Key facts
- HS subheading
- 3812.39
- National lines
- 5
- Tariff
- United States
- Chapter
- 38: Miscellaneous chemical products
Summary
The United States tariff splits HS 3812.39 (anti-oxidising preparations and other compound stabilisers for rubber or plastics: Other) into 5 national lines: 3812.39.20.00 (mixtures of N,N'-diaryl-p-phenylenediamines), 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-dimeth…), 3812.39.60.00 (other), 3812.39.70.00 (bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate) and 1 other. The general (MFN) duty differs by line: 6.5% on 3812.39.20.00, free on 3812.39.30.00, 6.5% on 3812.39.60.00, free on 3812.39.70.00 and 5% on 3812.39.90.00.
United States lines under 3812.39
The United States tariff splits HS 3812.39 (anti-oxidising preparations and other compound stabilisers for rubber or plastics: Other) into 5 national lines: 3812.39.20.00 (mixtures of N,N'-diaryl-p-phenylenediamines), 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-dimeth…), 3812.39.60.00 (other), 3812.39.70.00 (bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate) and 1 other.
The general (MFN) duty differs by line: 6.5% on 3812.39.20.00, free on 3812.39.30.00, 6.5% on 3812.39.60.00, free on 3812.39.70.00 and 5% on 3812.39.90.00.
- 3812.39.20.00Mixtures of N,N'-diaryl-p-phenylenediaminesDuty: 6.5%
- 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)Duty: Free
- 3812.39.60.00OtherDuty: 6.5%
- 3812.39.70.00Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacateDuty: Free
- 3812.39.90.00OtherDuty: 5%
In other countries
No other national tariff on border.bot has live lines under 3812.39 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 3812.39?
The United States tariff splits HS 3812.39 (anti-oxidising preparations and other compound stabilisers for rubber or plastics: Other) into 5 national lines: 3812.39.20.00 (mixtures of N,N'-diaryl-p-phenylenediamines), 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-dimeth…), 3812.39.60.00 (other), 3812.39.70.00 (bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate) and 1 other.
What is the duty on HS 3812.39 in the United States?
The general (MFN) duty differs by line: 6.5% on 3812.39.20.00, free on 3812.39.30.00, 6.5% on 3812.39.60.00, free on 3812.39.70.00 and 5% on 3812.39.90.00.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: