His approval capped a tumultuous 18-month effort that survived union opposition and two national security reviews.

The move will also prevent Nippon Steel from transferring production or jobs outside the U.S. without consent of the U.S. president.

U.S. President Donald Trump said on Thursday the United States had a "golden share" in U.S. Steel as part of a deal for Nippon Steel to buy the iconic American company.

Sen. Kim Ward, the three-term legislator from Greensburg and the highest-ranking Republican in the upper chamber, recently told The Center Square the long fight to the finish line was a personal mission to protect the commonwealth’s legacy.

WASHINGTON (Reuters) -A U.S. Appeals court on Friday extended a pause in litigation between Nippon Steel and the Trump administration as the two sides put the finishing touches on an agreement that would allow the Japanese steelmaker to acquire U.S. Steel.

By Alexandra Alper (Reuters) -Shares of U.S. Steel dipped after a Nippon Steel executive told the Japanese Nikkei newspaper that its planned takeover of the company required "a degree of management freedom" to go ahead,