# United States tariff lines under HS 2931.45

> The United States tariff splits HS 2931.45 (non-halogenated organo-phosphorous derivatives: Salt of methylphosphonic acid and (aminoiminomethyl)urea (1: 1)) into 1 national line: 2931.45.00.00 (salt of methylphosphonic acid and (aminoiminomethyl)urea (1:1)). The general (MFN) duty is 3.7% on this line.

Source: https://border.bot/countries/united-states/hs-codes/293145
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) / [2931.45](https://border.bot/countries/united-states/hs-codes/293145)

## Key facts

- HS subheading: [2931.45](https://border.bot/hs-codes/293145)
- Duty (MFN): 3.7%
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2931.45

The United States tariff splits HS 2931.45 (non-halogenated organo-phosphorous derivatives: Salt of methylphosphonic acid and (aminoiminomethyl)urea (1: 1)) into 1 national line: 2931.45.00.00 (salt of methylphosphonic acid and (aminoiminomethyl)urea (1:1)).

The general (MFN) duty is 3.7% on this line.

- [2931.45.00.00](https://border.bot/countries/united-states/hs-codes/2931450000) Non-halogenated organo-phosphorous derivatives, Salt of methylphosphonic acid and (aminoiminomethyl)urea (1:1). Duty (MFN): 3.7%

## In other countries

No other national tariff on border.bot has live lines under 2931.45 yet.

- [The Harmonized System text for 2931.45](https://border.bot/hs-codes/293145)

- Previous subheading: [2931.44](https://border.bot/countries/united-states/hs-codes/293144) Other organo-inorganic compounds
- Next subheading: [2931.46](https://border.bot/countries/united-states/hs-codes/293146) Other organo-inorganic compounds

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2931.45?

The United States tariff splits HS 2931.45 (non-halogenated organo-phosphorous derivatives: Salt of methylphosphonic acid and (aminoiminomethyl)urea (1: 1)) into 1 national line: 2931.45.00.00 (salt of methylphosphonic acid and (aminoiminomethyl)urea (1:1)).

### What is the duty on HS 2931.45 in the United States?

The general (MFN) duty is 3.7% 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/293145.json