Customs code · HS subheading 3815 19

Final code reached

Supported catalysts, excluding precious-metal

Nickel and specified fine-grain catalysts

This is a complete 8-digit customs code. Exports and Intrastat use it as it is. For an import into the EU, pick a 10-digit line below.

This code covers catalysts on a carrier that do not have a precious metal or precious-metal compound, or nickel or a nickel compound, as the active substance. It also excludes the specified grain catalysts where at least 90% by weight has a size of <= 10 micrometres and the stated magnesium-silicate, copper, bismuth and density conditions apply.

For example

A copper-oxide catalyst on a carrier, with copper as the active substance, not containing a precious metal or nickel as the active substance and not being the specified fine-grain magnesium-silicate catalyst
An iron-oxide catalyst on a carrier, with iron as the active substance, not containing a precious metal or nickel as the active substance and not being the specified fine-grain magnesium-silicate catalyst

See the official tariff text

Official tariff text

Supported catalysts, n.e.s. (excl. supported catalysts with precious metal, a precious-metal compound, nickel or a nickel compound as the active substance and catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0)

You are seeing what applies when you export from the EU. Switch above if you import.

You are seeing what applies when you import into the EU. Switch above if you export.

Your answer for export

The full EU export code is 3815 19 90.

You do not pick a 10-digit EU import line for an export declaration or Intrastat. The destination classifies the goods under its own tariff.

8 digits, ready

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

38.15.1900 Other

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

6.0%

Their lines11 British lines
EU originDuty free

3815 19 90 10 Catalysts consisting of chromium trioxide, dichromium trioxide or organometallic compounds

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

Their lines1 US line
Entry dateSept. 17, 2026

3815.19.00.00 Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere

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.

38.15.1900

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 11 British lines

Selling to Great Britain

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

All 11 UK lines under this code

They all have the same duty rates shown here.

Ordinary duty

6.0%

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 1 US line

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.

3815.19.00.00

Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included, Supported catalysts, Other

General rate

Free

From the EU

10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

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.

Before you use the code

Check the facts that sit outside the code

The code can be right while what you pay still changes, because of where the goods come from, when they arrive, or extra EU measures.

Classify your own product, free Look up the current rates and rules

The product and its form Check that your product really matches this description, including what it is made of and the form it arrives in.
Country of origin Trade agreements, sanctions and extra measures can change the treatment of the very same code.
Current tariff measures Check today's rate, any restrictions or licences, and the quantity customs asks for, with Toldstyrelsen or TARIC.

What to do now for an import

The code is settled. What is left is the import declaration around it.

Choose the 10-digit import line Find the EU wording that matches the goods, and read the whole line before you pick it. 11 options Go to this section
State the country of origin: it decides the rate, sanctions and documents The same code can be charged and treated differently depending on where the goods were made.
Check today's requirements in TARIC Rates, quotas and document requirements change. The EU's own database is the current source. Open the EU TARIC database

Check it before you file This is a suggestion, please verify it against your own product.

On an EU import declaration

Pick the 10-digit line that matches the goods.

11 import lines

When these goods are imported into the EU, the declaration needs a 10-digit code. Under 3815 19 90 the EU tariff has 11 lines, each with its own wording.

You or your customs agent pick the line whose wording fits the goods; the last line, "Other", covers what none of the specific wordings describe.

Some lines depend on what the goods will be used for and need customs authorisation; matching the wording alone does not give a lower rate.

Match the whole wording A line is its own wording plus the grouping text above it. Read both before you settle on one.
Check the intended use On some lines the lower rate belongs to what the goods will be used for, not to the goods alone.
Confirm the authorisation Where the lower rate carries conditions, customs asks for an authorisation before it can be used.

3815 19 90 10

Catalysts consisting of chromium trioxide, dichromium trioxide or organometallic compounds of chromium, fixed on a silicon dioxide support with a pore volume of 2 cm³/g or more (as determined by the nitrogen absorption method)

6.5%

Duty suspension: 0%

This line in the EU tariff Rulings on this line
3815 19 90 30

Catalyst containing titanium tetrachloride supported on magnesium dichloride, for use in the manufacture of polypropylene

6.5%

Duty suspension: 0% under an end-use authorisation

Conditions apply, customs authorisation needed.

This line in the EU tariff Rulings on this line
3815 19 90 33

Catalyst, in powder form, consisting of a mixture of metal oxides fixed to a silicon dioxide support, with a total content by weight of molybdenum, bismuth and iron of 20 % or more but not more than 50 %, for use in the manufacture of acrylonitrile

6.5%

Duty suspension: 0% under an end-use authorisation

Conditions apply, customs authorisation needed.

