What is the duty rate for HTS 3105.40.00?

Q: What is the duty rate for HTS 3105.40.00?

The general duty rate for HTS 3105.40.00 is Free. This code covers: Ammonium dihydrogenorthophosphate (Monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (Diammonium phosphate).

HTS 3105.40.00Chapter 31

HTS 3105.40.00 — Ammonium dihydrogenorthophosphate (Monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (Diammonium phosphate) Duty Rate & Import Guide

Fertilizers · $17.1M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Notes

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Trade Intelligence

Monthly Imports

$17.1M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

LOW

0 rulings — · 0 reg · 0 cases

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 1 NCM code

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Data compiled from USITC HTS, US Census Bureau, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-29 · Updates monthly

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

Subheadings (3)

Code	Description	Rate
3105.40.00	Ammonium dihydrogenorthophosphate (Monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (Diammonium phosphate)	Free
3105.40.00.10	Ammonium dihydrogenorthophosphate (Monoammonium phosphate)	—
3105.40.00.50	Other	—

Matching Export Code (Schedule B)

3105400000Schedule B

AMMONIUM DIHYDROGENORTHOPHOSPHATE (MONOAMMONIUM PHOSPHATE) AND MIXTURES THEREOF WITH DIAMMONIUM HYDROGENORTHOPHOSPHATE (DIAMMONIUM PHOSPHATE)

Census Bureau export classification matching this HTS import code.

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