HS 285000 Hydrides; nitrides

Quick Answer: HS code 285000 encompasses inorganic hydrides and nitrides, which are chemical compounds formed when hydrogen or nitrogen bonds with other elements. This heading covers a range of industrial chemicals, from simple binary compounds like lithium hydride to more complex nitrides used in advanced materials. Importers and exporters should be aware of the varying duty rates: the UK generally applies a 4.00% ad valorem duty, while the EU typically ranges from 4.60% to 5.50% ad valorem. In the US, rates vary significantly, from Free to 25% ad valorem, depending on the specific chemical and its end-use. Precise classification to the 8-digit or 10-digit level is crucial to determine the exact duty rate and ensure compliance with chemical import regulations.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
2850002010 4.00 %
2850002060 4.00 %
2850002080 4.00 %
2850006000
2850002000

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
2850002080 4.60 %
2850006000 5.50 %
2850006019 5.50 %
2850006095 5.50 %
2850002000 4.60 %

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
2850000500 Free ["kg"]
2850001000 5.5% Free (17 programs) ["kg","W kg"]
2850005000 3.7% Free (17 programs) ["kg"]
285000
2850000700 4.9% Free (17 programs) ["kg"]

Special rates available under trade agreements including USMCA, KORUS, GSP.

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.

Which Trade Agreements Reduce Duties for HS 2850.00?

Imports of Hydrides; nitrides may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.

United States (HTSUS)

Free for USMCA, KORUS, GSP, and 16 other programs

European Union (TARIC)

Preferential rate data not yet available.

United Kingdom

Preferential rate data not yet available.

Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.

Data compiled by HSRates.

Which Preferential Rates Apply to Your Origin Country?

Select an origin country to see if preferential rates apply.

Preferential rates based on available trade agreements. Actual rates may vary.

How Has Trade Volume Developed?

How to Classify This HS Code?

What products does HS 285000 cover?

This subheading covers hydrides, nitrides, azides, silicides, and borides, which are chemical compounds formed between hydrogen or nitrogen (or silicon or boron) and another element, typically a metal or metalloid. Specifically, the Harmonized System Explanatory Notes for Heading 2850 clarify that this includes compounds such as lithium hydride (LiH), calcium hydride (CaH2), and sodium azide (NaN3), provided they are chemically defined. The USITC Harmonized Tariff Schedule and the EU TARIC system both align with the WCO's interpretation, encompassing these specific inorganic compounds in their pure or commercially pure forms, essential for various industrial applications from chemical synthesis to energy storage.

What falls outside HS 285000?

The following products are excluded from HS 285000: carbides (classified under Heading 2849), which are compounds of carbon with another element, typically a metal or metalloid, and certain organic compounds that contain hydride or nitride functionalities but are more specifically defined elsewhere in Chapters 29 or 30. For instance, complex organic nitrogen compounds like amines or amides, even if they contain nitrogen, are classified in Chapter 29 due to their organic structure. Additionally, alloys that contain hydrides or nitrides as minor components, but whose primary character is that of an alloy, would be classified under the relevant metal chapters (e.g., Chapter 72 for iron and steel).

What are common classification mistakes for HS 285000?

A common error is misclassifying complex compounds containing hydrogen or nitrogen that are not true hydrides or nitrides as defined by Heading 2850. For example, some importers incorrectly classify certain organic nitrogen compounds or even simple mixtures containing these elements under 285000, rather than their more specific headings in Chapter 29 or 38. Another frequent mistake involves overlooking the "chemically defined" criterion; mixtures or solutions where the hydride or nitride is not the predominant or defining component should be classified according to their essential character, often leading to classification under Chapter 38 for miscellaneous chemical products, in accordance with General Interpretative Rule 3(b).

How should importers classify products under HS 285000?

