Mr Wilbur Ross told Forbes.com to expect a formal offer from Mittal for rival Arcelor around mid-May. “We expect that regulatory approval will come in the next couple of weeks from European Securities Regulators” Mr Ross said. He added that Mittal Steel would not legally be able to proceed unless it had received the green light from five European countries and then the offer would be formally in front of Arcelor’s shareholders for the first time.