CEO Lakshmi Mittal's family owned 88% of the company. Mittal Steel was based in Rotterdam but, managed from London by Mittal and his son Aditya. It was formed when Ispat International N.V. acquired LNM Holdings N.V. (both were already controlled by Lakshmi Mittal) and merged with International Steel Group Inc. (the remnants of Bethlehem Steel, Republic Steel and LTV Steel) in 2004. On 25 June 2006, Mittal Steel decided to merge with Arcelor, with the new company to be called Arcelor Mittal. The merger has been successfully approved by shareholders and directors of Arcelor making L.N. Mittal the largest steel maker in the world.
Mittal steel is the world’s number one steel company, with 310,000 employees in more than 60 countries. The company was the leader in all major global markets, including automotive, construction, household appliances and packaging, with leading R&D and technology, as well as sizeable captive supplies of raw materials and outstanding distribution networks. An industrial presence in 27 European, Asian, African and American countries exposes the company to all the key steel markets, from emerging to mature, positions it will be looking to develop in the high-growth Chinese and Indian markets.
In 2005 Lakshmi Mittal flew into Jharkhand, India to announce a $9 billion investment to build a greenfield steel plant with a 12 million tonnes per annum production capacity.
On 27 January 2006 it announced a $23.3 billion (€18.6 billion, £12.7 billion) bid for Arcelor. On 19 May 2006 Mittal increased its offer for Arcelor by 38.7% to $32.4bn, or $47.34 per share (€25.8bn, €37.74 per share). On 25 June 2006 Arcelor, in a board meeting announced that it has accepted a further sweetened offer ($50.68 or €40.4 per share) and the new company would now be called Arcelor-Mittal, thus successfully ending one of the most controversial and publicised takeover bids in modern corporate history. Arcelor-Mittal is now by far the largest steelmaker in the world by turnover as well as volume, controlling 10% of the total world steel output.