HS 293149 Other
Quick Answer: HS code 2931.49, "Other," encompasses a diverse range of organo-inorganic compounds not specifically classified elsewhere within subheading 2931.4. These are complex chemical compounds containing at least one carbon atom and a direct bond between carbon and a non-metal element other than hydrogen, oxygen, or nitrogen, often featuring silicon, phosphorus, or sulfur. Duty rates vary significantly: the UK applies a general rate of 6.00% ad valorem. The EU TARIC system shows rates typically at 6.50% ad valorem, though some specific entries may be 0.00%. In the US, the general Most Favored Nation (MFN) rate is 3.7% ad valorem, but numerous Free Trade Agreement (FTA) partners (e.g., Australia, Korea, Mexico) benefit from a 0.00% duty rate. Importers should verify the specific 10-digit subheading and country of origin to determine the precise applicable duty and leverage any preferential trade agreements.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2931490000 | — | — | — |
| 2931492000 | 6.00 % | — | — |
| 2931494000 | 6.00 % | — | — |
| 2931496000 | 6.00 % | — | — |
| 2931498008 | 6.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2931490000 | — | — | — |
| 2931492000 | 6.50 % | — | — |
| 2931493000 | 0.00 % | — | — |
| 2931491000 | 6.50 % | — | — |
| 2931494000 | 6.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 29314900 | 3.7% | Free (18 programs) | — |
| 2931490008 | — | — | ["kg"] |
| 2931490015 | — | — | ["kg"] |
| 2931490025 | — | — | ["kg"] |
| 2931490080 | — | — | ["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 2931.49?
Imports of Other 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 15 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?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 293149 cover?
This subheading covers "Other" organo-inorganic compounds, specifically those not elsewhere specified or included under other subheadings within Heading 2931. Heading 2931 itself encompasses "Other organo-inorganic compounds," which are chemical compounds containing at least one carbon atom and at least one atom of a metal or non-metal other than hydrogen, oxygen, nitrogen, or sulfur, directly bonded to the carbon. This particular subheading, 2931.49, serves as a residual category for the remaining organo-phosphorus compounds that do not fit into more specific subheadings like 2931.41 (Methylphosphonic acid, its O-alkyl esters, their halides, and phosphonic acid, [5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl]methyl methyl ester) or 2931.42 (Dimethyl methylphosphonate). The WCO Harmonized System Explanatory Notes for Heading 2931 clarify that these are compounds where a carbon atom is directly linked to an atom of phosphorus, arsenic, silicon, boron, or other specified elements, and 2931.49 captures the "other" phosphorus variants. The USITC Harmonized Tariff Schedule (HTS) and EU TARIC system align with this residual classification for organo-phosphorus compounds not specifically enumerated.
What falls outside HS 293149?
The following products are excluded from HS 293149: organo-inorganic compounds of elements other than phosphorus, which would be classified under different subheadings within Heading 2931, such as organo-silicon compounds (e.g., 2931.90.10 for Tetramethylsilane) or organo-tin compounds (e.g., 2931.90.20 for Tributyltin compounds). Furthermore, specific organo-phosphorus compounds explicitly listed in other subheadings, such as methylphosphonic acid and its derivatives (2931.41), or dimethyl methylphosphonate (2931.42), are also excluded from this residual "Other" category. Compounds that are not organo-inorganic, meaning they lack a direct carbon-to-metal/non-metal bond as defined by Heading 2931, would be classified elsewhere in Chapter 29 or other chapters entirely. For instance, inorganic phosphorus compounds, like phosphorus pentoxide, fall under Chapter 28, not Chapter 29.
What are common classification mistakes for HS 293149?
A common error is misclassifying specific organo-phosphorus compounds that have their own dedicated subheadings within 2931.4, such as 2931.41 or 2931.42, into the residual 2931.49. Importers sometimes default to "Other" without thoroughly checking for more specific provisions, violating General Rule of Interpretation (GRI) 6, which mandates classification at the most specific subheading level. Another frequent mistake involves classifying organo-inorganic compounds of elements other than phosphorus, such as organo-silicon or organo-tin compounds, into 2931.49, when they correctly belong in 2931.90. This error stems from an insufficient understanding of the elemental scope of the 2931.4 series, which is specifically for organo-phosphorus compounds. Incorrectly identifying the primary functional group or the directly bonded non-carbon element can lead to significant classification discrepancies and potential penalties.
How should importers classify products under HS 293149?
