Subheading · Chapter 38 · Heading 3818
3818.00: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
Doped chemical elements for electronics (wafers)
3818.00 is the HS subheading for doped chemical elements for electronics (wafers), under heading 3818 in chapter 38.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 3818 00 11 00 Wafers of a thickness not exceeding 200 micrometres, rectangular, whether or not with cut or rounded corners (so-called photovoltaic wafers) Free
- 3818 00 19 00 Other Free
- 3818 00 90 00 Other Free
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 1
- Additional dutyAdditional duties 35%
- Applies to goods from
- Belarus, Russia
- Legal act
- 2022 No. 598
- Documents
- 9014
Import requirements 3
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Ukraine
- Legal act
- S.I. 2022/395
- Documents
- 9009
- 9010
- 9017
- Import controlImport control on restricted goods and technologies
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Documents
- Y920 Goods other than those described in the footnotes linked to the measure
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | Free |
| DCTS Comprehensive | Afghanistan, Angola, Bangladesh, Benin and 38 moreAfghanistan, Angola, Bangladesh, Benin, Bhutan, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo - Kinshasa, Djibouti, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Kiribati, Laos, Liberia, Malawi, Mali, Mauritania, Myanmar (Burma), Nepal, Niger, Rwanda, São Tomé & Príncipe, Senegal, Sierra Leone, Somalia, South Sudan, Sudan, Tanzania, Timor-Leste, Togo, Tuvalu, Uganda, Yemen, Zambia | Free |
| European Union (including code "EU") | Free | |
| DCTS Enhanced | Algeria, Bolivia, Cape Verde, Congo - Brazzaville and 13 moreAlgeria, Bolivia, Cape Verde, Congo - Brazzaville, Cook Islands, Kyrgyzstan, Micronesia, Mongolia, Nigeria, Niue, Pakistan, Philippines, Sri Lanka, Syria, Tajikistan, Uzbekistan, Vanuatu | Free |
| CARIFORUM | Antigua & Barbuda, Bahamas, Barbados, Belize and 10 moreAntigua & Barbuda, Bahamas, Barbados, Belize, Dominica, Dominican Republic, Grenada, Guyana, Jamaica, St Kitts & Nevis, St Lucia, St Vincent & the Grenadines, Suriname, Trinidad & Tobago | Free |
| OCTs (Overseas Countries and Territories) | Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands and 7 moreAnguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Montserrat, Pitcairn Islands, South Georgia & South Sandwich Islands, St Helena, Turks & Caicos Islands | Free |
| SADC EPA | Botswana, Eswatini, Lesotho, Mozambique, Namibia | Free |
| CPTPP | Brunei, Chile, Malaysia, Mexico | Free |
| Eastern and Southern Africa States | Madagascar, Mauritius, Seychelles, Zimbabwe | Free |
| UK–Andorra agreement | Andorra | Free |
| UK–Albania agreement | Albania | Free |
| UK–Australia agreement | Australia | Free |
| UK–Canada agreement | Canada | Free |
| UK–Switzerland agreement | Switzerland | Free |
| UK–Côte d’Ivoire agreement | Côte d’Ivoire | Free |
| UK–Cameroon agreement | Cameroon | Free |
| UK–Colombia agreement | Colombia | Free |
| UK–Ceuta & Melilla agreement | Ceuta & Melilla | Free |
| UK–Ecuador agreement | Ecuador | Free |
| UK–Egypt agreement | Egypt | Free |
| UK–Fiji agreement | Fiji | Free |
| UK–Faroe Islands agreement | Faroe Islands | Free |
| UK–Georgia agreement | Georgia | Free |
| UK–Ghana agreement | Ghana | Free |
| DCTS Standard | Indonesia | Free |
| UK–India agreement | India | Free |
| UK–Iceland agreement | Iceland | Free |
| UK–Jordan agreement | Jordan | Free |