This line in the EU tariff Rulings on this line
3815 19 90 55

Components for a catalyst system, imported as single components or as set, made up of at least one of the following preparations: -ceramic material (CAS RN 66402-68-4), -molybdenum oxide and nickel oxide supported on aluminium oxide, -molybdenum oxide, nickel oxide and aluminium phosphate supported on aluminium oxide, -molybdenum oxide, nickel oxide, aluminium phosphate, silica, and molybdenum supported on aluminium oxide, for use against organic and inorganic impurities in kerosene production

6.5%

Duty suspension: 0% under an end-use authorisation

Conditions apply, customs authorisation needed.

This line in the EU tariff Rulings on this line
3815 19 90 70

Catalyst consisting of organo-metallic compounds of aluminium and zirconium, fixed on a support of silicon dioxide

6.5%

Duty suspension: 0%

This line in the EU tariff Rulings on this line
3815 19 90 75

Catalyst consisting of organo-metallic compounds of aluminium and chromium, fixed on a support of silicon dioxide

6.5%

Duty suspension: 0%

This line in the EU tariff Rulings on this line
3815 19 90 80

Catalyst consisting of organo-metallic compounds of magnesium and titanium, fixed on a support of silicon dioxide, in the form of a suspension in mineral oil

6.5%

Duty suspension: 0%

This line in the EU tariff Rulings on this line
3815 19 90 82

Catalyst consisting of organo-metallic compounds of boron, titanium and aluminium, fixed on a support of silicon dioxide, in the form of powder

6.5%

Duty suspension: 0% for ships, boats and drilling platforms

Conditions apply, customs authorisation needed.

This line in the EU tariff Rulings on this line
3815 19 90 85

Catalyst consisting of organo-metallic compounds of aluminium, magnesium and titanium, fixed on a support of silicon dioxide, in the form of powder

6.5%

Duty suspension: 0%

This line in the EU tariff Rulings on this line
3815 19 90 86

Catalyst containing titanium tetrachloride supported on magnesium dichloride, for use in the manufacture of polyolefins

6.5%

Duty suspension: 0% under an end-use authorisation

Conditions apply, customs authorisation needed.

This line in the EU tariff Rulings on this line
3815 19 90 90

Other

6.5%

Duty suspension: 0% for ships, boats and drilling platforms

Conditions apply, customs authorisation needed.

This line in the EU tariff Rulings on this line

A suspension is a lower rate the EU grants for specific products; whether your goods qualify depends on the line's wording and conditions.

Exports from the EU and Intrastat normally use the 8-digit code as it is.

EU tariff data of Sept. 13, 2026.

This is the catch-all under 3815 19: it covers what the sibling codes below do not.

Within supported catalysts, this is the remainder for catalysts not named as precious-metal or nickel catalysts and not matching the specified fine-grain magnesium-silicate catalyst.

3815 19 10 Catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0

Rates, origin and documents

Read the signals first. Open only the ones you want to check.

Besides the ordinary duty, the EU records these kinds of measure against this code. They are listed as signals only: whether one applies to your goods can depend on where they come from, who produced them, the exact product and the documents you present. No amounts are worked out here.

Data of Sept. 1, 2026

Lower duty for goods from some countries

Possible

Preferential rates exist for goods originating in:

San Marino
Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe
Botswana, Eswatini, Lesotho, Mozambique and Namibia
Ivory Coast
Cameroon
Fiji
United Kingdom
Ghana
+46 origins

These rates apply to Economic Partnership Agreements; CARIFORUM except Haiti; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); OCTs (Overseas Countries and Territories); GSP - General arrangements; GSP+ (incentive arrangement for sustainable development and good governance).

Whether you can use one depends on the origin rules for the goods and on the documentation you can show.

Check this code in the official EU TARIC database

A limited quantity at a lower rate

Check

A tariff quota is recorded for this code. This does not say whether any of the quota is still available. It covers goods originating in:

any country except Belarus and Russian Federation

This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code

Check this code in the official EU TARIC database

Restrictions and paperwork

Important

Import restrictions are recorded for goods originating in:

Ukraine
North Korea (Democratic People’s Republic of Korea)
any country except Iran, Islamic Republic of
Iran, Islamic Republic of
any country

The EU records document conditions on this code. What customs may ask for depends on where the goods come from, exactly what the product is and the customs procedure.

Proof of origin 2 conditions

If you claim a lower rate for goods from a country the EU has a trade agreement with, customs asks for proof of origin, for example a EUR.1 certificate or an origin declaration.

Show the EU's own wording for these conditions

Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document
Movement certificate EUR.1

Sanctions and restricted regions 6 conditions

Some conditions come from EU sanctions rules. They matter when the goods are linked to a country or region the EU restricts trade with.

