HS 283329 Other
Quick Answer: HS 2833.29, "Other," is a residual classification under Heading 28.33 for sulphates, alums, and peroxosulphates. This code covers various inorganic sulphates not specifically enumerated in other subheadings, such as certain magnesium, nickel, or cobalt sulphates. Importers and customs brokers should note the diverse duty rates: the UK applies a 4.00% ad valorem rate across many lines, while the EU's Common Customs Tariff typically ranges from 4.60% to 5.00% ad valorem. In the US, rates vary significantly, from 1.4% to 6.5% ad valorem, with many products eligible for duty-free treatment under various Free Trade Agreements (e.g., A, AU, CL, KR, MX, SG). Precise classification at the 8-digit or 10-digit level is crucial to determine the exact duty and eligibility for preferential tariffs.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2833292000 | 4.00 % | — | — |
| 2833296000 | 4.00 % | — | — |
| 2833298020 | 4.00 % | — | — |
| 2833298080 | 4.00 % | — | — |
| 2833290000 | — | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2833290000 | — | — | — |
| 2833296000 | 4.60 % | — | — |
| 2833298000 | 5.00 % | — | — |
| 2833298040 | 5.00 % | — | — |
| 2833292000 | 5.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2833291000 | 1.4% | Free (17 programs) | ["kg"] |
| 2833292000 | Free | — | ["kg"] |
| 2833293000 | 5.5% | Free (17 programs) | ["kg","V kg"] |
| 2833294500 | 1.6% | Free (17 programs) | ["kg"] |
| 283329 | — | — | — |
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 2833.29?
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 to Classify This HS Code?
What products does HS 283329 cover?
This subheading covers sulfates of metals, excluding those specifically enumerated in subheadings 2833.21 through 2833.27, which address disodium sulfate, magnesium sulfate, aluminum sulfate, nickel sulfates, copper sulfates, and barium sulfate, respectively. HS 2833.29 acts as a residual category for all other sulfates, encompassing a wide array of inorganic chemical compounds. Examples include zinc sulfate, iron(II) sulfate (ferrous sulfate), iron(III) sulfate (ferric sulfate), potassium sulfate, and calcium sulfate, provided they are not hydrated forms specifically covered elsewhere. The WCO Harmonized System Explanatory Notes for Heading 2833 confirm this scope, and official tariff schedules like the USITC Harmonized Tariff Schedule (HTSUS) and the EU TARIC system align with this interpretation, classifying these "other" sulfates here.
What falls outside HS 283329?
The following products are excluded from HS 2833.29: disodium sulfate (2833.21), magnesium sulfate (2833.22), aluminum sulfate (2833.23), nickel sulfates (2833.24), copper sulfates (2833.25), and barium sulfate (2833.27), all of which have their own specific subheadings under Heading 2833. Furthermore, certain double sulfates or complex sulfates, such as alums (e.g., potassium aluminum sulfate), are classified under Heading 2833.30. Mineral or chemical fertilizers containing sulfates, when put up in forms or packings for retail sale or as specified in Chapter 31, are also excluded and classified in Chapter 31. Similarly, medicaments containing sulfates, if meeting the criteria for Chapter 30, would be excluded from this chemical chapter.
What are common classification mistakes for HS 283329?
A common error is misclassifying specific sulfates that have their own dedicated subheadings, such as zinc sulfate, which is correctly classified under 2833.29, but might be mistakenly placed under a more general "other inorganic chemicals" heading if the specific residual category is overlooked. Another frequent mistake involves confusing simple sulfates with double sulfates or alums, which are specifically provided for under HS 2833.30, not 2833.29. Importers sometimes fail to correctly identify the specific metal cation, leading to incorrect placement within the 2833 series. Adherence to General Interpretative Rule (GRI) 1, which states that classification shall be determined according to the terms of the headings and any relative section or chapter notes, is crucial to avoid these errors.
How should importers classify products under HS 283329?
