The complaints, filed by Nucor Corp., Steel Dynamics Inc., United States Steel Corporation and Wheeling-Nippon Steel Inc., along with the union, allege that domestic producers are being undercut by unfairly subsidized imports. 

The complaints name 10 countries in total: Australia, Brazil, Canada, Mexico, Netherlands, South Africa, Taiwan, Turkey, United Arab Emirates, and Vietnam.

“As we have for decades, U. S. Steel continues to lead the domestic industry in the fight against unfair trade on behalf of our workers, families, communities, and customers we serve. These new trade cases — the largest filed by U. S. Steel in nearly a decade — will address low-priced and subsidized CORE imports that continue to pour into the U.S. market,” said Duane D. Holloway, U. S. Steel senior vice president, general counsel and chief ethics & compliance officer.

“These cases aim to restore a level playing field and support our investments in Big River Steel’s new dual coating line and second mini-mill in Arkansas, as well as U. S. Steel’s CORE facilities across the country,” he said. 

USW International President David McCall said that corrosion-resistant sheet imports from the countries, excluding Canada, almost doubled from 690,000 tons in the first half of 2023 to 1.35 million tons in the first half of 2024. 

“In particular, imports from Vietnam almost quadrupled from 122,000 to 468,000 tons,” McCall said. “Vietnam is ramping up its steel industry and exports at the expense of U.S. workers, and we can’t repeat the mistakes with Vietnam that we’ve made with China in the past.”

Final determinations are not expected until October 2025.