7406.10.00.00 from Zambia resolves to 50.00%: a Column 1 General rate of 0.00% and one trade remedy on top of it. That is one line of many under copper. Rates within the category differ, so the figure is what this line draws rather than a rate for the category as a whole.
| Program | Rate as published | Contribution | Reported under | In force from |
|---|---|---|---|---|
| Column 1 General (MFN) | Free | 0.00% | — | not established |
Source: USITC, Harmonized Tariff Schedule of the United States, 2026 HTS Revision 17, published 2026-08-24. Verified 2026-09-01. | ||||
| Section 232 | The duty provided in the applicable subheading + 50% | 50.00% | 9903.82.02 | 2025-06-04 |
Source: FEDERAL REGISTER, Proclamation 11021, adjusting imports of aluminum, steel and copper (FR Doc. 2026-06960), published 2026-04-09. Verified 2026-09-01. | ||||
What is in scope
Section 232 reaches copper under Chapter 99 heading group 9903.82 and the provisions of HTS 74. The full list of classifications and the instrument behind the action are on the copper page.
Zambia faces no country-wide additional duty. Every layer above is product-specific, so it turns on the classification rather than on the origin alone. The Zambia page sets out every action reaching that origin.
Reading this figure
Duty is assessed at the ten-digit statistical line, not at the category and not at the four-digit heading. A different line under copper can carry a different Column 1 rate and, where a trade remedy enumerates provisions rather than a whole chapter, a different set of layers. The calculator resolves a specific code, origin and value.
For what each layer above is: Section 232, Section 301, Section 338, how the layers combine.
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