# 310540 — Mineral or chemical fertilisers containing two or three of the fertilising…: Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)

HS code 310540 classifies Mineral or chemical fertilisers containing two or three of the fertilising…: Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate). It belongs to Chapter 31 (Fertilisers) of Section VI (Products of the chemical or allied industries) of the Harmonized System. Duty rates are recorded for 1 country.

> Section VI · Products of the chemical or allied industries
> Chapter 31 · Fertilisers

**HS code:** `310540`

## Description

Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg : Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)

## Duty rates

| Country | Rate | Programme |
| --- | --- | --- |
| US United States | 0% | MFN |

Rates effective as of 2026-01-01.

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Source: https://hscode.eximagent.ai/31/310540
Last updated: 2026-06-03
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