The correct procedure for classifying products under HS 293149 involves a systematic approach, beginning with a precise chemical identification of the compound. Importers and customs brokers must first confirm that the compound is an organo-inorganic compound as defined by Heading 2931, specifically containing a direct carbon-phosphorus bond. Next, they must meticulously review all other subheadings within 2931.4 (e.g., 2931.41, 2931.42) to ensure the product is not more specifically described elsewhere, adhering strictly to GRI 6. If the organo-phosphorus compound does not fit any more specific subheading, then and only then should 2931.49 be considered. It is crucial to consult the WCO Harmonized System Explanatory Notes for Heading 2931, along with the official USITC HTS and EU TARIC guidance, to confirm the scope and exclusions. Maintaining detailed chemical documentation, including CAS numbers and structural formulas, is essential for supporting the classification decision during customs review.
Which HS Codes Are Related?
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FAQ
What is the import duty rate for products classified under HS 2931.49 in key markets?
The Most Favored Nation (MFN) duty rates for HS 2931.49 ('Other' organo-inorganic compounds) vary by importing country. For example, the United States applies a general MFN duty rate of 6.5% ad valorem. The European Union's TARIC database shows an MFN duty rate of 6.0% ad valorem. The UK Global Tariff also lists a 6.0% ad valorem MFN rate. Canada's MFN rate is 6.5% ad valorem. China applies an MFN rate of 6.0% ad valorem. Importers should always verify the current applicable rate with the specific customs authority of the importing country or through official tariff databases like the USITC Tariff Database, EU TARIC, or the UK Trade Tariff.
Are there any preferential duty rates available for HS 2931.49 under common Free Trade Agreements (FTAs)?
Yes, preferential duty rates, including 'Free' (0.00% ad valorem), are available for HS 2931.49 under various Free Trade Agreements (FTAs) for eligible goods. For instance, in the United States, goods originating from countries like 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) may qualify for duty-free entry under their respective FTAs. Similar preferential rates exist in other jurisdictions. To claim preferential treatment, importers must ensure the goods meet the rules of origin criteria of the specific FTA and provide valid origin documentation, such as a certificate of origin. Consult the specific FTA text and the importing country's customs regulations for detailed requirements.
What are the key classification criteria for products under HS 2931.49, 'Other' organo-inorganic compounds?
HS 2931.49 is a residual subheading under heading 29.31, which covers 'Other organo-inorganic compounds.' Classification in this subheading means the compound is an organo-inorganic compound that does not fall under the more specific subheadings 2931.10 (e.g., tetramethyltin), 2931.20 (e.g., trimethyl phosphite), or 2931.30 (e.g., tetraethyllead). A key criterion is that the compound must contain at least one carbon atom and at least one bond between carbon and a metal or metalloid atom other than carbon-hydrogen, carbon-oxygen, carbon-nitrogen, or carbon-sulfur bonds typical of organic compounds. Importers should have a detailed chemical description, CAS number, and structural formula to ensure accurate classification, referring to the Explanatory Notes to the Harmonized System for further guidance on Chapter 29.
What specific documentation is typically required for importing goods classified under HS 2931.49?
In addition to standard import documentation such as a commercial invoice, packing list, and bill of lading/air waybill, importers of HS 2931.49 compounds may require specific chemical-related documentation. This often includes a Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) to comply with chemical safety regulations, a Certificate of Analysis (CoA) to confirm chemical composition and purity, and potentially a pre-manufacture notification or import certification depending on the specific chemical and the importing country's chemical control laws (e.g., TSCA in the US, REACH in the EU). If claiming preferential duty rates, a valid Certificate of Origin or origin declaration is mandatory. Customs brokers should advise importers to prepare these documents in advance to avoid clearance delays.
Could products in HS 2931.49 be subject to anti-dumping or countervailing duties, or other trade remedies?
While there are no universally applicable anti-dumping (AD) or countervailing duties (CVD) specifically targeting all products under the broad HS 2931.49, individual chemical compounds within this 'Other' category can become subject to such measures. AD/CVD investigations are typically initiated against specific products from particular countries found to be dumped or subsidized, causing injury to domestic industries. Importers should regularly check the trade remedies databases of the importing country (e.g., US Department of Commerce, EU Commission) for any active AD/CVD orders or ongoing investigations that might affect their specific chemical compound. Additionally, these products could be subject to Section 232 (national security) or Section 301 (unfair trade practices) tariffs, as seen with certain goods from China, which could result in significantly higher duty rates, such as the 25% additional duties observed on some Chinese imports into the US.