Shareholers Approve Merger of MittalSteel into ArcelorMittal

The Extraordinary General Meeting of shareholders of Mittal Steel Company N.V. approved the merger of Mittal Steel into ArcelorMittal, a wholly-owned subsidiary of Mittal Steel. 98.8% of the votes cast at the Extraordinary General Meeting were cast in favor of the proposed merger. The merger is expected to be effective Monday, 3 September 2007.

The merger is the first step in the two step merger process between Mittal Steel and Arcelor S.A. 945,207,771 shares, or 66.6% of Mittal Steel’s outstanding share capital, were present or represented at the Extraordinary General Meeting.

Upon effectiveness of the merger, holders of Mittal Steel shares will automatically receive one newly issued ArcelorMittal share for every one Mittal Steel share on the basis of their respective holdings as entered in the relevant Mittal Steel shareholder registry or their respective securities accounts: