The companies said they had entered into an agreement with the U.S. government to alleviate any national security concerns.

President Donald Trump would have unique influence over the operations of U.S. Steel under the terms of the investment being made by Nippon Steel.

Nippon Steel's $14.9 billion bid for U.S. Steel poses a national security risk, but those concerns can be mitigated if the companies fulfill certain conditions laid out by the Trump administration, U.