Taiwan corrosion-resistant steel faces US antidumping duties
The U.S. Department of Commerce concluded in May 2026 that certain corrosion-resistant steel products (CORE) from Taiwan are being dumped in the US market. Commerce issued final antidumping duty determinations covering the review period of July 1, 2023 through June 30, 2024. Importers of Taiwanese CORE products must verify their supplier pricing and classifications to ensure compliance with the new duty rates and avoid assessment penalties.
Photo: 정규송 Nui MALAMA / PexelsTaiwanese Steel Dumping Finding
On May 18, 2026, the U.S. Department of Commerce issued final results of an administrative review determining that "certain corrosion-resistant steel products (CORE) from Taiwan are being sold in the United States at less than normal value during the period of review (POR), July 1, 2023, through June 30, 2024."
This marks the conclusion of Commerce's investigation into pricing practices by Taiwanese manufacturers and exporters of CORE products. The final dumping determination means that antidumping duties now apply to covered shipments of these steel products originating in Taiwan.
Who Is Affected
Importers bringing corrosion-resistant steel from Taiwan into the US market are directly affected. The dumping finding applies specifically to CORE products—a category that typically includes stainless steel and other corrosion-resistant alloy sheets and strips used in automotive, appliance, and industrial applications. The scope and specific HS classifications covered by this order should be verified against the full Federal Register notice, as the source body does not enumerate individual product codes or tariff lines.
Duty Assessment and Compliance
While the source does not specify individual company duty rates or dollar thresholds, administrative reviews under US antidumping law typically result in company-specific dumping margins that apply retroactively to entries during the POR. Importers must identify whether their shipments fall within the product scope and are subject to cash-deposit or duty-assessment obligations.
What this means for shippers
Review all current and pending shipments of Taiwanese CORE products for HS classification accuracy and supplier pricing documentation. Recalculate landed cost estimates to account for antidumping duties retroactive to July 1, 2023. Verify your supplier's cash-deposit obligations and monitor Commerce's final determinations for company-specific duty rates—failure to account for these duties can trigger unexpected assessments and penalties.
