VOL. I · WASHINGTON TARIFF DECISION ASSISTANT · April 25, 2026
§ HTS 2821.10.00 · US import duty

Iron oxides and hydroxides

HTS 2821.10.00 covers Iron oxides and hydroxides, classified under HS chapter 28. The MFN (general column) base duty is 3.7%. 1 active Chapter 99 overlay apply: 9903.88.03 (section301 +25%). Imports from China typically incur the Section 301 / IEEPA additional duties listed above; imports from Vietnam, Mexico, India and other origins generally pay only the MFN base unless an origin-specific overlay applies. Antidumping (AD) and countervailing duty (CVD) cases are NOT evaluated on this page — check ADCVD orders separately. Source: USITC HTS release 2026HTSRev6. CBP determines the binding classification and duty at entry.

Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3: · Iron oxides and hydroxides
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HTS CODE
2821.10.00
General (MFN)3.7%
SpecialFree (A,AU,BH,…
Other (Column 2)25%
§99 overlays1

Base tariff columnsBase tariff columns

Column rates from the USITC HTS export. The column that applies depends on origin and trade-program eligibility.

General (MFN)3.7%
SpecialFree (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Other (Column 2)25%

Official source: USITC Harmonized Tariff Schedule. Duty at entry is determined by US Customs and Border Protection (CBP). AD/CVD and product-specific exclusions are not evaluated by default.

Chapter 99 overlaysChapter 99 overlays

  • 9903.88.03 section301 +25% active
    Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Sample duty by originSample duty by origin

Illustrative calculation at USD 10,000 customs value, standard (non-preferential) claim. Chapter 99 additional duties applied where status is active.

Origin Base rate Chapter 99 Total rate Duty (USD)
China (CN) 3.7% 25% 28.7% $2,870.00
Vietnam (VN) 3.7% 0% 3.7% $370.00
Mexico (MX) 3.7% 0% 3.7% $370.00
India (IN) 3.7% 0% 3.7% $370.00
South Korea (KR) 3.7% 0% 3.7% $370.00

§ RELATED ENTRIESStatistical suffixes under HTS 2821.10.00

All 10-digit statistical reporting suffixes under 2821.10.00.

§ FAQFrequently asked questions

What is the US import duty for HTS 2821.10.00?
HTS 2821.10.00 (Iron oxides and hydroxides) has a general (MFN) column rate of 3.7%, plus 1 active Chapter 99 overlay(s) that may apply depending on origin (for example, Section 301 or IEEPA actions). Final duty is determined by CBP at entry.
Which Chapter 99 rules are currently linked to HTS 2821.10.00?
The following rules are attached in our snapshot: 9903.88.03 (section301) — section301. Each rule has its own country scope and effective dates — check the rule detail on this page for the additional rate and status before applying it to your shipment.
How do I compare duty from different countries for HTS 2821.10.00?
Use the origin compare view to evaluate this HS code against alternative countries. The calculator applies each country-specific Chapter 99 overlay and the appropriate column rate.
Is this the binding duty determination?
No. This page is a reference built on USITC + Federal Register open data. The binding classification and duty amount is determined by CBP at entry. AD/CVD and product-specific exclusions require separate review.