Show the EU's own wording for these conditions

Goods not originating from or destined to Crimea or Sevastopol (Articles 2 and 2b.1 of Council Regulation (EU) No 692/2014)
Goods not originating from or not destined for the non-government controlled areas of Ukraine in the oblasts of Donetsk, Kherson, Luhansk and Zaporizhzhia
Goods other than those described in the footnotes linked to the measure (Reg 267/2012)
Goods not consigned from Iran
Import authorisation for restricted goods and technologies (Council Regulation (EU) No 267/2012)
The declared goods are not concerned by Council Regulation (EC) No. 267/2012, Annex II

Product controls and permits 4 conditions

Depending on the exact product, customs may ask for a licence, a permit or a control certificate before the goods are released.

Show the EU's own wording for these conditions

Notification document as mentioned in Regulation (EU) 2024/1157 - Article 5 and Annex IA
Compliance with the REACH restrictions defined in Column 2 of Annex XVII of Regulation (EC) No 1907/2006
Exemption from REACH restrictions by virtue of Article 67(1) and 67(2) of Regulation (EC) No 1907/2006
Substance/mixture not subjected to the provisions of Regulation (EC) No 1907/2006 (Annex XVII)

Statements that the goods are outside a rule's scope 1 condition

Some conditions are statements that a rule does not cover the goods, for example that the product is not on a controlled list.

Show the EU's own wording for this condition

Goods other than those described in the footnotes linked to the measure

Other conditions 3 conditions

These conditions match none of the groups above. Whether customs asks for one depends on the goods, where they come from and the customs procedure.

Show the EU's own wording for these conditions

Product not subjected to the provisions of Regulation (EU) 2024/1157
Information document accompanying shipments of waste as mentioned in Regulation (EU) 2024/1157 – Article 18 and Annex VII
Movement document as mentioned in Regulation (EU) 2024/1157 – Article 5 and Annex IB

Check this code in the official EU TARIC database

EU tariff measure data of Sept. 1, 2026.

One last classification check

Check the path and the nearest alternatives.

Use this view if you are still unsure the code describes the product precisely.

How we got to this code

VI
38
3815
3815 19
3815 19 90

Show the steps

The path to this code

Every level is settled. Open an earlier step if you need to change a choice.

Step 5 of 5 · Complete

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 38 Miscellaneous chemical products 11 of 11 chapters in section VI
Which specific product type is it: a carbon or mineral product, resin or terpentine product, pesticide, textile, paper or leather treatment, soldering or welding preparation, oil or fuel additive, rubber or plastic additive, fire-extinguishing preparation, solvent or paint remover, catalyst, refractory product, alkylbenzene or alkylnaphthalene mixture, doped electronic material, hydraulic fluid, antifreeze or de-icing liquid, culture substrate, diagnostic or laboratory reagent, fatty acid or fatty alcohol, foundry binder or other chemical preparation, chemical waste, biodiesel, or a mixture containing halogenated methane, ethane or propane derivatives?
✓
Step 3 · Heading 3815 Reaction initiators, reaction accelerators and cata… 15 of 27 headings under chapter 38
Is it a supported catalyst—and, if so, is its active substance nickel or nickel compounds, precious metal or precious metal compounds, or another substance?
✓
Step 4 · Subheading 3815 19 Supported catalysts, n.e.s. (excl. with precious me… 3 of 4 subheadings under heading 3815
Is it a catalyst in granule form where at least 90% by weight measures no more than 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate carrier, with copper content of at least 20% but no more than 35% by weight, bismuth content of at least 2% but no more than 3% by weight, and a tapped density of at least 0.2 but no more than 1.0?
✓
Step 5 · Full code 3815 19 90 Supported catalysts, n.e.s. (excl. supported cataly… 2 of 2 codes under subheading 3815 19

Compare with the codes next to it.

Compare the sibling codes at this level before you settle on this one.

Classification decides the rate here: from duty free to 6.5%.

another option 3815 19 10 Catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0 Duty free
you are here 3815 19 90 Supported catalysts, n.e.s. (excl. supported catalysts with precious metal, a precious-metal compound, nickel or a nickel compound as the active substance and catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0) 6.5%

Worth comparing

Codes that sit close to this one, for when the material itself could be different.

Browse chapter 38

Often confused with

3812 10 00 Prepared rubber accelerators 6.3%
That code names prepared vulcanisation accelerators, whereas this code excludes vulcanisation accelerators and covers supported catalysts.
3815 19 10 Catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0 Duty free
That code specifically names the fine-grain magnesium-silicate catalyst with the stated copper, bismuth and density conditions; this code excludes it.

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.

Supported catalysts, excluding precious-metal

The full EU export code is 3815 19 90.

What they charge on arrival.

Selling to Norway

Selling to Great Britain

Selling to the United States

Check the facts that sit outside the code

Pick the 10-digit line that matches the goods.

Read the signals first. Open only the ones you want to check.

Lower duty for goods from some countries

A limited quantity at a lower rate

Restrictions and paperwork

Check the path and the nearest alternatives.

Compare with the codes next to it.

Similar products elsewhere in the tariff

Often confused with

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