While the retail industry spent the past week digesting the one-year anniversary of IEEPA Liberation Day tariffs, a different tariff regime quietly got restructured — and it took effect this morning. President Trump signed a proclamation on April 2 modifying the Section 232 tariffs on steel, aluminum, and copper, and as of 12:01 AM ET on April 6, the new rules govern every shipment containing these metals.

The mechanism is different from IEEPA, and the politics are lower-profile. But for retailers sourcing appliances, hardware, cookware, home goods, auto parts, and a broad range of consumer products with metal components, the implications could be just as significant.

What Just Changed

The core shift is methodological. Previously, Section 232 tariffs on so-called "derivative products" — meaning goods that contain steel, aluminum, or copper but aren't raw metal themselves — were assessed only on the metal content value embedded in the product. An imported refrigerator with $200 worth of steel in a $900 unit would be taxed on that $200, not the full value.

That changed this morning. The proclamation now directs tariffs to apply to "the full customs value of the imported goods, regardless of their metal content." The same refrigerator now faces tariffs on the entire $900 customs value.

The new tiered rate structure is:

  • 50% on articles made entirely or almost entirely of aluminum, steel, or copper (raw forms, coils, sheet, rod)
  • 25% on derivative articles substantially composed of these metals (downstream manufactured goods)
  • 15% transitional rate for metal-intensive industrial and electrical grid equipment, through December 31, 2027
  • 10% for derivatives made entirely from U.S.-origin metals

Crucially, products composed of 15% or less steel, aluminum, or copper by value are exempt entirely — a carveout that provides relief for goods with minimal metal content.

Why This Hits Retail Differently

IEEPA tariffs (the ones now under legal challenge) were broad-based levies applied at the country of origin level. Section 232 tariffs are product-specific and metal-specific, which makes them harder to reroute around — and harder to anticipate based on country diversification alone.

A retailer that moved sourcing from China to Vietnam to escape IEEPA tariffs may have done little to prepare for Section 232 exposure if the products contain meaningful amounts of steel or aluminum. The metal tariffs follow the metal, not the factory's ZIP code.

According to KPMG's tariff analysis, the largest flow by trade value sits in what the proclamation calls Annex I-B — $227 billion worth of downstream manufactured articles across 326 product categories, including machinery, electrical equipment, and construction materials. These are the derivative products most likely to hit retail shelves.

For home improvement and hardware retailers, this matters enormously. Appliances, tools, cookware, shelving, fixtures, and countless consumer goods contain steel, aluminum, or copper at meaningful percentages. The move to full-value assessment multiplies the effective tariff burden in ways that don't scale linearly with product price.

Home Improvement Retail Takes the Direct Hit

Home Depot and Lowe's are the obvious front-line exposures. Both chains carry deep assortments of metal-intensive products — from major appliances to HVAC systems, lighting hardware, hand tools, power tools, and building materials. Many of these products are sourced internationally, often from countries that aren't otherwise under elevated IEEPA tariffs.

Neither company has commented specifically on the Section 232 restructuring yet. But Lowe's is already navigating a major corporate restructuring that includes moving resources toward stores and away from tech and product management support functions — precisely the kind of talent that would be pricing this exposure.

For appliance retailers including Best Buy, regional chains, and the appliance departments at Walmart and Target, the full-value calculation compounds what was already a difficult pricing environment. Appliances contain significant amounts of steel and aluminum. A 25% tariff on the full value of an imported appliance is a materially different number than 25% on just the metal content — in some cases four to five times larger in dollar terms, depending on what percentage of the product's value is derived from metal.

The Pharma Exception Points to What's Coming

The same April 2 executive action also imposed separate 100% tariffs on certain branded pharmaceutical imports — a signal that the administration's Section 232 authority is being applied expansively beyond traditional industrial goods. The pharma tariffs carry different effective dates (July 31 for listed companies with no pricing agreements, September 29 for others), but the pattern is consistent: the administration is using Section 232 to target specific industries where it wants domestic production or price concessions.

Retailers with pharmacy counters will face that separately. But the metals restructuring is live now.

What Retailers Should Do

According to trade compliance specialists at Cassidy Levy Kent, importers and retailers need to immediately audit their product catalogs against the new Annex classifications. The methodology change is retroactive to shipments arriving on or after April 6 — any imports currently in transit that arrive after today face the new calculation.

For retail buyers currently mid-negotiation on summer merchandise, the landed cost math needs to be re-run. For finance teams already budgeting Q2 and Q3 gross margin, the revised burden needs to be reflected in pricing models.

This one crept up quietly. It shouldn't stay quiet for long.