Unsaturated acyclic monocarboxylic acids — HTS 2916
Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives
Chapter 29 › Heading 2916
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 2916 is a broad product category for certain unsaturated or cyclic carboxylic acids and closely related chemical forms. It can include the acids themselves, as well as their anhydrides, halides, peroxides, peroxyacids, and derivatives that have been halogenated, sulfonated, nitrated, or nitrosated. In simple terms, the heading groups chemicals based on their molecular structure and chemical relationship to these acid families, not merely on their commercial name or end use.
To reach a specific 8-digit HTSUS code, first identify the chemical at the more detailed subheading level, then follow the applicable breakdown for the particular substance or type. The decisive detail may be the named chemical, whether it is an acid or a derivative, its form or composition, or another distinction in the tariff text. Review the product’s chemical identity and specifications rather than selecting a code from a trade name alone. Classification may require a customs broker or chemical-classification specialist, especially for mixtures, formulated products, or unusual derivatives.
What to check
- Confirm the product’s chemical identity, including its systematic name, CAS Registry Number, formula, and concentration.
- Determine whether the item is the acid itself, an anhydride, halide, peroxide, peroxyacid, or a halogenated, sulfonated, nitrated, or nitrosated derivative.
- Read every subheading under heading 2916 and compare the product’s composition and stated form with the wording of each possible provision.
- Check whether the product is a pure chemical, mixture, solution, preparation, or formulated product; related headings may apply depending on that distinction.
- Have a customs broker or qualified classification professional review the result when the product contains multiple ingredients or its chemical structure is unclear.
HTS heading 2916 summary
Unsaturated acyclic monocarboxylic acids is a 4-digit product category containing 3 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 |
|---|---|
| 2916.12 | Esters of acrylic acid |
| 2916.14 | Esters of methacrylic acid |
| 2916.15 | Oleic, linoleic or linolenic acids, their salts and esters |
| 2916.19 | Other |
| 2916.20 | Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives |
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 |
|---|---|---|---|---|
| 2916.11.00.00 👉 | Acrylic acid and its salts | 4.2% | Free | 25% |
| 2916.13.00.00 👉 | Methacrylic acid and its salts | 4.2% | Free | 25% |
| 2916.16.00.00 👉 | Binapacryl (ISO) | 3.7% | Free | 25% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2916?
Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; 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.