Organo-sulfur compounds — HTS 2930
Organo-sulfur compounds
Chapter 29 › Heading 2930
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 2930 is a broad four-digit category in Chapter 29 for “organo-sulfur compounds.” It generally groups organic chemical compounds that contain sulfur as part of their molecular structure, including different sulfur-containing chemical families. The heading is a starting point, not a complete classification for a shipment.
To reach the correct eight-digit HTSUS code, follow the subheadings under heading 2930. The detailed provisions commonly distinguish products by their chemical type, molecular structure, or specifically named compound. Classification usually depends on the product’s actual chemical identity—not its brand name, trade use, packaging, or marketing description. Mixtures, preparations, and products with additional ingredients may require separate analysis under the tariff rules and relevant notes.
What to check
- Obtain the product’s full chemical name, structural formula or CAS Registry Number, composition, and safety data sheet.
- Check the heading 2930 subheadings and compare the product with any specifically named compound or chemical family before using a residual “other” provision.
- Determine whether the shipment is a single chemically defined compound, a mixture, or a formulated preparation; do not assume all sulfur-containing products belong in heading 2930.
- Review the General Rules of Interpretation, Chapter 29 notes, and any applicable section or chapter notes when the product could fit more than one provision.
- Ask a customs broker or request a binding classification ruling when the chemical identity, purity, formulation, or competing tariff provisions create uncertainty.
HTS heading 2930 summary
Organo-sulfur compounds 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 |
|---|---|
| 2930.20 | Thiocarbamates and dithiocarbamates |
| 2930.30 | Thiuram mono-, di- or tetrasulfides |
| 2930.90 | 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 |
|---|---|---|---|---|
| 2930.10.01.00 👉 | 2-(N,N-Dimethylamino) ethanethiol | 3.7% | Free | 25% |
| 2930.40.00.00 👉 | Methionine | Free | — | 25% |
| 2930.60.00.00 👉 | 2-(N,N-Diethylamino)ethanethiol | 3.7% | Free | 25% |
| 2930.70.00.00 👉 | Bis(2-hydroxyethyl)sulfide (thiodiglycol (INN)) | 3.7% | Free | 25% |
| 2930.80.00.00 👉 | Aldicarb (ISO), captafol (ISO) and methamidophos (ISO) | 6.5% | Free | 30.5% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2930?
Organo-sulfur compounds. 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.