THE US Department of Commerce increased prices on Nippon Steel Corp. for dumping products in the country, just as the Japanese steelmaker made an anti-import pledge to gain support for its $14.1 billion buyout United States Steel Company.

The Commerce Department imposed a dumping margin of 29% on Nippon Steel for selling hot-rolled steel in the United States at prices below normal value from October 2022 to September 2023, according to a preliminary study . decision published in the Federal Register. The November 13 decision was part of the department’s annual administrative review of a dumping case that has existed for…