Inorganic or organic compounds of mercury — HTS 2852
Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams
Chapter 28 › Heading 2852
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 2852 is a product category for mercury compounds, including inorganic compounds and organic compounds, whether or not they are chemically defined. It generally excludes amalgams, which are mixtures or alloys involving mercury and other metals and may be classified elsewhere. The heading describes the broad chemical family; it does not by itself identify the exact product or duty treatment.
To reach the correct 8-digit HTSUS code, start with the product’s actual chemical identity and composition. The subheading structure may distinguish among particular mercury compounds or types of compounds, so classification usually depends on the material, formulation, and whether the product is a single chemically defined compound or a mixture or preparation. Review the relevant subheading text, section and chapter notes, and any applicable legal notes. If the composition or intended use creates uncertainty, obtain a binding ruling or consult a qualified customs broker or trade specialist.
What to check
- Confirm whether the product is a mercury compound rather than a mercury-containing amalgam, mixture, or preparation that may fall outside heading 2852.
- Obtain the exact chemical name, formula, concentration, and safety data sheet from the manufacturer; do not classify from a marketing name alone.
- Read every candidate 8-digit subheading and its legal notes, checking whether it specifically describes the compound or material type.
- Check whether the product is chemically defined, a mixture, or a formulated preparation, and verify whether that distinction changes the classification.
- Document the classification reasoning and seek broker advice or a binding ruling when the composition, exclusions, or subheading wording is unclear.
HTS heading 2852 summary
Inorganic or organic compounds of mercury is a 4-digit product category containing 0 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 |
|---|---|
| 2852.10 | Chemically defined |
| 2852.90 | Other |
Common questions
What products fall under HTS heading 2852?
Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. 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.