# United States tariff line 2918.29.08.00: m-Hydroxybenzoic acid

> In the United States tariff, line 2918.29.08.00 covers carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, m-Hydroxybenzoic acid. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2918.29 in heading 29.18 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2918290800
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2918.29](https://border.bot/countries/united-states/hs-codes/291829) / [2918.29.08.00](https://border.bot/countries/united-states/hs-codes/2918290800)

## Key facts

- Tariff line: 2918.29.08.00
- Covers: Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, m-Hydroxybenzoic acid
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2918.29](https://border.bot/hs-codes/291829)

## What this line covers

In the United States tariff, line 2918.29.08.00 covers carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, m-Hydroxybenzoic acid.

Its legal text is “m-Hydroxybenzoic acid”, read under “Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives” and “Other”.

## How it is structured

It falls under HS subheading 2918.29 in heading 29.18 (chapter 29). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 29: Organic chemicals
- Heading 29.18: Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives
- Subheading 2918.29: Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives
- Within the subheading: Other
- Line 2918.29.08.00: m-Hydroxybenzoic acid

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 2918.29 yet.

- [The Harmonized System text for 2918.29](https://border.bot/hs-codes/291829)

## Other lines under 2918.29

- [2918.29.04.00](https://border.bot/countries/united-states/hs-codes/2918290400) 2,3-Cresotic acid; 2-Hydroxybenzoic acid, calcium salt; 1-Hydroxy-2-naphthoic acid; 2-Hydroxy-1-naphthoic acid; 1-Hydroxy-2-naphthoic acid, phenyl ester;α-Resorcylic acid;γ-Resorcylic acid; and 5-Sulfosalicylic acid
- [2918.29.06.00](https://border.bot/countries/united-states/hs-codes/2918290600) 1,6-Hexanediol bis(3,5-dibutyl-4-hydroxyphenyl)propionate)
- [2918.29.20.00](https://border.bot/countries/united-states/hs-codes/2918292000) Gentisic acid; and Hydroxycinnamic acid and its salts
- [2918.29.22.00](https://border.bot/countries/united-states/hs-codes/2918292200) p-Hydroxybenzoic acid
- [2918.29.25.00](https://border.bot/countries/united-states/hs-codes/2918292500) 3-Hydroxy-2-naphthoic acid
- [2918.29.30.00](https://border.bot/countries/united-states/hs-codes/2918293000) Gallic acid
- [2918.29.39.00](https://border.bot/countries/united-states/hs-codes/2918293900) 4,4-Bis(4-hydroxyphenyl) pentanoic acid; and 3,5,6-Trichlorosalicylic acid
- [2918.29.65.00](https://border.bot/countries/united-states/hs-codes/2918296500) Products described in additional U.S. note 3 to section VI
- [2918.29.75.00](https://border.bot/countries/united-states/hs-codes/2918297500) Other

- Previous line: [2918.29.06.00](https://border.bot/countries/united-states/hs-codes/2918290600) 1,6-Hexanediol bis(3,5-dibutyl-4-hydroxyphenyl)propionate)
- Next line: [2918.29.20.00](https://border.bot/countries/united-states/hs-codes/2918292000) Gentisic acid; and Hydroxycinnamic acid and its salts

## Frequently asked questions

### What does tariff line 2918.29.08.00 cover in the United States tariff?

In the United States tariff, line 2918.29.08.00 covers carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, m-Hydroxybenzoic acid.

### What is the general (MFN) duty on 2918.29.08.00 in the United States?

Goods under this line enter free of general (MFN) duty.

## 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:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/2918290800.json