President Trump on Friday cleared way for Nippon Steel purchase of U.S. Steel, including unusual control for the president.

The national security agreement between President Donald Trump, Nippon Steel Corp., and US Steel to merge the two companies opens the door to unprecedented control by the president over the steelmaker’s operations and its relations with the workers’ union.

The U.S. government's ownership of a golden share in U.S. Steel will not block Nippon Steel from taking any management action that it deems appropriate, the Japanese steelmaker's CEO said on Thursday.