![](https://assets-varnish.triblive.com/2024/08/7686588_web1_ptr-steelannouncement02-050319.jpg)
Editorial: The promise and the threat of Nippon Steel's investment announcement
On Wednesday, Nippon Steel made a promise. The Japanese giant would invest “no less than $1 billion” into the U.S. Steel operations in the Greater Pittsburgh area. “Nippon Steel believes that a transformed Mon Valley Works will expand U. S. Steel’s ability …