Code 3815 19 · Heading 3815

Supported catalysts without precious-metal or nickel active substances

This covers catalysts on a carrier that are not classified by an active substance of precious metal, precious-metal compounds, nickel or nickel compounds. It includes the specifically described fine magnesium-silicate granules and other supported catalysts within this scope.

For example

A supported catalyst with copper as the active substance, not containing precious metal or precious-metal compounds or nickel or nickel compounds as the active substance, and not the specifically described fine magnesium-silicate granules

See the official tariff text

Official tariff text

Supported catalysts, n.e.s. (excl. with precious metal, a precious-metal compound, nickel or a nickel compound as the active substance)

How we got to this code

VI
38
3815
3815 19

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 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?

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: 0.0–6.5%

2 codes below this one

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

Within the parent group, this is for supported catalysts that are not named as having precious metal or precious-metal compounds, nickel or nickel compounds as the active substance; other reaction initiators, reaction accelerators and catalytic preparations, and unsupported catalysts, belong elsewhere in the parent group.

Compare the sibling codes

See all 4 codes at this level

Classification decides the rate here: from 0.0% to 6.5%.

3815 11 Supported catalysts with nickel or a nickel compound as the active substance, n.e.s. 6.5%
3815 12 Supported catalysts with precious metal or a precious-metal compound as the active substance, n.e.s. 6.5%
3815 19 Supported catalysts, n.e.s. (excl. with precious metal, a precious-metal compound, nickel or a nickel compound as the active substance) you are here 0.0–6.5%
3815 90 Reaction initiators, reaction accelerators and catalytic preparations, n.e.s. (excl. rubber accelerators and supported catalysts) 0.0–6.5%

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

From 0.0% to 6.0%

Their lines12 British lines

3815 19 10 00 Catalyst in the form of grains of which 90|% or more by weight have a particle-size

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 12 British lines

Selling to Great Britain

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

3815 19 10 00

Catalyst in the form of grains of which 90|% or more by weight have a particle-size not exceeding 10|micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight: -|20|% or more but not more than 35|% of copper and -|2|% or more but not more than 3|% of bismuth, and of an apparent specific gravity of 0,2|or more but not exceeding 1,0

Ordinary duty

Duty free
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)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3815 19 90 30

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

Ordinary duty

6.0%

Goods of EU origin

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

Ordinary duty

6.0%

Goods of EU origin

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

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3815 19 90 70

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

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3815 19 90 75

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

Ordinary duty

6.0%

Goods of EU origin

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

Ordinary duty

6.0%

Goods of EU origin

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

Show all 12 lines

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

Ordinary duty

6.0%

Goods of EU origin

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

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3815 19 90 86

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

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
3815 19 90 90

Other

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.

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.