| UK–Japan agreement | Japan | Free |
| UK–Kenya agreement | Kenya | Free |
| UK–South Korea agreement | South Korea | Free |
| UK–Liechtenstein agreement | Liechtenstein | Free |
| UK–Morocco agreement | Morocco | Free |
| UK–Moldova agreement | Moldova | Free |
| UK–North Macedonia agreement | North Macedonia | Free |
| UK–Norway agreement | Norway | Free |
| UK–New Zealand agreement | New Zealand | Free |
| UK–Peru agreement | Peru | Free |
| UK–Papua New Guinea agreement | Papua New Guinea | Free |
| UK–Palestinian Territories agreement | Palestinian Territories | Free |
| UK–Serbia agreement | Serbia | Free |
| UK–Solomon Islands agreement | Solomon Islands | Free |
| UK–Singapore agreement | Singapore | Free |
| UK–San Marino agreement | San Marino | Free |
| UK–Ukraine agreement | Ukraine | Free |
| UK–Vietnam agreement | Vietnam | Free |
| UK–Samoa agreement | Samoa | Free |
| UK–Kosovo agreement | Kosovo | Free |
| UK–South Africa agreement | South Africa | Free |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 China | £32m | 30.5% | +76.5% |
 Japan | £24m | 22.8% | +106.7% |
 United States | £22.8m | 21.7% | -6.6% |
 Taiwan | £5.7m | 5.4% | +8.5% |
 Germany | £5m | 4.8% | +12.7% |
 France | £3.7m | 3.6% | -16% |
 Netherlands | £2.5m | 2.4% | +27.1% |
| United Kingdom | £2.3m | 2.2% | +4.1% |
Same subheading in other tariffs
EU
TürkiyeWorld trade in 2024
Trade value (US$) no reported trade < US$779kUS$779k+US$20m+US$692m+> US$2bn
Exports: 87
- Japan: US$5bn
- China: US$4bn
- United States: US$2bn
- Taiwan: US$1bn
- South Korea: US$1bn
- Germany: US$1bn
- Singapore: US$978m
- France: US$692m
- Vietnam: US$518m
- Malaysia: US$337m
- Czechia: US$269m
- Italy: US$237m
- United Kingdom: US$162m
- Finland: US$82m
- Thailand: US$46m
- Cambodia: US$30m
- Netherlands: US$28m
- Indonesia: US$27m
- Belgium: US$26m
- Sweden: US$20m
- Austria: US$18m
- Denmark: US$17m
- Switzerland: US$8m
- Hong Kong SAR China: US$8m
- Israel: US$7m
- Lithuania: US$6m
- Ireland: US$6m
- Philippines: US$5m
- Russia: US$5m
- Norway: US$3m
- Poland: US$3m
- India: US$2m
- Spain: US$2m
- Canada: US$2m
- Slovakia: US$1m
- Malta: US$1m
- Ukraine: US$1m
- Australia: US$1m
- Portugal: US$1m
- Hungary: US$779k
- South Africa: US$678k
- Kazakhstan: US$662k
- Bulgaria: US$535k
- Romania: US$517k
- Laos: US$477k
- Costa Rica: US$409k
- Armenia: US$210k
- Croatia: US$186k
- Curaçao: US$177k
- Belarus: US$173k
- Türkiye: US$170k
- Greece: US$135k
- Brazil: US$121k
- North Korea: US$102k
- New Zealand: US$78k
- Mexico: US$58k
- Saudi Arabia: US$51k
- Cameroon: US$40k
- Slovenia: US$38k
- Georgia: US$31k
Trade value (US$) no reported trade < US$42kUS$42k+US$2m+US$223m+> US$1bn
Imports: 153
- Taiwan: US$3bn
- South Korea: US$3bn
- China: US$2bn
- United States: US$2bn
- Singapore: US$1bn
- Japan: US$1bn
- Malaysia: US$943m
- Thailand: US$814m
- Germany: US$711m
- France: US$475m
- Italy: US$403m
- Austria: US$387m
- Indonesia: US$320m
- Vietnam: US$292m
- Hong Kong SAR China: US$223m
- India: US$188m
- Israel: US$180m
- Türkiye: US$143m
- Cambodia: US$119m
- Czechia: US$113m
- Netherlands: US$97m
- United Kingdom: US$95m
- Ireland: US$77m
- Laos: US$71m
- Philippines: US$52m
- Switzerland: US$43m
- Belgium: US$38m
- Sweden: US$22m
- Russia: US$18m
- Canada: US$16m
- Spain: US$9m
- Denmark: US$9m
- Brazil: US$5m
- Finland: US$4m
- Australia: US$3m
- United Arab Emirates: US$2m
- Poland: US$2m
- Saudi Arabia: US$1m
- Norway: US$1m
- Lithuania: US$1m
- Portugal: US$1m
- Belarus: US$1m
