# United States tariff lines under HS 2935.40

> The United States tariff splits HS 2935.40 (N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide) into 1 national line: 2935.40.00.00 (N-(2-hydroxyethyl)-N-methyl perfluorooctane sulfonamide). The general (MFN) duty is 6.5% on this line.

Source: https://border.bot/countries/united-states/hs-codes/293540
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) / [2935.40](https://border.bot/countries/united-states/hs-codes/293540)

## Key facts

- HS subheading: [2935.40](https://border.bot/hs-codes/293540)
- Duty (MFN): 6.5%
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2935.40

The United States tariff splits HS 2935.40 (N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide) into 1 national line: 2935.40.00.00 (N-(2-hydroxyethyl)-N-methyl perfluorooctane sulfonamide).

The general (MFN) duty is 6.5% on this line.

- [2935.40.00.00](https://border.bot/countries/united-states/hs-codes/2935400000) N-(2-hydroxyethyl)-N-methyl perfluorooctane sulfonamide. Duty (MFN): 6.5%

## In other countries

No other national tariff on border.bot has live lines under 2935.40 yet.

- [The Harmonized System text for 2935.40](https://border.bot/hs-codes/293540)

- Previous subheading: [2935.30](https://border.bot/countries/united-states/hs-codes/293530) Sulfonamides
- Next subheading: [2935.50](https://border.bot/countries/united-states/hs-codes/293550) Sulfonamides

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2935.40?

The United States tariff splits HS 2935.40 (N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide) into 1 national line: 2935.40.00.00 (N-(2-hydroxyethyl)-N-methyl perfluorooctane sulfonamide).

### What is the duty on HS 2935.40 in the United States?

The general (MFN) duty is 6.5% on this line.

## 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/293540.json