The correct procedure for classifying products under HS 285000 involves first verifying that the product is a chemically defined hydride, nitride, azide, silicide, or boride, as per the WCO Explanatory Notes for Heading 2850. Importers and customs brokers should obtain a detailed chemical analysis or specification sheet from the manufacturer, confirming the exact chemical composition and purity. If the product is a mixture, General Interpretative Rule 3(b) must be applied to determine if the hydride or nitride imparts the essential character. Consulting the USITC Harmonized Tariff Schedule or EU TARIC system's specific notes and rulings for Heading 2850 can provide further clarity and ensure accurate classification, avoiding potential delays or penalties.

Which HS Codes Are Related?

Not the right code? Search all HS codes to find the correct tariff classification.

FAQ

What is the general import duty rate for products classified under HS 2850.00 (Hydrides; nitrides) in key markets, and are there significant variations?

The Most Favored Nation (MFN) duty rates for HS 2850.00 can vary significantly by importing country. For instance, the United States generally applies a 4.0% ad valorem duty rate to most MFN countries. The European Union's TARIC database indicates a 5.5% ad valorem duty for many hydrides and nitrides. The UK Global Tariff also lists a 5.5% ad valorem rate. However, some countries, particularly developing nations or those with specific trade policies, may apply different rates, potentially including 'Free' or higher rates such as 25% for certain specific substances or origins. Importers should always verify the specific duty rate applicable to their product's origin and destination using the official tariff database of the importing country (e.g., USITC HTSUS, EU TARIC, UK Trade Tariff).

What are the primary classification criteria for distinguishing between different substances within HS 2850.00, and how does this impact customs classification?

HS 2850.00 specifically covers 'Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49.' The key classification criteria revolve around the chemical composition and structure of the compound. Importers must accurately identify if the substance is a hydride (compound of hydrogen with another element), nitride (compound of nitrogen with another element), azide, silicide, or boride. Crucially, the exclusion of compounds that are also carbides of heading 28.49 means that if a substance fits both descriptions, it must be classified under 28.49. Accurate chemical identification, often requiring a Certificate of Analysis (CoA) or Safety Data Sheet (SDS), is vital to ensure correct classification and avoid misdeclaration penalties. The WCO Explanatory Notes for Chapter 28 provide detailed guidance on these chemical definitions.

Which major trade agreements offer preferential duty rates for hydrides and nitrides under HS 2850.00, and what documentation is typically required to claim these benefits?

Several major trade agreements can offer preferential duty rates, often reducing the MFN rate to 'Free' or a significantly lower percentage. For example, under the United States-Mexico-Canada Agreement (USMCA), qualifying goods originating from Mexico or Canada would typically enter the U.S. duty-free. Similarly, goods originating from countries with Free Trade Agreements (FTAs) with the EU (e.g., EU-Japan EPA, EU-South Korea FTA) or the UK (e.g., UK-Japan CEPA) may also qualify for preferential treatment. To claim these benefits, importers generally need to provide a Certificate of Origin or an origin declaration (e.g., USMCA Certification of Origin, EUR.1 movement certificate, or an origin declaration on a commercial invoice) demonstrating that the goods meet the specific Rules of Origin criteria outlined in the respective trade agreement. Customs brokers require this documentation to properly declare the goods under the preferential tariff.

Are there specific documentation requirements beyond standard shipping documents for importing hydrides and nitrides under HS 2850.00, especially concerning safety or chemical regulations?

Yes, beyond standard commercial invoices, packing lists, and bills of lading/air waybills, importing substances under HS 2850.00 often requires additional documentation related to chemical safety and regulatory compliance. Depending on the specific hydride or nitride, and the importing country's regulations, importers may need to provide:

  1. Safety Data Sheets (SDS): Essential for identifying hazards, safe handling, and emergency procedures.
  2. Certificates of Analysis (CoA): Verifying the chemical composition, purity, and specifications.
  3. Chemical Registration/Notification: Some countries (e.g., under REACH in the EU, TSCA in the US) require registration or notification for new or certain existing chemical substances before they can be imported or placed on the market.
  4. Permits/Licenses: For highly hazardous or controlled substances, specific import permits from environmental or chemical regulatory agencies may be mandatory. Importers should consult the relevant national chemical control laws and regulations of the destination country prior to shipment.