Commerce Issues Final AD/CVD Duties on Corrosion-Resistant Steel from 10 Countries — ITC Confirms Injury
Why It Matters for Steel Warehouse
Corrosion-resistant steel (galvanized and Galvalume) is a significant product category for Steel Warehouse's flat-rolled processing and distribution operations. Steel Warehouse's customers in HVAC, appliances, construction, and automotive all consume coated flat-rolled products. The CORE AD/CVD orders: 1. **Support domestic HDGI pricing** — reduced import competition from 10 countries strengthens the floor price Cleveland-Cliffs and Nucor can hold on HDGI 2. **Affect SW's purchasing** — if SW sources any CORE from Brazil (where it has operations) or other covered countries, those imports now carry significant additional duties 3. **Create customer cost pressure** — OEM customers using HDGI for products like appliances and HVAC equipment will see input costs rise 4. **Brazil cross-border note** — Brazil is covered by both AD and CVD orders; Steel Warehouse's Brazil operations should confirm whether any steel flow between the Brazil entity and U.S. operations could trigger coverageFirst reported: 2026-03-08 Section: B — Anti-Dumping & Countervailing Duty Cases
The U.S. Department of Commerce issued final affirmative determinations in both the antidumping (AD) and countervailing duty (CVD) investigations of Corrosion-Resistant Steel (CORE) products from ten trading partners: Australia, Brazil, Canada, Mexico, the Netherlands, South Africa, Taiwan, Turkey, the UAE, and Vietnam. The U.S. International Trade Commission (ITC) subsequently made a unanimous affirmative final determination that CORE imports from these countries materially injured the U.S. steel industry — triggering the issuance of formal AD/CVD duty orders. These duties are in addition to existing Section 232 tariffs, meaning covered CORE imports now face a combined duty burden that can reach well above 50%.
The case was initiated on September 5, 2024, when domestic producers — Steel Dynamics, Nucor, U.S. Steel, and Wheeling-Nippon Steel — filed petitions alongside the United Steelworkers (USW). Preliminary affirmative determinations were issued on April 4, 2025, at which point cash deposit requirements were established on imports. CORE products in scope include flat-rolled steel clad, plated, or coated with zinc, aluminum, or zinc/aluminum/nickel/iron-based alloys — covering hot-dip galvanized (HDGI), electrogalvanized (EG), Galvalume, and aluminized steel products. The investigations covered imports from all 10 countries for AD, and from Brazil, Canada, Mexico, and Vietnam for CVD.
A concurrent Federal Register notice (Public Inspection, March 2026) confirms ongoing administrative reviews of existing CORE orders on South Korea, with the March 9, 2026 Federal Register documenting initiation of new administrative reviews across multiple steel AD/CVD orders with January anniversary dates.
The practical market effect of these final orders: imported CORE from any of the 10 covered countries now faces AD/CVD duty rates on top of the 50% Section 232 tariff, making them effectively noncompetitive against domestic HDGI and coated products. This structurally redirects CORE demand to domestic producers — primarily Cleveland-Cliffs (largest domestic HDGI producer), Nucor, and Steel Dynamics.
Sources
- New AD/CVD Petitions on Corrosion-Resistant Steel from 10 Countries — Akin Gump
- Commerce Initiates CORE AD/CVD Investigations — Trade.gov
- Commerce Final Determinations — CORE AD/CVD — Trade.gov
- Steel Dynamics Applauds Unanimous ITC Injury Vote — PR Newswire
- Federal Register — AD/CVD Administrative Reviews Initiated March 9, 2026
Update — 2026-03-08
Initial entry — story first created. Final determinations issued; ITC unanimous affirmative. CORE from 10 countries now subject to AD/CVD duties on top of 50% Section 232. Brazil covered by both AD and CVD — flag for SW Brazil operations.