CNN  —  Nippon Steel has finalized its deal to buy 100% of US Steel, the iconic steelmaker that was once the world’s most valuable company and a cornerstone of American industrial might. The companies announced Wednesday that the two had completed the partnership. Under the terms of the deal first announced in December 2023, Nippon will buy US steel for $55 per share, or $14.1 billion. The company will also retain its name and Pittsburgh, Pennsylvania headquarters. But while Nippon is buying