U.S. Steel grows to 40% of Nippon Steel profit as prices surge

American gains fueled by tariffs, data centers outpace Japan weakness, for now U.S. Steel is benefiting from a surge in steel prices as tariffs weigh on imports and data centers drive demand. (Photo by Hiroki Endo) TOKYO/NEW YORK -- U.S. Steel is expected to account for over 40% of Nippon Steel's July-September profit, thanks to a jump in prices for American steel products, but a Democratic-controlled Congress could emerge as a risk factor if it moves to rein in the AI sector.