Section 232 April 2026 Update: 50% Tariffs, Copper, and What Importers Need to Do
The White House revised Section 232 on April 2, 2026. Many primary steel, aluminum, and copper articles now face 50% tariffs effective April 6.
If you import steel, aluminum, copper, or products that contain them, the most important tariff date on your calendar right now is April 6, 2026.
On April 2, 2026, the White House issued a new Section 232 proclamation that reshapes how industrial metals tariffs work. The headline is simple enough to spread quickly on social media: many primary steel, aluminum, and copper articles now move to 50%. The operational reality is more complicated. Some derivative products remain at 25%, the tariff base changes depending on the product, and origin-specific rules still matter for some entries.
This post is the practical importer version of the update: what changed, which products are most exposed, what to check before your next entry, and where TariffCenter users should expect the most confusion.
What changed on April 2, 2026
The new proclamation does three big things at once:
- It keeps Section 232 industrial metals policy moving beyond the older steel-and-aluminum-only framing.
- It puts copper firmly into the same compliance conversation as steel and aluminum.
- It splits the market between products that are now subject to 50% rates and products that remain at 25% for the current transition window.
The critical effective date is 12:01 a.m. Eastern time on April 6, 2026 for the new treatment described in the White House proclamation and annexes.
The headline rate structure
As of this April 2026 action, importers should think about Section 232 in two buckets:
| Product bucket | Working rate to check first | Why it matters |
|---|---|---|
| Primary steel, aluminum, and copper articles, plus certain intensive derivatives | 50% | This is the rate getting the most attention and the one most likely to shock buyers, suppliers, and finance teams |
| Many downstream steel, aluminum, and copper derivative products | 25% | These products still carry heavy exposure, but the rate may differ from the 50% headline depending on classification and annex treatment |
Why this update matters more than the headline
The last 30 days of discussion around metals tariffs show the same pattern: the headline spreads first, then operations teams discover the actual pain point is classification and product mapping.
That matters because many businesses do not import raw steel coils, unwrought aluminum, or cathodes of copper. They import finished or semi-finished goods that contain these metals: machinery, fasteners, structural components, industrial fittings, appliance parts, vehicle components, fabricated assemblies.
Those importers still have to answer more detailed questions:
- Is my product treated as a primary article or a derivative article?
- If it is a derivative article, does the 25% or 50% rule apply?
- Is the duty applied to the full entered value or to a narrower metal-content base?
- Does the product also stack with Section 301, Section 122, or other duties?
What copper changes for importers
Copper is the biggest strategic change in this proclamation. If you import products with meaningful copper content, you now need to treat copper exposure as a first-class tariff risk. That includes companies dealing in wire and cable, electrical components, connectors and fittings, industrial tubing, plumbing components, fabricated copper parts, and multi-metal assemblies.
What importers should do before April 6
- Pull a product list of every HTS code with steel, aluminum, or copper exposure
- Separate primary articles from derivative products
- Recalculate landed cost under two scenarios (current treatment and worst-case)
- Review customer quotes and long-term pricing commitments
- Tighten broker and counsel review on borderline classifications
Use our HS Code Lookup tool to validate product classification and our Duty Calculator to model the total burden.
Bottom line
The April 2, 2026 Section 232 proclamation is not just another tariff headline. It is a workflow change. Primary steel, aluminum, and copper importers face the most obvious shock, but the broader compliance problem sits with derivative products and multi-metal goods. If your business imports industrial-metal products, treat April 6, 2026 as a hard operating deadline, not just a news date.