Epoxides — HTS 2910
Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives
Chapter 29 › Heading 2910
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 2910 is a broad product category for certain organic chemicals built around a three-membered epoxide ring. It includes epoxides and related compounds such as epoxyalcohols, epoxyphenols, and epoxyethers, along with specified halogenated, sulfonated, nitrated, or nitrosated derivatives. The heading covers chemical substances, not finished products merely because they contain an epoxy resin or adhesive.
To reach the correct 8-digit HTSUS code, first identify the compound’s chemical identity and principal structure, then compare the available subheadings and statistical suffixes. The more specific code may distinguish the material or chemical type, including whether it is a derivative or a particular named compound. Review the product’s formulation, concentration, and intended identity against the current HTSUS descriptions and relevant classification guidance; a customs broker or ruling request may be appropriate when the chemistry is unclear.
What to check
- Obtain the exact chemical name, molecular formula, CAS Registry Number, and safety data sheet from the supplier.
- Confirm that the product itself is a chemical covered by heading 2910, rather than a finished article, mixture, resin system, or preparation classified elsewhere.
- Determine whether the compound is an epoxide, epoxyalcohol, epoxyphenol, epoxyether, or a specified halogenated, sulfonated, nitrated, or nitrosated derivative.
- Read every subheading and statistical suffix under heading 2910, and match the product’s named material or chemical type—not merely its trade name.
- Keep technical documentation supporting the classification and ask a customs broker or seek an official classification ruling if the composition or heading choice is uncertain.
HTS heading 2910 summary
Epoxides is a 4-digit product category containing 5 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 2910.90 | Other |
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 2910.10.00.00 👉 | Oxirane (Ethylene oxide) | 5.5% | Free | 49% |
| 2910.20.00.00 👉 | Methyloxirane (Propylene oxide) | 5.5% | Free | 55% |
| 2910.30.00.00 👉 | 1-Chloro-2,3-epoxypropane (Epichlorohydrin) | 3.7% | Free | 25% |
| 2910.40.00.00 👉 | Dieldrin (ISO, INN) | 4.8% | Free | 31% |
| 2910.50.00.00 👉 | Endrin | 4.8% | Free | 31% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2910?
Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.