Manganese oxides — HTS 2820
Manganese oxides
Chapter 28 › Heading 2820
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 2820 is a four-digit product category for “manganese oxides.” It groups chemical products whose essential identity is a manganese oxide, rather than finished goods that merely contain manganese or manganese compounds. The heading may include different oxide types or chemical forms, depending on the detailed tariff structure.
To reach the correct eight-digit HTSUS code, start with the applicable six-digit subheading and then review the additional U.S. subdivisions. These narrower codes commonly distinguish the material or type of manganese oxide, such as its chemical identity, composition, or other tariff-described characteristics. The product’s exact specification and the wording of the tariff are controlling; a customs broker or classification specialist may be needed for close cases.
What to check
- Confirm the product’s chemical identity and verify that it is actually a manganese oxide, not a different manganese compound or a mixture classified elsewhere.
- Obtain the safety data sheet, certificate of analysis, technical data sheet, and formulation details; check the manganese oxide type, purity, and any included substances.
- Read the current HTSUS heading, subheadings, legal notes, and statistical suffix descriptions rather than stopping at the four-digit heading.
- Compare the product’s physical form and commercial description with the wording of the candidate eight-digit provisions, while avoiding classification based only on a marketing name.
- Ask a qualified customs broker or seek a formal ruling when the composition is proprietary, the product is a mixture, or more than one provision appears plausible.
HTS heading 2820 summary
Manganese oxides is a 4-digit product category containing 2 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.
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 |
|---|---|---|---|---|
| 2820.10.00.00 👉 | Manganese dioxide | 4.7% | Free | 25% |
| 2820.90.00.00 👉 | Other | 4.7% | 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 2820?
Manganese oxides. 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.