Analysis
May 5, 2026
Commerce initiates new tin mill trade case
Written by Laura Miller
The Commerce Department has initiated a new trade case investigating allegedly dumped and subsidized imports of tin mill products.
The move comes after last month’s petitions from U.S. Steel and the United Steelworkers. They are seeking anti-dumping duties on tin mill products from China, Taiwan, and Turkey, and countervailing duties on the same product from China.
The two petitioners believe the purportedly dumped and subsidized imports are injuring the US industry. They’ve alleged dumping margins of up to 1,077% for China, 160% for Taiwan, and 193% for Turkey.
“The petitioners contend that the industry’s injured condition is illustrated by a significant increase in the volume of subject imports; increased market share of subject imports; underselling and price depression and/or suppression; idled facilities; lost sales and revenues; and adverse impact on operational and financial performance,” Commerce stated in its case initiation notice.
The agency found sufficient evidence to support the allegations and thus took up the case.
In its investigation, Commerce will use the period of investigation from April 1, 2025, to March 31, 2026, for Taiwan and Turkey. Because China is a non-market economy, its investigation period will be Oct. 1, 2025, through March 31, 2026.
The International Trade Commission (ITC) will make an initial injury determination by June 1. An affirmative injury ruling will move the case forward, while a negative ruling would end it. In the event of an affirmative injury ruling by the ITC, Commerce will issue preliminary AD and CVD margin determinations in late September.
