HS 293790 Other
Quick Answer: HS code 293790, "Other," encompasses a diverse range of hormones, prostaglandins, thromboxanes, and leukotrienes, their derivatives and structural analogues, including modified polypeptide hormones, not elsewhere specified in Heading 2937. This residual category covers various synthetic and natural compounds crucial in pharmaceuticals and biochemical research. For the UK and EU, the standard Most Favoured Nation (MFN) duty rate is 0.00% ad valorem, indicating duty-free entry for these products. In the US, duty rates vary significantly across subheadings, ranging from Free to a complex 15.4¢/kg + 49% ad valorem. Importers and customs brokers must verify the specific 10-digit US HTS subheading for precise duty assessment due to this wide variation. Careful classification is essential to ensure compliance and accurate duty calculation, especially given the high ad valorem component for certain US subheadings.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2937900000 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2937900000 | 0.00 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2937900500 | Free | — | ["g"] |
| 2937901000 | Free | — | ["g"] |
| 2937904000 | Free | — | ["kg"] |
| 293790 | — | — | — |
| 2937904500 | Free | — | ["g"] |
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.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 293790 cover?
This subheading covers other hormones, their derivatives, and structural analogues, which are not specifically provided for in subheadings 293711 through 293729. This includes a broad range of chemically defined hormones and their synthetic equivalents used primarily in pharmaceutical applications, diagnostics, or research, provided they are not polypeptide or protein hormones, corticosteroid hormones, or estrogenic/progestinic hormones of subheading 293711, 293712, 293719, 293721, 293722, or 293723. The WCO Harmonized System Explanatory Notes for Heading 2937 clarify that this residual subheading captures all other compounds meeting the definition of hormones, derivatives, or structural analogues. Examples include certain thyroid hormones, parathyroid hormones, and other less common or newly developed hormonal substances, as defined by the USITC Harmonized Tariff Schedule and EU TARIC.
What falls outside HS 293790?
The following products are excluded from HS 293790: polypeptide or protein hormones (e.g., insulin, glucagon) which are classified under 293711.00.00; corticosteroid hormones, their derivatives and structural analogues (e.g., cortisone, hydrocortisone) which fall under 293721.00.00, 293722.00.00, or 293723.00.00; and estrogenic or progestinic hormones (e.g., estradiol, progesterone) which are classified under 293712.00.00 or 293719.00.00. Additionally, preparations of hormones, even if containing substances of 293790, are generally excluded from Chapter 29 and are classified in Chapter 30 if they are medicaments or other pharmaceutical preparations. For instance, a finished pharmaceutical dosage form containing a hormone from 293790 would typically be classified under Chapter 30, not in Heading 2937.
What are common classification mistakes for HS 293790?
A common error is misclassifying a specific hormone under 293790 when it has a more specific provision within Heading 2937, such as a corticosteroid or a polypeptide hormone. Importers sometimes default to "other" without thoroughly reviewing the preceding subheadings. Another frequent mistake involves classifying finished pharmaceutical preparations containing hormones in 293790 instead of Chapter 30. This violates General Interpretative Rule (GRI) 3(a), which prioritizes the heading providing the most specific description. For example, a tablet containing a thyroid hormone from 293790 is a medicament and belongs in Chapter 30, not 293790, which is reserved for chemically defined unmixed products. Careful attention to the product's form and intended use is crucial to avoid these errors.
How should importers classify products under HS 293790?
The correct procedure for classifying products under HS 293790 involves a systematic review of Heading 2937 and its subheadings. Importers and customs brokers should first ascertain if the product is a chemically defined hormone, derivative, or structural analogue. Next, they must meticulously check subheadings 293711 through 293729 to ensure the product is not specifically enumerated there (e.g., as a polypeptide, corticosteroid, or estrogenic hormone). Only if the product meets the general description of a hormone and is not covered by a more specific subheading within 2937 should 293790 be considered. Furthermore, it is critical to confirm that the product is not a medicament or a preparation, which would lead to classification in Chapter 30. Consulting the WCO Explanatory Notes and national tariff schedules (e.g., USITC HTS, EU TARIC) for detailed guidance is essential for accurate classification.
Which HS Codes Are Related?
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FAQ
What is the import duty rate for products classified under HS 2937.90 'Other' in the United States?
For products classified under HTSUS subheading 2937.90.0000 'Other' (referencing the Harmonized Tariff Schedule of the United States, USITC), the Most Favored Nation (MFN) duty rate is Free. This applies to goods from countries with which the U.S. has normal trade relations. Importers should always verify the current rates via the USITC HTS search tool for the most up-to-date information.
How does classification under HS 2937.90 'Other' differ from more specific subheadings within Chapter 29, and what are the key criteria?
HS 2937.90 'Other' is a residual subheading for goods that are 'Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones' but do not fit into the more specific six-digit subheadings (e.g., 2937.11 for Somatotropin, its derivatives and structural analogues). Classification into 2937.90 requires that the substance meets the general description of Chapter 29, specifically Note 1 to Chapter 29, and the heading text of 2937, but lacks a more precise classification within 2937. The primary criteria involve the chemical structure, function (primarily as hormones), and whether it's a natural or synthetic compound, derivative, or structural analogue not explicitly named elsewhere in the heading.
Are there any specific documentation requirements or regulatory considerations for importing goods under HS 2937.90 'Other'?
Yes, due to the nature of these products (hormones and related compounds), importers should anticipate potential scrutiny from various U.S. regulatory agencies, depending on the specific use and composition. The U.S. Food and Drug Administration (FDA) is often involved, especially if the products are for pharmaceutical, veterinary, or food additive use. Required documentation may include a Certificate of Analysis (CoA), Safety Data Sheets (SDS), and potentially FDA prior notice or import declarations (e.g., FDA Form 2877 for drug products). Importers should consult FDA regulations (e.g., 21 CFR) and engage a customs broker experienced with FDA-regulated goods.
Which trade agreements might offer preferential duty treatment for products classified under HS 2937.90 'Other' when imported into the United States?
Given that the MFN duty rate for HTSUS 2937.90.0000 is already Free, most preferential trade agreements (such as USMCA, CAFTA-DR, KORUS, etc.) would also grant duty-free treatment, provided the goods meet the respective agreement's rules of origin. While the duty rate may not change, qualifying for preferential origin under an agreement can still be important for other trade compliance reasons or for future duty rate changes. Importers should ensure they have the necessary Certificates of Origin or declarations to substantiate any claims for preferential treatment, even if the MFN rate is zero.