Norway
Duty free*
- Their lines1 Norwegian line
38.18.0000 Chemical elements doped for use in electronics, in the form of discs, wafers
Norwegian tariff data checked Sept. 13, 2026.
Customs code · HS subheading 3818 00
Doped silicon wafers for electronics
Including polished or uniformly epitaxial-coated wafers
This covers doped silicon for electronic use in the form of wafers, plates or similar shapes. The wafers may be polished or have a uniform epitaxial coating, but not be in a more advanced form such as one made by selective diffusion.
For example
- A polished doped silicon wafer for electronic use
- A doped silicon wafer for electronic use with a uniform epitaxial coating
See the official tariff text
Official Danish tariff text
Silicium, doteret til anvendelse i elektronikken, i form af skiver, plader "wafers" eller lignende, også polerede eller overtrukket med et ensartet epitaksialt lag (undtagen mere forarbejdede former, f.eks. gennem selektiv diffusion)
until Aug. 3, 2026
This code is no longer in use. See the current codes under 3818 00:
- 3818 00 11 Doped silicon wafers of a thickness <=200μm, rectangular, whether or not with cut or rounded corners "photovoltaic wafers"
- 3818 00 19 Silicon doped for use in electronics, in the form of discs, wafers, cylinders, rods or similar forms, whether or not polished or with a uniform epitaxial coating (excl. elements that have been further processed, e.g. by selective diffusion, and "photovoltaic" rectangular wafers of a thickness <=200μm)
- 3818 00 90 Chemical elements and compounds doped for use in electronics, in the form of discs, wafers, cylinders, rods or similar forms, or cut into discs, wafers or similar forms, whether or not polished or with a uniform epitaxial coating (excl. elements that have been further processed, e.g. by selective diffusion, and doped silicon)
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.
Great Britain
Duty free*
- Their lines3 British lines
3818 00 11 00 Wafers of a thickness not exceeding 200|micrometres, rectangular, whether or not with cut
Northern Ireland follows other rules.
UK tariff data checked Sept. 13, 2026.
United States
0.0%†
Estimated from published US measures
- Their lines7 US lines
- Entry dateSept. 17, 2026
3818.00.00.10 Chemical elements doped for use in electronics, in the form of discs, wafers
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.
-
38.18.0000
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics.
- Ordinary duty
- Duty free*
Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.
See the 3 British lines
Selling to Great Britain
What UK customs charges when goods like these arrive in Great Britain.
-
All 3 UK lines under this code
They all have the same duty rates shown here.
- Ordinary duty
- Duty free*
These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.
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 7 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.
-
3818.00.00.10
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, Gallium arsenide wafers, doped
- 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
-
3818.00.00.20
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, Polycrystalline silicon wafers, doped
- 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
-
3818.00.00.30
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, Silicon carbide wafers, doped
- 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
-
3818.00.00.40
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, Monocrystalline silicon wafers, doped, Round (circular) shaped, as described in statistical note 2 to this chapter
- 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
-
3818.00.00.45
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, Monocrystalline silicon wafers, doped, Pseudo-square or rectangular in shape, as described in statistical note 3 to this chapter
- 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
-
3818.00.00.50
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, Monocrystalline silicon wafers, doped, 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
-
3818.00.00.91
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics, 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
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.
- 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.
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
- +12 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).
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
Restrictions and paperwork
Important
Import restrictions are recorded for goods originating in:
- Ukraine
- North Korea (Democratic People’s Republic of Korea)
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 2 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
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
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.
Show the steps
Compare with the codes next to it.
Compare the sibling codes at this level before you settle on this one.
-
you are here 3818 00 10 Silicium, doteret til anvendelse i elektronikken, i form af skiver, plader "wafers" eller lignende, også polerede eller overtrukket med et ensartet epitaksialt lag (undtagen mere forarbejdede former, f.eks. gennem selektiv diffusion) Duty free*
- another option 3818 00 11 Doped silicon wafers of a thickness <=200μm, rectangular, whether or not with cut or rounded corners "photovoltaic wafers" Duty free*
- another option 3818 00 19 Silicon doped for use in electronics, in the form of discs, wafers, cylinders, rods or similar forms, whether or not polished or with a uniform epitaxial coating (excl. elements that have been further processed, e.g. by selective diffusion, and "photovoltaic" rectangular wafers of a thickness <=200μm) Duty free*
- another option 3818 00 90 Chemical elements and compounds doped for use in electronics, in the form of discs, wafers, cylinders, rods or similar forms, or cut into discs, wafers or similar forms, whether or not polished or with a uniform epitaxial coating (excl. elements that have been further processed, e.g. by selective diffusion, and doped silicon) Duty free*
Worth comparing
Codes that sit close to this one, for when the material itself could be different.
Similar products elsewhere in the tariff
- 2804 61 00 Silicon containing >= 99,99% by weight of silicon Duty free*
- 2804 69 00 Silicon containing < 99,99% by weight of silicon 5.5%*
- 2811 22 00 Silicon dioxide 4.6%*
- 2839 90 00 Silicates, incl. commercial alkali metal silicates (excl. sodium silicates) 5.0%*
- 2839 19 00 Silicates of sodium, incl. commercial silicates (excl. sodium metasilicates) 5.0%*
Often confused with
-
2804 61 00
Silicon containing >= 99,99% by weight of silicon
Duty free*
That code is for silicon with a silicon content of >= 99.99% by weight, while this code describes doped silicon in wafer, plate or similar form for electronic use.
-
2804 69 00
Silicon containing < 99,99% by weight of silicon
5.5%*
That code is for silicon with a silicon content of < 99.99% by weight, while this code describes doped silicon in wafer, plate or similar form for electronic use.
-
3818 00 90
Chemical elements and compounds doped for use in electronics, in the form of discs, wafers, cylinders, rods or similar forms, or cut into discs, wafers or similar forms, whether or not polished or with a uniform epitaxial coating (excl. elements that have been further processed, e.g. by selective diffusion, and doped silicon)
Duty free*
That code covers the other doped chemical elements or compounds in the specified electronic forms and expressly excludes doped silicon.
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.