HS 285310 Cyanogen chloride (chlorcyan)

Quick Answer: HS code 285310 specifically covers Cyanogen chloride (chlorcyan), a highly toxic chemical compound. This classification is precise, distinguishing it from other inorganic or organic chemicals. Importers and exporters should note the varying duty rates: the UK applies a 4.00% ad valorem duty, while the EU imposes 5.50%. In the US, the general duty rate is 2.8%, though many countries benefit from duty-free treatment under various trade agreements (e.g., Australia, Korea, Singapore). A 25% duty rate applies to certain non-market economies. Due to its hazardous nature, trade in cyanogen chloride is subject to stringent international chemical weapons conventions and domestic regulations, requiring careful compliance beyond standard customs procedures.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
2853100000 4.00 % — —

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
2853100000 5.50 % — —

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
2853100000 2.8% 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 2853.10?

Imports of Cyanogen chloride (chlorcyan) 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 14 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 285310 cover?

This subheading covers cyanogen chloride, also known as chlorcyan, a highly toxic chemical compound with the chemical formula CNCl. As defined by the World Customs Organization's Harmonized System Nomenclature, and reflected in the USITC Harmonized Tariff Schedule of the United States (HTSUS) and the EU TARIC, this specific code is dedicated solely to this distinct chemical. It is a colorless gas at room temperature, often encountered in liquefied form, and is primarily used as a chemical warfare agent, in organic synthesis, and as a fumigant. Its classification here is precise, distinguishing it from other inorganic or organic cyanogen compounds.

What falls outside HS 285310?

The following products are excluded from HS 285310: other cyanogen compounds that are not specifically cyanogen chloride. For instance, hydrogen cyanide (HCN) is classified under HS 2811.19, while cyanides and complex cyanides of inorganic bases are generally found in HS 2837. Organic cyanides, such as nitriles, are classified in Chapter 29, specifically under headings like 2926. Even mixtures containing cyanogen chloride would typically be classified elsewhere if the cyanogen chloride is not the predominant or essential character-imparting component, often falling into headings for chemical mixtures or specific organic compounds depending on their composition and use.

What are common classification mistakes for HS 285310?

A common error is misclassifying other cyanogen compounds or mixtures containing cyanogen chloride under HS 285310. Importers might incorrectly assume that any chemical with "cyanogen" in its name belongs here, overlooking the specific "chloride" requirement. This often violates General Interpretative Rule (GRI) 1, which states that classification is determined according to the terms of the headings and any relative section or chapter notes. For example, classifying sodium cyanide (HS 2837.19) or acetonitrile (HS 2926.90) under 285310 would be a significant error, as these are distinct chemical entities with different compositions and uses.

How should importers classify products under HS 285310?

The correct procedure for classifying products under HS 285310 involves a precise chemical identification of the substance. Importers and customs brokers must verify that the product is indeed pure cyanogen chloride (CNCl) and not a mixture or another related compound. This requires reviewing chemical analysis reports, safety data sheets (SDS), and product specifications. If the product is a mixture, the classification must adhere to GRI 3, which addresses mixtures and composite goods, often leading to classification based on the component that gives the goods their essential character. Always consult the WCO Explanatory Notes, USITC HTSUS, or EU TARIC for definitive guidance and to ensure compliance with national regulations.

Which HS Codes Are Related?

HS 281112 HS 283711 HS 280110 HS 283720 HS 280610 HS 282810

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

FAQ

What is the Most Favored Nation (MFN) import duty rate for HS code 2853.10 (Cyanogen chloride (chlorcyan)) in the United States?

For imports into the United States, the Most Favored Nation (MFN) duty rate for Harmonized System (HS) code 2853.10.00.00, covering Cyanogen chloride (chlorcyan), is 4.0% ad valorem. This rate applies to goods from countries that do not have a specific free trade agreement or other preferential tariff treatment with the U.S. Importers should verify the current rate using the latest HTSUS (Harmonized Tariff Schedule of the United States) issued by the USITC.

Are there any preferential duty rates available for Cyanogen chloride (HS 2853.10) under U.S. Free Trade Agreements?

Yes, preferential duty rates, often 'Free' (0% ad valorem), are available for Cyanogen chloride (HS 2853.10) when imported into the U.S. from countries with which the U.S. has a Free Trade Agreement (FTA). Based on common FTA structures, countries such as Australia (AU), Bahrain (BH), Chile (CL), Colombia (CO), Israel (IL), Jordan (JO), Korea (KR), Morocco (MA), Oman (OM), Panama (PA), Peru (PE), and Singapore (SG) typically qualify for duty-free treatment, provided all rules of origin requirements are met. Importers must ensure they have the necessary documentation, such as a certificate of origin, to claim these preferential rates. Always consult the specific FTA text and the HTSUS for precise country eligibility and requirements.

What are the key classification criteria for ensuring Cyanogen chloride falls under HS code 2853.10?

The classification of Cyanogen chloride (chlorcyan) under HS code 2853.10 is primarily based on its chemical identity. This heading specifically covers 'Other inorganic compounds; amalgams; mixtures of inorganic products for metallurgical or industrial uses.' Subheading 2853.10 is dedicated to 'Cyanogen chloride (chlorcyan).' The key criterion is that the product must be chemically pure cyanogen chloride (ClCN). If it is a mixture, its classification would depend on the nature and proportion of other components, potentially leading to a different heading, though pure cyanogen chloride is unambiguously classified here. WCO Explanatory Notes for Chapter 28 provide further guidance on the scope of 'other inorganic compounds'.

What specific documentation is required for importing Cyanogen chloride (HS 2853.10) into the United States, beyond standard customs forms?

Beyond standard import documentation (e.g., commercial invoice, packing list, bill of lading/air waybill), importing Cyanogen chloride (HS 2853.10) may require additional permits and declarations due to its hazardous nature and potential dual-use applications. As a chemical, it is subject to regulations by agencies such as the Environmental Protection Agency (EPA) under the Toxic Substances Control Act (TSCA) and potentially the Department of Homeland Security (DHS) under the Chemical Facility Anti-Terrorism Standards (CFATS). Importers should be prepared to provide:

  1. TSCA Certification: Affirming compliance with TSCA import requirements.
  2. Safety Data Sheet (SDS): Essential for hazard communication and regulatory compliance.
  3. Permits/Licenses: Depending on the quantity and intended use, specific permits from regulatory bodies may be necessary.
  4. Chemical Weapons Convention (CWC) Declaration: Cyanogen chloride is a Schedule 3 chemical under the CWC. Importers may need to file declarations with the Bureau of Industry and Security (BIS) if import thresholds are met. Consultation with a customs broker experienced in chemical imports and verification with relevant U.S. government agencies prior to import is strongly recommended.