HS 291819 Other
Quick Answer: HS code 2918.19, "Other," covers a diverse range of carboxylic acids with alcohol function but without other oxygen function, and their anhydrides, halides, peroxides, peroxyacids, and their derivatives, not specifically classified elsewhere within subheading 2918.1. This includes various complex organic chemicals used in pharmaceuticals, agrochemicals, and specialty chemical manufacturing. Typical Most Favored Nation (MFN) duty rates vary by jurisdiction: the UK generally applies a 6.00% ad valorem rate, the EU applies rates around 6.30% to 6.50% ad valorem, while the US MFN rate is 5.8% ad valorem for many entries, with some specific products subject to 15.4¢/kg + 40%. Significant preferential duty treatment, including "Free" rates, is available in the US under various Free Trade Agreements (FTAs) and special programs (e.g., A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG). Importers and customs brokers must precisely classify specific chemical compounds within this "Other" category to ensure accurate duty assessment and leverage available trade preferences.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2918190000 | — | — | — |
| 2918193010 | 6.00 % | — | — |
| 2918193090 | 6.00 % | — | — |
| 2918199800 | — | — | — |
| 2918199825 | 6.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2918193010 | 6.30 % | — | — |
| 2918193090 | 6.30 % | — | — |
| 2918199800 | — | — | — |
| 2918199825 | 6.50 % | — | — |
| 2918199850 | 6.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2918191100 | 5.8% | Free (17 programs) | ["kg"] |
| 2918191500 | 6.5% | Free (18 programs) | ["kg"] |
| 2918193100 | 6.5% | Free (19 programs) | ["kg"] |
| 2918199000 | 4% | Free (18 programs) | ["kg"] |
| 291819 | — | — | — |
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 2918.19?
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 17 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 291819 cover?
This subheading covers "Other" carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids, and their derivatives, specifically those not elsewhere specified within HS 291811 (lactic acid, its salts and esters) or 291812 (tartaric acid, its salts and esters). According to the Harmonized System Explanatory Notes (HSEN) for Heading 2918, this residual subheading captures a broad range of organic chemicals characterized by both a carboxylic acid group and at least one additional oxygen function (e.g., hydroxyl, ether, aldehyde, ketone). Examples include citric acid, gluconic acid, and their derivatives, provided they meet the structural criteria of Heading 2918 and are not specifically enumerated in other subheadings.
What falls outside HS 291819?
The following products are excluded from HS 291819: lactic acid, its salts and esters, which are specifically classified under HS 291811. Similarly, tartaric acid, its salts and esters are explicitly covered by HS 291812. Furthermore, carboxylic acids without an additional oxygen function (e.g., acetic acid, formic acid) are classified under HS 2915. Products that are derivatives of carboxylic acids but where the additional oxygen function is not present (e.g., simple esters of non-oxygenated carboxylic acids) would also be excluded and classified elsewhere, typically under HS 2915 or 2916, depending on their specific chemical structure and functional groups present.
What are common classification mistakes for HS 291819?
A common error is misclassifying specific oxygen-function carboxylic acids that have their own dedicated subheadings, such as lactic acid (HS 291811) or tartaric acid (HS 291812), into the residual "Other" category of HS 291819. This mistake often arises from insufficient attention to the specific enumeration within the HS nomenclature. Another frequent error involves classifying carboxylic acids that lack an additional oxygen function under Heading 2918 at all, instead of their correct headings like HS 2915 or 2916. Importers must carefully apply General Interpretative Rule (GRI) 1, which dictates that classification shall be determined according to the terms of the headings and any relative section or chapter notes, ensuring the most specific heading is always chosen first.
How should importers classify products under HS 291819?
The correct procedure for classifying products under HS 291819 involves a systematic review of the chemical structure and functional groups. Importers and customs brokers must first confirm the presence of both a carboxylic acid group and at least one additional oxygen function. Next, they must meticulously check if the specific chemical compound is explicitly named in any other subheading of Chapter 29, particularly within HS 291811 (lactic acid) or HS 291812 (tartaric acid). If the product meets the general criteria for Heading 2918 but is not specifically enumerated elsewhere, then HS 291819 is the appropriate classification. Consulting the WCO HS Explanatory Notes and official tariff databases like the USITC HTSUS or EU TARIC is crucial for accurate determination and compliance.
