HS 282630 Sodium hexafluoroaluminate (synthetic cryolite)
Quick Answer: HS code 282630 covers synthetic cryolite, chemically known as sodium hexafluoroaluminate. This inorganic compound is primarily used in the aluminum industry as a solvent for aluminum oxide in the electrolytic production of aluminum, and also finds applications as a flux in glass and ceramic manufacturing, and in the production of pesticides. For importers and exporters, understanding the varying duty rates is crucial. The United Kingdom applies a 0.00% duty rate, while the European Union imposes a 5.50% ad valorem duty. In the United States, imports of synthetic cryolite are duty-free. These differences highlight the importance of origin and destination in customs planning.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2826300000 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2826300000 | 5.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2826300000 | Free | — | ["t"] |
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
How Has Trade Volume Developed?
How to Classify This HS Code?
What products does HS 282630 cover?
This subheading covers synthetic sodium hexafluoroaluminate, commonly known as synthetic cryolite. It is a chemical compound with the formula Na3AlF6, produced artificially, distinguishing it from naturally occurring cryolite. The WCO Harmonized System Explanatory Notes for Chapter 28 and Heading 2826 specifically identify "sodium hexafluoroaluminate (synthetic cryolite)" as falling within this particular subheading. This product is primarily used as a solvent for aluminum oxide in the electrolytic production of aluminum, and also finds applications in the manufacture of abrasives, ceramics, and enamels, due to its fluxing properties and low melting point.
What falls outside HS 282630?
The following products are excluded from HS 282630: natural cryolite, which is classified under Heading 2529 as "Feldspar; leucite; nepheline and nepheline syenite; fluorspar; cryolite and chiolite." While chemically identical, the distinction between natural and synthetic origin is critical for classification purposes, as Chapter 25 is dedicated to mineral products. Additionally, mixtures containing synthetic cryolite, but where the cryolite is not the predominant component or where the mixture constitutes a preparation of Chapter 38, would be excluded. For instance, specific preparations for the aluminum industry might fall under Heading 3824 if they are not simply pure synthetic cryolite.
What are common classification mistakes for HS 282630?
A common error is misclassifying natural cryolite under HS 282630 due to its chemical identity with the synthetic form. Importers must strictly adhere to the "synthetic" qualifier in the subheading description. Another mistake involves classifying mixtures or preparations containing synthetic cryolite under this subheading when, according to General Interpretative Rule (GRI) 3(b), the essential character of the product is imparted by another component or it constitutes a specific preparation of a different chapter. For example, a flux preparation for welding containing synthetic cryolite along with other chemicals would likely be classified under Chapter 38, specifically Heading 3810, rather than as pure synthetic cryolite.
How should importers classify products under HS 282630?
The correct procedure for classifying products under HS 282630 involves first confirming the product's chemical identity as sodium hexafluoroaluminate (Na3AlF6) and, crucially, verifying its synthetic origin. Importers and customs brokers should obtain a certificate of analysis or a manufacturer's declaration explicitly stating that the product is synthetically produced. If the product is of natural origin, it must be classified under Heading 2529. If the product is part of a mixture or preparation, GRI 1 and subsequent GRIs, particularly GRI 3(b) for mixtures, must be applied to determine the correct heading and subheading, ensuring that the synthetic cryolite is indeed the sole or essential character-imparting component for classification under 282630.
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FAQ
What is the Most Favored Nation (MFN) import duty rate for synthetic cryolite (HS 2826.30) into the United States, European Union, and United Kingdom?
For the United States, the MFN (Normal Trade Relations) import duty rate for HS 2826.30 (Sodium hexafluoroaluminate, synthetic cryolite) is 0.00% ad valorem as per the Harmonized Tariff Schedule of the United States (HTSUS). In the European Union, the MFN duty rate for HS 2826.30.00 is 5.50% ad valorem according to the TARIC database. For the United Kingdom, the MFN duty rate for HS 2826.30.00 is Free as per the UK Global Tariff. Importers should always verify current rates on the official USITC HTSUS, EU TARIC, or UK Trade Tariff websites.
Are there any preferential duty rates available for synthetic cryolite (HS 2826.30) under common trade agreements?
Yes, preferential duty rates may apply depending on the country of origin and applicable trade agreements. For imports into the United States, synthetic cryolite from countries eligible for Generalized System of Preferences (GSP) or certain free trade agreements (e.g., USMCA, CAFTA-DR) may be Free. For the EU, preferential rates (often 'Free') are available under agreements such as those with the UK (TCA), South Korea, or Japan, provided the rules of origin are met. Similarly, the UK offers preferential 'Free' rates under its various Free Trade Agreements. Importers must ensure they have the correct origin documentation (e.g., Certificate of Origin) to claim preferential treatment.
What are the key classification criteria for HS 2826.30 'Sodium hexafluoroaluminate (synthetic cryolite)'?
HS 2826.30 specifically covers 'Sodium hexafluoroaluminate (synthetic cryolite)'. The primary classification criterion is the chemical identity of the substance. It must be synthetic sodium hexafluoroaluminate, distinguishing it from natural cryolite (which falls under Chapter 25 as a mineral). The WCO Explanatory Notes for Chapter 28, specifically Heading 28.26, clarify that this heading covers fluorides, fluorosilicates, fluoroaluminates, and other complex fluorine salts. The 'synthetic' aspect is crucial, as it indicates a manufactured chemical product rather than a naturally occurring mineral. Importers should ensure their product's chemical composition and manufacturing process align with this description.
What documentation is typically required for importing synthetic cryolite (HS 2826.30)?
Standard import documentation includes a commercial invoice, packing list, and bill of lading or air waybill. For chemical products like synthetic cryolite, a Safety Data Sheet (SDS) is often required by customs authorities and regulatory bodies (e.g., EPA in the US, ECHA in the EU) to assess any potential hazards and ensure compliance with chemical regulations. If claiming preferential duty rates, a Certificate of Origin (e.g., EUR.1, NAFTA/USMCA Certificate, or a free trade agreement declaration) is mandatory. Depending on the end-use or specific national regulations, additional permits or licenses related to chemical imports might be necessary, though HS 2826.30 is generally not subject to stringent controls like certain hazardous or dual-use chemicals.