The U.S. Department of Commerce issued preliminary affirmative determinations on April 3, 2025, in antidumping duty investigations covering corrosion-resistant steel products (CORE) from Australia, Brazil, Canada, Mexico, the Netherlands, South Africa, Taiwan, the Republic of Türkiye, the United Arab Emirates, and Vietnam. The preliminary dumping margins range from 2.31% for ArcelorMittal Dofasco in Canada to 137.76% for Brazil’s Companhia Siderurgica Nacional group. Petitions were originally filed September 5, 2024, by a coalition of domestic steelmakers and the United Steelworkers union, and Commerce initiated the investigations September 25, 2024.
What it means
The preliminary determinations require U.S. Customs and Border Protection to collect cash deposits from importers of CORE from the named countries at the preliminary dumping rates, pending final determinations. Commerce is also conducting concurrent countervailing duty investigations covering CORE from Brazil, Canada, Mexico, and Vietnam. Commerce’s final determinations are scheduled for August 18, 2025; if those are affirmative, the International Trade Commission will issue its own final determinations by October 2, 2025, with antidumping duty orders potentially taking effect October 9, 2025. For Canada and certain Mexican producers, cash deposit rates are listed as not applicable despite positive dumping margins, a distinction Commerce noted in its preliminary findings.
The petitioners — Steel Dynamics, Inc. of Fort Wayne, Ind.; Nucor Corporation of Charlotte, N.C.; United States Steel Corporation of Pittsburgh, Pa.; Wheeling-Nippon Steel, Inc. of Follansbee, W.Va.; and the United Steelworkers — filed on eight of the ten countries. Webb Wheel Products, Inc. of Cullman, Ala. joined the Mexico petition. The Canada petition was filed by Steel Dynamics and Nucor only. Commerce said it maintains 732 antidumping and countervailing duty orders in total to date.
Key facts
- Product: corrosion-resistant steel products (CORE)
- Countries under investigation: Australia, Brazil, Canada, Mexico, the Netherlands, South Africa, Taiwan, Türkiye, UAE, Vietnam
- Petitions filed: September 5, 2024; investigations initiated: September 25, 2024
- Commerce preliminary determinations issued: April 3, 2025
- Preliminary dumping rate, BlueScope Steel (Australia): 17.01%
- Preliminary dumping rate, Companhia Siderurgica Nacional group (Brazil): 137.76%
- Preliminary dumping rate, Usiminas group (Brazil): 31.53%
- Preliminary dumping rate, ArcelorMittal Dofasco (Canada): 2.31%; cash deposit rate: not applicable
- Preliminary dumping rate, Ternium Mexico: 3.43%; cash deposit rate: 1.87%
- Preliminary dumping rate, Galvasid/Perfiles LM (Mexico): 14.43%; cash deposit rate: not applicable
- Commerce final determinations scheduled: August 18, 2025
- ITC final determinations scheduled: October 2, 2025 (contingent on affirmative Commerce final)
- Potential order issuance: October 9, 2025 (contingent on both Commerce and ITC affirmative finals)
- Total Commerce AD and CVD orders maintained to date: 732
Source: U.S. Department of Commerce preliminary determination notice (trade.gov)