Which HS Codes Are Related?
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FAQ
What is the general import duty rate for products classified under HS 2918.19 ('Other' carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives)?
The Most Favored Nation (MFN) duty rates for HS 2918.19 typically range. For example, the United States Harmonized Tariff Schedule (HTSUS) may list a general rate of 6.5% ad valorem. The EU TARIC database might show a Common Customs Tariff (CCT) rate of 6.0% ad valorem, and the UK Global Tariff (UKGT) also commonly applies a 6.0% ad valorem rate. Importers should always verify the specific duty rate applicable to their country of import using the official tariff schedule (e.g., USITC HTSUS, EU TARIC, UK Trade Tariff).
Are there any preferential duty rates available for HS 2918.19, and which trade agreements commonly offer them?
Yes, preferential duty rates, including 'Free' status, are often available for products classified under HS 2918.19, depending on the country of origin and the applicable trade agreement. For instance, goods originating from countries with which the importing nation has a Free Trade Agreement (FTA) or other preferential trade programs may qualify for reduced or zero duties. Examples of such agreements include:
- United States: CAFTA-DR (D), KORUS (KR), USMCA (MX, CA), ATPA/AGOA (A+), Chile FTA (CL), Australia FTA (AU), Bahrain FTA (BH), Colombia TPA (CO), Israel FTA (IL), Jordan FTA (JO), Morocco FTA (MA), Oman FTA (OM), Panama TPA (P, PA), Peru TPA (PE), Singapore FTA (SG).
- European Union: Various FTAs with countries like South Korea, Japan, Canada, and GSP schemes.
- United Kingdom: FTAs with countries like Japan, Australia, New Zealand, and various developing countries under GSP.
To claim preferential duty rates, importers must ensure the goods meet the Rules of Origin requirements of the specific agreement and possess valid proof of origin (e.g., a certificate of origin or origin declaration).
What are the key classification criteria for determining if a product falls under HS 2918.19, particularly distinguishing it from other subheadings?
HS 2918.19 is the 'Other' subheading within 2918.1, which covers 'Carboxylic acids with an additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives.' The primary classification criteria are that the product must be:
- An organic chemical compound.
- A carboxylic acid (or its specified derivatives: anhydrides, halides, peroxides, peroxyacids).
- Possess an 'additional oxygen function' (e.g., hydroxyl, ether, ketone, aldehyde, or ester group) in addition to the carboxyl group(s).
- Not specifically provided for in other more specific subheadings of 2918.1 (e.g., 2918.11 for Lactic acid, its salts and esters; 2918.12 for Tartaric acid, its salts and esters; 2918.13 for Citric acid, its salts and esters; 2918.14 for Gluconic acid, its salts and esters; 2918.15 for Salicylic acid and its salts; 2918.16 for O-Acetylsalicylic acid, its salts and esters; 2918.18 for Chlorobenzilate (ISO)).
If the chemical structure fits the general description but is not explicitly named in the more specific 8-digit or 10-digit subheadings under 2918.1, it defaults to 2918.19. Importers should consult the WCO Explanatory Notes for Chapter 29 for detailed guidance on chemical classification.
What specific documentation is required for importing chemicals classified under HS 2918.19?
Beyond standard import documentation (commercial invoice, packing list, bill of lading/air waybill), importing chemicals under HS 2918.19 often requires additional specific documents to ensure compliance and safety. These may include:
- Safety Data Sheet (SDS): Essential for all chemical imports, providing information on hazards, safe handling, and emergency procedures.
- Certificate of Analysis (CoA): Verifies the chemical composition, purity, and quality of the product, crucial for regulatory compliance and quality control.
- Proof of Origin: If claiming preferential duty rates under a Free Trade Agreement, a Certificate of Origin or an origin declaration on the invoice is mandatory.
- Customs Declaration: Accurately detailing the HS code, value, quantity, and country of origin.
- Permits/Licenses: Depending on the specific chemical and its intended use, import permits or licenses from relevant regulatory bodies (e.g., EPA in the US, ECHA in the EU) may be required, especially if the chemical is controlled or subject to specific environmental or health regulations. Importers should verify national import requirements for the specific chemical substance.