9903.82.09 Consolidated Metal 232: Rate, Scope, and Stacking

Key Points

• HTS 9903.82.09 imposes a 25 percent additional duty on covered articles of copper and derivative aluminum and steel articles, effective April 6, 2026.
• The code covers articles described in subdivisions (c)(vi) through (viii) and (xi) of U.S. Note 16 to Subchapter III of Chapter 99, so the note text controls which goods are in scope.
• Goods that qualify under headings 9903.82.16, 9903.82.20 through 9903.82.26, or 9903.85.68 are expressly excepted from 9903.82.09, even if they would otherwise meet the product description.
• The 25 percent additional duty stacks on top of the regular Chapter 1-97 duty and any other applicable Section 301 or additional tariff columns, increasing landed cost materially for affected entries.
• As of August 20, 2026, importers must report 9903.82.09 as a secondary HTS line alongside the primary Chapter 1-97 classification on every affected entry summary.

On this page

1. What 9903.82.09 covers
2. The 25 percent rate and its effective date
3. Countries and goods in scope
4. Excepted headings: when 9903.82.09 does not apply
5. How 9903.82.09 stacks with other duties
6. Reporting 9903.82.09 on an entry
7. What importers should do
8. Key references

HTS 9903.82.09 is a Chapter 99 overlay code that adds a 25 percent additional duty to articles of copper and to derivative aluminum and steel articles as defined in U.S. Note 16 to Subchapter III of Chapter 99. It took effect on April 6, 2026, under the Consolidated Section 232 metals regime. Any importer, broker, or trade attorney handling copper goods or derivative metals shipments that entered on or after that date needs to assess whether this code applies. The links throughout this article go to the primary documents: the official Harmonized Tariff Schedule, Federal Register notices, and White House proclamations themselves. Read the source.

What 9903.82.09 covers

The official heading text for 9903.82.09 reads: "Except as provided for in headings 9903.82.16, 9903.82.20-9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)-(viii) and (xi) of U.S. note 16 to this subchapter."

Two product families are captured here:

• Articles of copper as described in U.S. Note 16(c)(vi) and related subdivisions. Copper articles are a distinct product group that joined the Section 232 metals framework under the Consolidated regime beginning April 6, 2026.
• Derivative aluminum and steel articles as described in U.S. Note 16(c)(vii), (viii), and (xi). Derivative articles are downstream manufactured goods whose content is predominantly aluminum or steel, and which are specifically enumerated in the note.

Because scope is defined by reference to U.S. Note 16 subdivisions, you must read the current note text in the Harmonized Tariff Schedule (hts.usitc.gov) to confirm whether a particular product falls within (c)(vi), (vii), (viii), or (xi). Do not rely on the heading text alone. If your product sits near the boundary of those subdivisions, confirm with a broker or verify against the current HTSUS before filing.

The 25 percent rate and its effective date

The additional duty rate under 9903.82.09 is 25 percent ad valorem, applied to the dutiable customs value of covered goods. This rate became effective on April 6, 2026, and remains in effect as of August 20, 2026. The facts block does not indicate a scheduled expiration date, so confirm continued applicability in the current HTSUS before filing entries after that date.

The 25 percent is assessed on customs value, so decisions about valuation methodology directly affect the dollar amount owed. For importers exploring valuation strategies, see our articles on first sale customs valuation and customs value freight deduction exclusions. Use the CustomsGenius duty calculator to model your total landed cost including the 25 percent overlay.

Countries and goods in scope

The facts block does not identify a country-specific carve-out or country-specific applicability for 9903.82.09 itself. The heading applies to covered articles regardless of country of origin, subject only to the excepted headings listed below. If you believe a country-of-origin-based exemption or alternative rate heading may apply to your shipment, check the full 9903.82 block in the HTSUS and confirm with your broker, because other headings in the 9903.82 series address country-specific and product-specific carve-outs. For example, our related articles cover UK-specific treatment under 9903.82.04 and UK derivative metals under 9903.82.05.

