HTS tariff line · chapter 38
3812.31.00
Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)
Analysis
HTS 3812.31.00 covers mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) under heading 3812 (prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere…).
Neighbouring lines carry rates from duty-free to 6.5%, so the exact line matters. The widest gap is with 3812.39.70 (bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate), at duty-free: a product that belongs there but is entered here, or the reverse, changes the duty by 6.5 percentage points.
The general duty rate is 6.5% of the customs value, which is above most the rates in chapter 38 (86th percentile of 179 lines with an ad valorem rate). On a shipment valued at $10,000 that is $650 in duty before any Chapter 99 additions or preference claims.
Goods that qualify under GSP, the Australia FTA, the Bahrain FTA, the Chile FTA, the Colombia TPA, and 13 others can enter duty-free instead of paying 6.5%. It is also eligible under GSP, the developing-country programme, which Congress has to renew; check whether GSP is in force on the entry date.
Census statistics map these goods to NAICS 325998 (All Other Miscellaneous Chemical Product and Preparation Manufacturing), an industry of 1,319 US establishments employing 42,583 people. That is the industry code a US manufacturer of the same product would normally use.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 3812.10.10 | Containing any aromatic or modified aromatic rubber accelerator | 6.5% |
| 3812.10.50 | Prepared rubber accelerators: other | 5% |
| 3812.20.10 | Containing any aromatic or modified aromatic plasticizer | 6.5% |
| 3812.20.50 | Compound plasticizers for rubber or plastics: other | 5% |
| 3812.39.20 | Mixtures of N,N'-diaryl-p-phenylenediamines | 6.5% |
| 3812.39.30 | 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 |
| 3812.39.60 | Containing any aromatic or modified aromatic antioxidant or other stabilizer: other | 6.5% |
| 3812.39.70 | Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate | Free |
| 3812.39.90 | Other: other | 5% |