- Mexico: US$1m
- Hungary: US$900k
- Slovakia: US$719k
- Slovenia: US$672k
- Kazakhstan: US$573k
- Lesotho: US$473k
- Macao SAR China: US$379k
- Morocco: US$309k
- Greece: US$253k
- Guatemala: US$230k
- Latvia: US$228k
- Armenia: US$186k
- Uzbekistan: US$175k
- Luxembourg: US$174k
- Honduras: US$142k
- Andorra: US$117k
- Romania: US$113k
- Chile: US$113k
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | Japan | US$5bn | 28.1% |
| 2 | China | US$4bn | 22.4% |
| 3 | United States | US$2bn | 10.1% |
| 4 | Taiwan | US$1bn | 7.5% |
| 5 |  South Korea | US$1bn | 6.1% |
| 6 | Germany | US$1bn | 5.8% |
| 7 |  Singapore | US$978m | 5.5% |
| 8 | France | US$692m | 3.9% |
| 9 |  Vietnam | US$518m | 2.9% |
| 10 |  Malaysia | US$337m | 1.9% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | Taiwan | US$3bn | 16.6% |
| 2 | South Korea | US$3bn | 14.1% |
| 3 | China | US$2bn | 13.5% |
| 4 | United States | US$2bn | 8.7% |
| 5 | Singapore | US$1bn | 7.2% |
| 6 | Japan | US$1bn | 6.8% |
| 7 | Malaysia | US$943m | 5.3% |
| 8 |  Thailand | US$814m | 4.6% |
| 9 | Germany | US$711m | 4% |
| 10 | France | US$475m | 2.7% |
Binding rulings for similar goods 1
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N332099 U.S. CBP
The tariff classification of Doped Chemical Compounds from Russia
The UK Global Tariff divides subheading 3818.00 into 3 tariff lines; the duty is duty-free.
In the EU Combined Nomenclature, subheading 3818.00 covers 3 tariff lines and the duty is duty-free.
164 countries pay no duty in the UK thanks to trade agreements and preference schemes such as DCTS Comprehensive and European Union, against a standard rate of Free.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
Imports of doped chemical elements for electronics (wafers) into the UK came to £105m between September 2025 and August 2026 (up 34% on the year before); China supplied 31%, followed by Japan.
In 2024, countries exported doped chemical elements for electronics (wafers) worth US$18bn (−15.1% year on year).
The largest exporter was Japan (US$5bn), followed by China.
Questions and answers
What is the HS code for chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics?
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics fall under HS subheading 3818.00, part of heading 3818, in section VI of the Harmonized System.
What is the import duty on chemical elements doped for use in electronics… in the UK?
Under the UK Global Tariff, imports under 3818.00 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on chemical elements doped for use in electronics… in the EU?
Under the EU Combined Nomenclature, imports under 3818.00 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most chemical elements doped for use in electronics…?
Japan, with US$5bn in 2024 (28.1% of world exports).
Which countries can export doped chemical elements for electronics (wafers) to the UK duty-free?
164 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, DCTS Enhanced. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of Free applies. Pick a country above to see its rate.
Is there anti-dumping duty on doped chemical elements for electronics (wafers)?
The UK charges additional duty of 35% on goods from Belarus and Russia. Lower rates apply to the named exporters listed in the measure.
Where does the UK import doped chemical elements for electronics (wafers) from?
In the 12 months to August 2026, the largest suppliers were China (31%), Japan (23%) and United States (22%), out of total imports of £105m.