Code 3105 90 · Heading 3105

Mineral or chemical fertilisers with nitrogen and potassium, or with only one main nutrient

This covers mineral or chemical fertilisers containing nitrogen and potassium, or only one fertilising element as a substantial component. It also includes mixtures of animal or vegetable fertilisers with chemical or mineral fertilisers, but not products in tablets or similar forms or in packages of gross weight <= 10 kg.

For example

Mineral potassium fertiliser containing only potassium as the substantial fertilising element, not in tablet or similar form and not in packages of gross weight <= 10 kg
Mineral nitrogen-potassium fertiliser, not in tablet or similar form and not in packages of gross weight <= 10 kg
A mixture of animal fertiliser and mineral fertiliser, not in tablet or similar form and not in packages of gross weight <= 10 kg

See the official tariff text

Official tariff text

Mineral or chemical fertilisers containing the two fertilising elements nitrogen and potassium or one principal fertilising substance only, incl. mixtures of animal or vegetable fertilisers with chemical or mineral fertilisers (excl. those in tablets or similar forms, or in packages with a gross weight of <= 10 kg)

How we got to this code

VI
31
3105
3105 90

Show the steps

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section VI Products of the chemical or allied industries
Is it an inorganic or organic chemical; a pharmaceutical product; a fertilizer; a tanning or dye extract, pigment, paint, varnish, filler or printing ink; an essential oil, perfume, cosmetic or toilet product; soap, a surface-active, washing, cleaning, polishing or wax product; a protein, modified starch, glue or enzyme; an explosive, pyrotechnic article, match or other specified combustible material; a photographic or cinematographic product; or another chemical product?
✓
Step 2 · Chapter 31 Fertilisers 4 of 11 chapters in section VI
What type of fertilizer is it: animal or vegetable; nitrogen-based; phosphorus-based; potassium-based; or a fertilizer containing two or three of nitrogen, phosphorus and potassium, another fertilizer, or one in tablet form or similar form or in a package with a gross weight <= 10 kg?
✓
Step 3 · Heading 3105 Mineral or chemical fertilisers containing two or t… 5 of 5 headings under chapter 31
Which description applies: tablets, similar forms or a pack with a gross weight of <= 10 kg; all three of nitrogen, phosphorus and potassium; diammonium phosphate; monoammonium phosphate, including mixtures with diammonium phosphate; nitrogen and phosphorus with nitrates and phosphates; nitrogen and phosphorus without those exclusions; phosphorus and potassium; or nitrogen and potassium or only one fertilizer element as a substantial constituent, including mixtures of animal or vegetable fertilizers with chemical or mineral fertilizers?
✓
Step 4 · Subheading 3105 90 Mineral or chemical fertilisers containing the two … 8 of 8 subheadings under heading 3105
Does the fertiliser contain more than 10% nitrogen by weight, or does it contain no nitrogen or nitrogen at <= 10% by weight?

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: No rate on file

2 codes below this one

Compare the sibling codes

See all 8 codes at this level

Classification decides the rate here: from 3.2% to 6.5%.

