Shareholders Approve First-Step Merger of Mittal Steel into ArcelorMittal

Shareholders Approve First-Step Merger of Mittal Steel into ArcelorMittal

Today, the Extraordinary General Meeting of shareholders of Mittal Steel Company N.V. (“Mittal Steel”) 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:
Holders of Mittal Steel shares whose shares are registered directly in Mittal Steel’s Dutch or Luxembourg or New York shareholder registry, will automatically receive newly issued ArcelorMittal shares through an entry in the shareholder registry of ArcelorMittal.
Holders of Mittal Steel shares whose shares are registered indirectly, that is through a book-entry system (such as Clearstream Luxembourg, Euroclear Belgium, Euroclear France, Euroclear Nederland or Iberclear), in Mittal Steel’s Dutch or Luxembourg shareholder registry, will automatically receive newly issued ArcelorMittal shares through a credit to their respective securities accounts.
Holders of Mittal Steel shares, whose shares are registered indirectly in Mittal Steel’s New York registry, that is through a book-entry system, will automatically receive newly issued ArcelorMittal shares through a credit to their respective securities accounts.

Upon the day of effectiveness of the merger, the ArcelorMittal shares will be listed and traded on Euronext Amsterdam by NYSE Euronext, Euronext Brussels by NYSE Euronext, Euronext Paris by NYSE Euronext, and the stock exchanges of Barcelona, Bilbao, Madrid and Valencia, listed on the Official List of the Luxembourg Stock Exchange and admitted to trading on the regulated market of the Luxembourg Stock Exchange. The ArcelorMittal shares will be listed and traded on the New York Stock Exchange as of Tuesday, 4 September 2007, because Monday, 3 September 2007 is a public holiday in the United States (Labor Day).

The Mittal Steel class A common shares, which (along with the Mittal Steel class B common shares) will automatically disappear in the merger, will no longer be listed and traded on Euronext Amsterdam by NYSE Euronext, Euronext Brussels by NYSE Euronext, Euronext Paris by NYSE Euronext, the stock exchanges of Barcelona, Bilbao, Madrid and Valencia, the New York Stock Exchange and listed on the Official List of the Luxembourg Stock Exchange and admitted to trading on the regulated market of the Luxembourg Stock Exchange as of the day of effectiveness of the merger. The last day of listing and trading of the Mittal Steel class A common shares on these exchanges is expected to be Friday, 31 August 2007.

ArcelorMittal and Arcelor currently expect to publish details concerning their merger (the second step in the two-step merger process between Mittal Steel and Arcelor) before the end of September 2007.

About ArcelorMittal

ArcelorMittal is the world’s number one steel company, with 320,000 employees in more than 60 countries. The company brings together the world’s number one and number two steel companies, Arcelor and Mittal Steel.

ArcelorMittal is 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.

ArcelorMittal key pro forma financials for 2006 show combined revenues of USD 88.6 billions, with a crude steel production of 118 million tonnes, representing around 10 per cent of world steel output.

ArcelorMittal is listed on the stock exchanges of New York (MT), Amsterdam (MT), Paris (MTP), Brussels (MTBL), Luxembourg (MT) and on the Spanish stock exchanges of Barcelona, Bilbao, Madrid (MTS) and Valencia.
Contacts

Contact information ArcelorMittal Investor Relations
Continental Europe +352 4792 2414
UK/Asia/Africa +44 207 543 1172
Americas +1 312 899 3569
Retail +352 4792 2434
Bonds/Credit +33 1 71 92 10 26
or
Contact information ArcelorMittal Communications
E-mail: press@arcelormittal.com
Phone: +352 4792 5000
or
ArcelorMittal Corporate Communications
Nicola Davidson, +44 207 543 1162 / 1172
Jean Lasar, +352 4792 2359
Maitland Consultancy:
Tom Siveyer / Martin Leeburn +44 20 7379 5151
Belgium
Charles-Hubert Gernaert, Comfi, +32 2 290 90 90
North America
Bill Steers, +1 312 899 3817
Netherlands
Leon Melens, Smink, Van der Ploeg & Jongsma
+31 20 647 81 81
Germany
Phoebe Kebbel, Herring Schuppener, +49 69 92 18 74 77
France
Sandra Luneau, +33 1 71 92 00 58
Anne France Malrieu / Grégoire Lucas, Image 7
+33 1 5370 7470
Spain
Ignacio Agreda, +34 94 489 4162
Oscar Fleites, +34 98 512 60 29
Keith Grant, +34 639 760 397