What is the duty rate for HTS 3812.31.00.00?

The general duty rate for HTS 3812.31.00.00 is 6.5%. Special rates: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG). This code covers: Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ).

HTS 3812.31.00.00Chapter 38

HTS 3812.31.00.00 — Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) Duty Rate & Import Guide

Miscellaneous Chemical Products · $1.3M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

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%

Units: kg

Preferential Rates Available

Trade Agreement Eligibility

CUSMAKORUS

Notes

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Trade Intelligence

Monthly Imports

$1.3M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

LOW

0 rulings — · 0 reg · 0 cases

Global Rates

🇺🇸 6.5%

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 1 NCM code

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Data compiled from USITC HTS, US Census Bureau, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

Subheadings (1)

Code	Description	Rate
3812.31.00.00	Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)	6.5%

Matching Export Code (Schedule B)

3812310000Schedule B

COMPOUND PLASTICIZERS FOR RUBBER/PLASTICS MIXTURES OF OLIGOMERS OF 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE(TMQ)

Census Bureau export classification matching this HTS import code.

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