President Trump on Friday cleared the way for Japan-based Nippon Steel to potentially acquire U.S. Steel, though details about the structure of the deal — including a possible "golden share" held by the federal government — remain unclear.

The partnership between US Steel Corp and Nippon Steel Corp has reached a new phase, with an agreement on US national security guarantees, in addition to the so-called “golden share” advantage obtained by US President Donald Trump’s administration.

President Donald Trump signed an executive order paving the way for a Nippon Steel investment in U.S. Steel, so long as the Japanese company complies with a “national security agreement” submitted

President Trump’s foray into the takeover could reshape the future of foreign investment in the United States.