Excepted headings: when 9903.82.09 does not apply

The heading text opens with "Except as provided for in" and names three groups of competing headings. If your goods qualify under any of those headings, 9903.82.09 does not apply even if the product otherwise meets the copper or derivative-metals description:

• 9903.82.16: a specific carve-out heading within the consolidated metals block. Confirm its current scope in the HTSUS.
• 9903.82.20 through 9903.82.26: a range of headings that may reflect country-specific or product-specific alternative treatments. Each must be evaluated individually against the current HTSUS note text.
• 9903.85.68: a heading in the adjacent 9903.85 block. Check whether your goods' description and country qualify there before defaulting to 9903.82.09.

The excepted headings act as priority overrides. Classification logic requires you to test them first. Related exemption and reduced-rate headings in the same 9903.82 series are explained in our articles on 9903.82.08 (U.S.-content exemption), 9903.82.03 (zero-duty mixed-metal exemption), and 9903.82.01 (zero-duty exemption).

How 9903.82.09 stacks with other duties

Chapter 99 additional duties are cumulative. The 25 percent under 9903.82.09 is added on top of:

• The standard Column 1 (MFN) or Column 2 rate from the primary Chapter 1-97 classification.
• Any applicable Section 301 additional duties if the goods are also subject to those tariffs.
• Any other Chapter 99 overlays that independently apply to the same shipment.

For many copper and derivative-metal categories, the stacked total duty rate can be substantially higher than the base MFN rate alone. Model the full stack before finalizing a landed-cost estimate. If your goods carry assists such as tooling or molds provided to the foreign manufacturer, those amounts can increase dutiable customs value and therefore the 25 percent base, as described in our article on customs assists valuation.

Reporting 9903.82.09 on an entry

Chapter 99 codes are secondary HTS lines. On a CBP entry summary, you report the primary Chapter 1-97 classification on one line and add 9903.82.09 as a separate line for the same merchandise. Both lines reference the same commercial invoice value. CBP's Automated Commercial Environment (ACE) calculates the additional duty from the 9903.82.09 line. Confirm current ACE entry requirements and any applicable CSMS guidance at cbp.gov. Our overview of 2026 tariff codes provides additional context on the structure of this year's Chapter 99 landscape.

If a prior entry was filed without 9903.82.09 for goods that entered on or after April 6, 2026, a post-summary correction or protest may be required to report and pay the correct duty. For entries involving drawback or refund scenarios, see our article on Section 232 drawback corrections and ACE refund alerts.

What importers should do

• Confirm whether your copper or derivative-metal goods fall within U.S. Note 16(c)(vi), (vii), (viii), or (xi) by reading the current note text at hts.usitc.gov before filing any entry dated on or after April 6, 2026.
• Test the excepted headings (9903.82.16, 9903.82.20 through 9903.82.26, and 9903.85.68) against your product and origin before defaulting to 9903.82.09, because qualifying under an excepted heading eliminates this 25 percent charge.
• Calculate your full stacked duty rate, including Column 1 MFN, any Section 301 overlays, and the 25 percent additional, using your actual customs value, and model whether first-sale valuation or freight exclusions can appropriately reduce the dutiable base.
• Review any entries filed after April 6, 2026 that did not carry 9903.82.09 and determine whether post-summary corrections are needed to avoid unpaid-duty exposure.

Key references

• Harmonized Tariff Schedule of the United States (hts.usitc.gov): Official HTSUS, including Chapter 99, Subchapter III, heading 9903.82.09 and U.S. Note 16.
• U.S. Customs and Border Protection (cbp.gov): ACE entry requirements, CSMS messages, and Section 232 operational guidance.
• Federal Register (federalregister.gov): Notices and rules implementing the Consolidated Section 232 metals regime effective April 6, 2026.
• White House (whitehouse.gov): Presidential proclamations establishing and amending Section 232 metals duties.
• 9903.82.08: The U.S.-Content Exemption: Explains the exemption heading that may remove the 25 percent charge for goods with sufficient U.S.-origin metal content.
• 9903.82.07: Rate, Scope, and Stacking: Adjacent heading covering a related product category under the same consolidated framework.