Lakshmi Mittal, chairman of ArcelorMittal, told President Zelenskiy yesterday that his Ukraine unit is launching a ‘Steel Billion’ program, a nearly $1 billion investment to bring the steel maker in compliance with EU ‘green steel’ rules, according to the president’s website. By the end of 2023, ArcelorMittal Kryvyi Rih, Ukraine’s largest integrated steel company, plan...