Key facts
- HS subheading
- 2917.39
- National lines
- 8
- Tariff
- United States
- Chapter
- 29: Organic chemicals
Summary
The United States tariff splits HS 2917.39 (aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Other) into 8 national lines: 2917.39.04.00 (1,2,4-Benzenetricarboxylic acid, 1,2-dianhydride (Trimellitic anhydride); Phthalic acid; and 4-Sulfo-1,8-naphthalic anhydride), 2917.39.08.00 (naphthalic anhydride), 2917.39.12.00 (4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)), 2917.39.15.00 (isophthalic acid) and 4 others. The general (MFN) duty differs by line: 6.5% on 2917.39.04.00, free on 2917.39.08.00, free on 2917.39.12.00, 6.5% on 2917.39.15.00, 6.5% on 2917.39.17.00, 6.5% on 2917.39.20.00, 6.5% on 2917.39.30.00 and 6.5% on 2917.39.70.00.
United States lines under 2917.39
The United States tariff splits HS 2917.39 (aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Other) into 8 national lines: 2917.39.04.00 (1,2,4-Benzenetricarboxylic acid, 1,2-dianhydride (Trimellitic anhydride); Phthalic acid; and 4-Sulfo-1,8-naphthalic anhydride), 2917.39.08.00 (naphthalic anhydride), 2917.39.12.00 (4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)), 2917.39.15.00 (isophthalic acid) and 4 others.
The general (MFN) duty differs by line: 6.5% on 2917.39.04.00, free on 2917.39.08.00, free on 2917.39.12.00, 6.5% on 2917.39.15.00, 6.5% on 2917.39.17.00, 6.5% on 2917.39.20.00, 6.5% on 2917.39.30.00 and 6.5% on 2917.39.70.00.
- 2917.39.04.001,2,4-Benzenetricarboxylic acid, 1,2-dianhydride (Trimellitic anhydride); Phthalic acid; and 4-Sulfo-1,8-naphthalic anhydrideDuty: 6.5%
- 2917.39.08.00Naphthalic anhydrideDuty: Free
- 2917.39.12.004,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)Duty: Free
- 2917.39.15.00Isophthalic acidDuty: 6.5%
- 2917.39.17.00Tetrabromophthalic anhydrideDuty: 6.5%
- 2917.39.20.00PlasticizersDuty: 6.5%
- 2917.39.30.00Products described in additional U.S. note 3 to section VIDuty: 6.5%
- 2917.39.70.00OtherDuty: 6.5%
In other countries
No other national tariff on border.bot has live lines under 2917.39 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 2917.39?
The United States tariff splits HS 2917.39 (aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Other) into 8 national lines: 2917.39.04.00 (1,2,4-Benzenetricarboxylic acid, 1,2-dianhydride (Trimellitic anhydride); Phthalic acid; and 4-Sulfo-1,8-naphthalic anhydride), 2917.39.08.00 (naphthalic anhydride), 2917.39.12.00 (4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)), 2917.39.15.00 (isophthalic acid) and 4 others.
What is the duty on HS 2917.39 in the United States?
The general (MFN) duty differs by line: 6.5% on 2917.39.04.00, free on 2917.39.08.00, free on 2917.39.12.00, 6.5% on 2917.39.15.00, 6.5% on 2917.39.17.00, 6.5% on 2917.39.20.00, 6.5% on 2917.39.30.00 and 6.5% on 2917.39.70.00.
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: