US Section 232 duty on semi-finished copper (Aug 2025); electrical grid equipment got a 15% transitional rate through 2027
50% tariffobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| As of | 2025–2026 |
| Source | White House / CBP / Congress.gov · Proclamation (Jul 30 2025): 50% Section 232 duty on semi-finished copper and intensive copper derivatives effective Aug 1 2025; phased 15% (2027) / 30% (2028) universal duty on refined copper recommended, conditional on mid-2026 review |
| Review | checking…review by 2026-09-04 · fast cadence |
| Recorded changes | last 2026-06-29 |
| Claim id | us-section-232-duty-on-semi-finished-copper-aug |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.