Chapter 28 · Inorganic chemicals · Section 6
HS Code 2818.10
Artificial corundum, whether or not chemically defined
Heading 2818: Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide
US HTS + UK Tariff v4.0.1633 · updated 2026-10-21 · sources
Rates on this page are the official published schedule rates, shown for information. This is not a customs ruling: preference programs, Section 232/301 surcharges and per-shipment fees can change what you actually pay.
United States - HTS lines under 2818.10
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 2818.10.10 | Crude | Free | - | Free | t |
| 2818.10.20 |
In grains, or ground, pulverized or refined 2 statistical lines (10-digit)
|
1.3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 4.1% | kg |
Estimate the US duty runs in your browser · no caps
Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 2818.10
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 2818 10 19 | With 50 % or more of the total weight having a particle size of more than 10 mm | EU duty (TARIC) → |
| 2818 10 11 | With less than 50 % of the total weight having a particle size of more than 10 mm | EU duty (TARIC) → |
| 2818 10 99 | With 50 % or more of the total weight having a particle size of more than 10 mm | EU duty (TARIC) → |
| 2818 10 91 | With less than 50 % of the total weight having a particle size of more than 10 mm | EU duty (TARIC) → |
| 2818 10 00 | Artificial corundum, whether or not chemically defined | EU duty (TARIC) → |
United Kingdom - commodity codes under 2818.10
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 2818 10 00 00 | Artificial corundum, whether or not chemically defined | UK duty & VAT → |
| 2818 10 11 00 | With less than 50|% of the total weight having a particle size of more than 10|mm | UK duty & VAT → |
| 2818 10 11 10 | Sol-Gel corundum (CAS RN 1302-74-5) with an aluminium oxide content of 99,6 % or more by weight, having a micro crystalline structure in the form of rods with an aspect ratio of 1,3 or more, but not more than 6,0 | UK duty & VAT → |
| 2818 10 11 20 | Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (CAS RN 1344-28-1) and magnesium aluminate (CAS RN 12068-51-8), with a content by weight (calculated as oxides) of: -92 % or more of aluminium oxide, and -8 % or less of magnesium oxide | UK duty & VAT → |
| 2818 10 11 30 | Sintered Sol-Gel corundum or pre-sintered Sol-Gel with an aluminium oxide content of 99,6% or more by weight, having a microcrystalline structure in the form of rods with an aspect ratio of 1,3 or more, but not more than 6,0 | UK duty & VAT → |
| 2818 10 11 40 | Sintered Sol-Gel corundum or pre-sintered Sol-Gel with a microcrystalline structure, consisting of aluminium oxide, with a composition by weight (as oxides) of at least 98,5% aluminium oxide, other than with an aluminium oxide content of 99,6% or more by weight, having a microcrystalline structure in the form of rods with an aspect ratio of 1,3 or more, but not more than 6,0 | UK duty & VAT → |
| 2818 10 11 91 | Fused alumina where both of the following apply: (i) between 5% and 35% of the product by weight is below the lowest grain size limit set out in the specification for the product and; (ii) between 1% and 10% of the product by weight is above the upper grain size limit set out in the specification for the product | UK duty & VAT → |
| 2818 10 11 99 | Other | UK duty & VAT → |
| 2818 10 19 00 | With 50|% or more of the total weight having a particle size of more than 10|mm | UK duty & VAT → |
| 2818 10 91 00 | With less than 50|% of the total weight having a particle size of more than 10|mm | UK duty & VAT → |
| 2818 10 91 20 | Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (CAS|RN|1344-28-1), magnesium aluminate (CAS|RN|12068-51-8) and the rare earth aluminates of yttrium, lanthanum, and neodymium, with a content by weight (calculated as oxides) of: -|92|% or more, but less than 98,5|% of aluminium oxide, -|2|% (± 1,5|%) of magnesium oxide, -|1|% (± 0,6|%) of yttrium oxide, and -|either 3|% (± 2,2|%) of lanthanum oxide or -|2|% (± 1,2|%) of lanthanum oxide and neodymium oxide, with less than 50|% of the total weight having a particle size of more than 10|mm | UK duty & VAT → |
| 2818 10 91 30 | Sintered corundum with a micro crystalline structure, consisting of aluminium oxide (CAS RN 1344-28-1) and magnesium aluminate (CAS RN 12068-51-8), with a content by weight (calculated as oxides) of: -92 % or more, but not more than 94 % of aluminium oxide, and -8 % (± 1 %) of magnesium oxide | UK duty & VAT → |
| 2818 10 91 40 | Sintered Sol-Gel corundum or pre-sintered Sol-Gel with a microcrystalline structure, consisting of aluminium oxide, with a composition by weight (as oxides) of at least 92% but less than 98.5% aluminium oxide | UK duty & VAT → |
| 2818 10 91 91 | Fused alumina with a titanium dioxide content of 1% by weight or more, where both of the following apply: (i) between 5% and 35% of the product by weight is below the lowest grain size limit set out in the specification for the product and; (ii) between 1% and 10% of the product by weight is above the upper grain size limit set out in the specification for the product | UK duty & VAT → |
| 2818 10 91 99 | Other | UK duty & VAT → |
| 2818 10 99 00 | With 50|% or more of the total weight having a particle size of more than 10|mm | UK duty & VAT → |
Nearby codes in heading 2818
The subheadings immediately before and after 2818.10 in chapter 28.
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.
Frequently asked questions
Common questions about HS code 2818.10.
What is HS code 2818.10?
HS code 2818.10 covers: Artificial corundum, whether or not chemically defined. It belongs to chapter 28 (Inorganic chemicals) of the Harmonized System.
What is the US import duty for HS code 2818.10?
The US general (normal trade relations) rates under this subheading range: Free - 1.3%. Preference programs and Section 232/301 surcharges can change the effective rate; see the HTS lines for detail.
What is the UK commodity code for 2818.10?
The UK extends 2818.10 to 16 declarable 10-digit commodity codes, starting with 2818100000. The full code goes on the UK customs declaration.