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

https://geopax.app/tariffs/catalog/38/3812

Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=3812). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

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

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 3812 | Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics: |  |  |  |  |
| 3812.10 |   Prepared rubber accelerators: |  |  |  |  |
| 3812.10.10.00 |     Containing any aromatic or modified aromatic rubber accelerator | 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 |     Other | 5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) | 25% | kg |
| 3812.20 |   Compound plasticizers for rubber or plastics: |  |  |  |  |
| 3812.20.10.00 |     Containing any aromatic or modified aromatic plasticizer | 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 |     Other | 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 |     Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) | 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 |     Other: |  |  |  |  |
|  |       Containing any aromatic or modified aromatic antioxidant or other stabilizer: |  |  |  |  |
| 3812.39.20.00 |         Mixtures of N,N'-diaryl-p-phenylenediamines | 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 |         Master 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) | Free |  | 3.7¢/kg + 60% | kg |
| 3812.39.60.00 |         Other | 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 |         Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate | Free |  | 25% | kg |
| 3812.39.90.00 |         Other | 5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) | 25% | kg |