# United States tariff lines under HS 2918.99

> The United States tariff splits HS 2918.99 (other: Other) into 13 national lines: 2918.99.05.00 (p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid), 2918.99.06.00 (1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid), 2918.99.14.00 (2-(4-Chloro-2-methylphenoxy)propionic acid and its salts), 2918.99.18.00 (4-(4-Chloro-2-methylphenoxy) butyric acid;p-Chlorophenoxyacetic acid; and 2-(2,4-Dichlorophenoxy) propionic acid) and 9 others.

Source: https://border.bot/countries/united-states/hs-codes/291899
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) / [2918.99](https://border.bot/countries/united-states/hs-codes/291899)

## Key facts

- HS subheading: [2918.99](https://border.bot/hs-codes/291899)
- National lines: 13
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2918.99

The United States tariff splits HS 2918.99 (other: Other) into 13 national lines: 2918.99.05.00 (p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid), 2918.99.06.00 (1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid), 2918.99.14.00 (2-(4-Chloro-2-methylphenoxy)propionic acid and its salts), 2918.99.18.00 (4-(4-Chloro-2-methylphenoxy) butyric acid;p-Chlorophenoxyacetic acid; and 2-(2,4-Dichlorophenoxy) propionic acid) and 9 others.

- [2918.99.05.00](https://border.bot/countries/united-states/hs-codes/2918990500) Other, Other, Aromatic, p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid. Duty (MFN): 5.8%
- [2918.99.06.00](https://border.bot/countries/united-states/hs-codes/2918990600) Other, Other, Aromatic, 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid. Duty (MFN): free
- [2918.99.14.00](https://border.bot/countries/united-states/hs-codes/2918991400) Other, Other, Aromatic, 2-(4-Chloro-2-methylphenoxy)propionic acid and its salts. Duty (MFN): free
- [2918.99.18.00](https://border.bot/countries/united-states/hs-codes/2918991800) Other, Other, Aromatic, Other, Pesticides, 4-(4-Chloro-2-methylphenoxy) butyric acid;p-Chlorophenoxyacetic acid; and 2-(2,4-Dichlorophenoxy) propionic acid. Duty (MFN): 6.5%
- [2918.99.20.10](https://border.bot/countries/united-states/hs-codes/2918992010) Other, Other, Aromatic, Other, Pesticides, Other, 2,4-Dichlorophenoxyacetic acid, its salts and esters. Duty (MFN): 6.5%
- [2918.99.20.15](https://border.bot/countries/united-states/hs-codes/2918992015) Other, Other, Aromatic, Other, Pesticides, Other, 2-Methyl-4-chlorophenoxyacetic acid. Duty (MFN): 6.5%
- [2918.99.20.50](https://border.bot/countries/united-states/hs-codes/2918992050) Other, Other, Aromatic, Other, Pesticides, Other, Other. Duty (MFN): 6.5%
- [2918.99.30.00](https://border.bot/countries/united-states/hs-codes/2918993000) Other, Other, Aromatic, Other, Drugs. Duty (MFN): 6.5%
- [2918.99.35.00](https://border.bot/countries/united-states/hs-codes/2918993500) Other, Other, Aromatic, Other, Odoriferous or flavoring compounds. Duty (MFN): 6.5%
- [2918.99.43.10](https://border.bot/countries/united-states/hs-codes/2918994310) Other, Other, Aromatic, Other, Other, Products described in additional U.S. note 3 to section VI, 2-Methyl-3-phenyloxirane-2-carboxylic acid (P-2-P methyl glycidic acid), its salts and esters. Duty (MFN): 6.5%
- [2918.99.43.50](https://border.bot/countries/united-states/hs-codes/2918994350) Other, Other, Aromatic, Other, Other, Products described in additional U.S. note 3 to section VI, Other. Duty (MFN): 6.5%
- [2918.99.47.00](https://border.bot/countries/united-states/hs-codes/2918994700) Other, Other, Aromatic, Other, Other, Other. Duty (MFN): 6.5%
- [2918.99.50.00](https://border.bot/countries/united-states/hs-codes/2918995000) Other, Other, Other. Duty (MFN): 4%

## In other countries

No other national tariff on border.bot has live lines under 2918.99 yet.

- [The Harmonized System text for 2918.99](https://border.bot/hs-codes/291899)

- Previous subheading: [2918.91](https://border.bot/countries/united-states/hs-codes/291891) Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives
- Next subheading: [2919.10](https://border.bot/countries/united-states/hs-codes/291910) Phosphoric esters and their salts, including lactophosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2918.99?

The United States tariff splits HS 2918.99 (other: Other) into 13 national lines: 2918.99.05.00 (p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid), 2918.99.06.00 (1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid), 2918.99.14.00 (2-(4-Chloro-2-methylphenoxy)propionic acid and its salts), 2918.99.18.00 (4-(4-Chloro-2-methylphenoxy) butyric acid;p-Chlorophenoxyacetic acid; and 2-(2,4-Dichlorophenoxy) propionic acid) and 9 others.

## 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/291899.json