3105 10 Mineral or chemical fertilisers of animal or vegetable origin, in tablets or similar forms, or in packages with a gross weight of <= 10 kg 6.5%
3105 20 Mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium (excl. those in tablets or similar forms, or in packages with a gross weight of <= 10 kg) No rate on file
3105 30 Diammonium hydrogenorthophosphate "diammonium phosphate" (excl. that in tablets or similar forms, or in packages with a gross weight of <= 10 kg) No rate on file
3105 40 Ammonium dihydrogenorthophosphate "monoammonium phosphate", whether or not mixed with diammonium hydrogenorthophosphate "diammonium phosphate" (excl. that in tablets or similar forms, or in packages with a gross weight of <= 10 kg) No rate on file
3105 51 Mineral or chemical fertilisers containing nitrates and phosphates (excl. ammonium dihydrogenorthophosphate "Monoammonium phosphate", diammonium hydrogenorthophosphate "Diammonium phosphate", and those in tablets or similar forms, or in packages with a gross weight of <= 10 kg) No rate on file
3105 59 Mineral or chemical fertilisers containing the two fertilising elements nitrogen (excl. nitrate) and phosphorus but not nitrates (excl. ammonium dihydrogenorthophosphate "monoammonium phosphate", diammonium hydrogenorthophosphate "diammonium phosphate" in tablets or similar forms, or in packages with a gross weight of <= 10 kg) No rate on file
3105 60 Mineral or chemical fertilisers containing the two fertilising elements phosphorus and potassium (excl. those in tablets or similar forms, or in packages with a gross weight of <= 10 kg) 3.2%
3105 90 Mineral or chemical fertilisers containing the two fertilising elements nitrogen and potassium or one principal fertilising substance only, incl. mixtures of animal or vegetable fertilisers with chemical or mineral fertilisers (excl. those in tablets or similar forms, or in packages with a gross weight of <= 10 kg) you are here No rate on file

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

Their lines1 Norwegian line

31.05.9000 Other

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

From 0.0% to 6.5%

Their lines8 British lines

3105 90 20 10 Natural Chilean potassic sodium nitrate, consisting of a natural mixture of sodium nitrate

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

0.0%

Estimated from published US measures

Their lines2 US lines
Entry dateSept. 17, 2026

3105.90.00.10 Mineral or chemical fertilizers containing two or three of the fertilizing elements

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 1 Norwegian line

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

31.05.9000

Other

Ordinary duty

Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

See the 8 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

3105 90 20 10

Natural Chilean potassic sodium nitrate, consisting of a natural mixture of sodium nitrate and potassium nitrate (the proportion of potassium nitrate may be as high as 44 %), of a total nitrogen content not exceeding 16,3 % by weight on the dry anhydrous product

Ordinary duty

Duty free
3105 90 20 30

Solid fertilisers with an ammonium nitrate content exceeding 80% by weight, and a potassium content evaluated as K@2O of less than 3% by weight

Ordinary duty

6.5%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3105 90 20 40

Solid fertilisers with an ammonium nitrate content exceeding 80% by weight, and a potassium content evaluated as K@2O of 3% by weight or more but less than 6% by weight

Ordinary duty

6.5%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3105 90 20 50

Solid fertilisers with an ammonium nitrate content exceeding 80% by weight, and a potassium content evaluated as K@2O of 6% by weight or more but less than 9% by weight

Ordinary duty

6.5%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3105 90 20 60

Solid fertilisers with an ammonium nitrate content exceeding 80% by weight, and a potassium content evaluated as K@2O of 9% by weight or more but not exceeding 12% by weight

Ordinary duty

6.5%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3105 90 20 90

Other

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3105 90 80 10

Natural Chilean potassic sodium nitrate, consisting of a natural mixture of sodium nitrate and potassium nitrate (the proportion of potassium nitrate may be as high as 44 %), of a total nitrogen content not exceeding 16,3 % by weight on the dry anhydrous product

Ordinary duty

Duty free
3105 90 80 90

Other

Ordinary duty

2.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1599, last checked Sept. 13, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

See the 2 US lines

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

3105.90.00.10

Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg, Other, Potassium nitrate-sodium nitrate mixtures

General rate

Free

From the EU

0.0% Estimated from published US measures US headings applied: 9903.05.86 U.S. note 52(b) to subchapter III of chapter 99, 91 FR 47318: as provided in heading 9903.05.86, the duties imposed by headings 9903.05.20 through 9903.05.84 shall not apply to articles classifiable in the listed provisions
3105.90.00.50

Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg, Other

General rate

Free

From the EU

0.0% Estimated from published US measures US headings applied: 9903.05.86 U.S. note 52(b) to subchapter III of chapter 99, 91 FR 47318: as provided in heading 9903.05.86, the duties imposed by headings 9903.05.20 through 9903.05.84 shall not apply to articles classifiable in the listed provisions

Worked out for an entry on Sept. 17, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.