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HTS 3812Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics

Product or HTS code

Rate lines10

Code	Description	General	Special	Column 2	Units	Calculate
3812.10	3812.10Prepared rubber accelerators
3812.10.10.00	3812.10.10.00Containing any aromatic or modified aromatic rubber acceleratorGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 3.7¢/kg + 60% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	3.7¢/kg + 60%	kg
3812.10.50.00	3812.10.50.00OtherGeneral 5% · Special Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) · Column 2 25% · kg	5%	Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)	25%	kg
3812.20	3812.20Compound plasticizers for rubber or plastics
3812.20.10.00	3812.20.10.00Containing any aromatic or modified aromatic plasticizerGeneral 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 + 57% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 57%	kg
3812.20.50.00	3812.20.50.00OtherGeneral 5% · Special Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) · Column 2 25% · kg	5%	Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)	25%	kg
	Anti-oxidizing preparations and other compound stabilizers for rubber or plastics
3812.31.00.00	3812.31.00.00Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)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 3.7¢/kg + 60% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	3.7¢/kg + 60%	kg
3812.39	3812.39Other
	Containing any aromatic or modified aromatic antioxidant or other stabilizer
3812.39.20.00	3812.39.20.00Mixtures of N,N'-diaryl-p-phenylenediaminesGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 3.7¢/kg + 60% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	3.7¢/kg + 60%	kg
3812.39.30.00	3812.39.30.00Master batches of poly[nitrilomethanetetraaryl- nitrilo[2,4,6- tris(1-methylethyl)-1,3- phenylene]]-2,6-bis(1-methylethyl)phenyl]-ω- [[[[2,6-bis(1-methylethyl)phenyl]amino]- methylene]amino]carbodiimide or 2,4-diisocyanate-1,3,5-tris(1-methylethyl)- benzene homopolymer with polyethylene, polyethylene terephthalate, or thermoplastic polyurethanes;Master batches of 3-(2H-benzotriazol-2-yl)-5- (tert-butyl)-4-hydroxybenzenepropanoic acid, C7-C9 branched or linear alkyl esters; andMaster batches of α-[3-[3-(2H-benzotriazol-2- yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl]-1- oxopropyl-ω-[3-[3-(2H-benzotriazol-2-yl)-5- (1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxo- propyl] poly(oxyethylene)General Free · Column 2 3.7¢/kg + 60% · kg	Free		3.7¢/kg + 60%	kg
3812.39.60.00	3812.39.60.00OtherGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 3.7¢/kg + 60% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	3.7¢/kg + 60%	kg
	Other
3812.39.70.00	3812.39.70.00Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacateGeneral Free · Column 2 25% · kg	Free		25%	kg
3812.39.90.00	3812.39.90.00OtherGeneral 5% · Special Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) · Column 2 25% · kg	5%	Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)	25%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Germany15.29% of imports	Canada13.8% of imports	Indonesia13.72% of imports	India8.59% of imports	Mexico8.09% of imports	Netherlands6.51% of imports	South Korea6.14% of imports	Italy6.11% of imports	China5.68% of imports	Taiwan3.52% of imports
3812.10.10.00Containing any aromatic or modified aromatic rubber accelerator	10%9903.05.39	16.5%9903.05.29	16.5%9903.05.45	16.5%9903.05.44	16.5%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	44%9903.05.319903.88.03	10%9903.05.76
3812.10.50.00Other	10%9903.05.39	15%9903.05.29	15%9903.05.45	15%9903.05.44	15%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	42.5%9903.05.319903.88.03	10%9903.05.76
3812.20.10.00Containing any aromatic or modified aromatic plasticizer	10%9903.05.39	16.5%9903.05.29	16.5%9903.05.45	16.5%9903.05.44	16.5%9903.05.55	10%9903.05.39	From 12.5%9903.05.71AD/CVD may apply	10%9903.05.39	44%9903.05.319903.88.03	From 10%9903.05.76AD/CVD may apply
3812.20.50.00Other	10%9903.05.39	15%9903.05.29	15%9903.05.45	15%9903.05.44	15%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	42.5%9903.05.319903.88.03	10%9903.05.76
3812.31.00.00Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)	10%9903.05.39	16.5%9903.05.29	16.5%9903.05.45	16.5%9903.05.44	16.5%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	44%9903.05.319903.88.03	10%9903.05.76
3812.39.20.00Mixtures of N,N'-diaryl-p-phenylenediamines	10%9903.05.39	16.5%9903.05.29	16.5%9903.05.45	16.5%9903.05.44	16.5%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	44%9903.05.319903.88.03	10%9903.05.76
3812.39.30.00Master batches of poly[nitrilomethanetetraaryl- nitrilo[2,4,6- tris(1-methylethyl)-1,3- phenylene]]-2,6-bis(1-methylethyl)phenyl]-ω- [[[[2,6-bis(1-methylethyl)phenyl]amino]- methylene]amino]carbodiimide or 2,4-diisocyanate-1,3,5-tris(1-methylethyl)- benzene homopolymer with polyethylene, polyethylene terephthalate, or thermoplastic polyurethanes;Master batches of 3-(2H-benzotriazol-2-yl)-5- (tert-butyl)-4-hydroxybenzenepropanoic acid, C7-C9 branched or linear alkyl esters; andMaster batches of α-[3-[3-(2H-benzotriazol-2- yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl]-1- oxopropyl-ω-[3-[3-(2H-benzotriazol-2-yl)-5- (1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxo- propyl] poly(oxyethylene)	10%9903.05.39	10%9903.05.29	10%9903.05.45	10%9903.05.44	10%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	37.5%9903.05.319903.88.03	10%9903.05.76
3812.39.60.00Other	10%9903.05.39	16.5%9903.05.29	16.5%9903.05.45	16.5%9903.05.44	16.5%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	44%9903.05.319903.88.03	10%9903.05.76
3812.39.70.00Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate	10%9903.05.39	10%9903.05.29	10%9903.05.45	10%9903.05.44	10%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	37.5%9903.05.319903.88.03	10%9903.05.76
3812.39.90.00Other	10%9903.05.39	15%9903.05.29	15%9903.05.45	15%9903.05.44	15%9903.05.55	10%9903.05.39	12.5%9903.05.71	10%9903.05.39	42.5%9903.05.319903.88.03	10%9903.05.76

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).