The correct procedure for classifying products under HS 2833.29 involves first identifying the chemical name and composition of the sulfate. Importers and customs brokers must confirm that the product is indeed a sulfate and not a sulfite, thiosulfate, or other sulfur compound. Next, verify that the sulfate is not one of the specifically enumerated sulfates in subheadings 2833.21 through 2833.27. If it is a sulfate of a metal not listed in those specific subheadings, and it is not a double sulfate or alum (2833.30), then HS 2833.29 is the appropriate classification. Always consult the WCO Explanatory Notes for Heading 2833 and cross-reference with the specific national tariff schedule (e.g., HTSUS, EU TARIC) to ensure accuracy and compliance with national customs regulations.
Which HS Codes Are Related?
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FAQ
What is the Most Favored Nation (MFN) import duty rate for products classified under HS 2833.29, and how does it compare across major economies?
The MFN (Most Favored Nation) import duty rates for HS 2833.29 ('Other' sulfates) vary by importing country. For example, the United States applies an MFN duty rate of 4.00% ad valorem. The European Union's TARIC database indicates a general MFN duty rate of 6.5% ad valorem. The UK Global Tariff also lists a 6.5% ad valorem MFN rate. Canada applies an MFN rate of 4.00% ad valorem, while Australia applies a 5.00% ad valorem MFN rate. Importers should always consult the specific tariff schedule of the importing country (e.g., USITC Harmonized Tariff Schedule, EU TARIC, UK Trade Tariff) for the most current and accurate rates applicable to their specific origin and destination.
Which preferential trade agreements offer duty-free access or reduced rates for goods under HS 2833.29, and what documentation is required to claim these benefits?
Many preferential trade agreements provide duty-free or reduced-rate access for products classified under HS 2833.29. For imports into the United States, duty-free treatment is available under agreements such as the USMCA (Mexico, Canada), CAFTA-DR (Central America, Dominican Republic), KORUS (Korea), Chile FTA, Australia FTA, and others. Similarly, the EU and UK have extensive networks of free trade agreements. To claim preferential duty rates, importers must typically provide a valid Certificate of Origin (e.g., Form A for GSP, specific certificates for FTAs like USMCA, EUR.1 for EU agreements) or an origin declaration, demonstrating that the goods meet the rules of origin criteria of the respective agreement. Customs brokers and importers must ensure all origin requirements are met and documentation is accurately completed and presented at the time of import.
What are the key classification criteria for determining if a sulfate compound falls under HS 2833.29 ('Other') versus more specific subheadings?
HS 2833.29 is a residual 'Other' subheading within heading 2833, which covers 'Sulfates; alums; peroxosulfates (persulfates).' The primary classification criterion is the chemical identity of the sulfate. Goods fall under 2833.29 if they are sulfates that are not specifically provided for in subheadings 2833.11 through 2833.27. For example, sodium sulfates are classified under 2833.11 or 2833.19, and magnesium sulfate (Epsom salts) is under 2833.21. If a sulfate compound is not explicitly named in these more specific subheadings (e.g., certain less common metallic sulfates or complex sulfates), it would default to 2833.29. Importers should refer to the WCO Explanatory Notes for Chapter 28 and seek a binding ruling if there is any ambiguity regarding the specific chemical composition and its primary use.
Are there any specific import restrictions, licensing requirements, or special documentation beyond standard customs forms for chemical products classified under HS 2833.29?
For chemical products under HS 2833.29, while general import restrictions are less common than for highly controlled substances, importers must be aware of potential regulations depending on the specific chemical. Certain sulfates might be subject to environmental regulations (e.g., EPA in the US, REACH in the EU) concerning their production, handling, and use, which could indirectly affect import documentation or require specific declarations. For instance, if the sulfate is part of a mixture or preparation, its components might trigger specific reporting requirements. Furthermore, if the sulfate is intended for a specific regulated industry (e.g., pharmaceuticals, food additives), additional certifications or licenses from relevant regulatory bodies (e.g., FDA in the US, EFSA in the EU) may be required. It is crucial for importers to verify the specific chemical identity and its intended use against the regulations of the importing country.