.5%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.29.18.00N,N'-Diphenylguanidine; 3-Dimethyl amino methyleneiminophenol hydrochloride; 1,3-Di-o-tolylguanidine; andN,N-Dimethyl-N'-[3-[[(methylamino) carbonyl]- oxy] phenyl] methanimidamide monohydro- chloride	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.45	10%9903.05.39	10%9903.05.44	10%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.29.20.00Drugs	From 44%9903.05.319903.88.03Depends on product facts	VariesDepends on product facts	VariesDepends on product facts	VariesDepends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	From 6.5%Depends on product facts	From 6.5%Depends on product facts	VariesDepends on product facts	VariesDepends on product facts
2925.29.60.00Other	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	16.5%9903.05.45	10%9903.05.39	16.5%9903.05.44	16.5%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.29.70.00Tetramethylguanidine	20%9903.05.319903.88.15	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.45	10%9903.05.39	10%9903.05.44	10%9903.05.81	12.5%9903.05.71	10%9903.05.39
2925.29.90.00Other	41.2%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	13.7%9903.05.45	10%9903.05.39	13.7%9903.05.44	13.7%9903.05.81	12.5%9903.05.71	10%9903.05.39

Total duty on a $10,000 ocean shipment entered 2026-10-13, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).