On September 5, 2024, some US steel companies, including Steel Dynamics, Nucor Corporation, United States Steel, and Wheeling-Nippon Steel, as well as United Steelworkers, submitted a petition to the US Department of Commerce (USDOC) to initiate an antidumping (AD) investigation on imports of corrosion-resistant flat rolled steel from Australia, Brazil, Canada, Mexico, the Netherlands, South Africa, Taiwan, Turkey, the UAE, and Vietnam.

Meanwhile, they also filed a countervailing duty (CVD) petition against the same products from Brazil, Canada, Mexico, and Vietnam.

These petitioners alleged that the imports of goods from these countries have materially injured the US domestic steel industry by their prices at dumped prices and the governments' countervailable subsidies.

The USDOC is scheduled to make its final determination for the AD and CVD cases by August 18, 2025.