In a separate and broader challenge, the Court of International Trade also ruled against the administration’s tariffs program. A different appeals court, the Federal Circuit, is set to hear arguments in that case next month. Both lower court rulings have been paused, allowing Mr. Trump to press forward with his tariffs.

The U.S. administration's policy shift to introduce high tariffs will increase the strategic importance of Nippon Steel's business development in the U.S. market, the top Japanese steelmaker's CEO, Eiji Hashimoto,

The country’s first billion-dollar corporation and at one time its largest company has been sold despite national security concerns. U.S. Steel has been sold to Japanese-based Nippon Steel Corporation

Nippon Steel has finalized its $14.9 billion acquisition of U.S. Steel, buying all shares at $55 each in a landmark deal supported by President Donald Trump. The Japanese steelmakers 18-month effort to secure U.