Mittal Steel Company Hosts Investor Event in Chicago; Live Webcast Available on www.mittalsteel.com

CHICAGO--March 14, 2006--Mittal Steel Company, the world's largest and most global steel company, is today hosting an investor event in Chicago to discuss the company's strategy for its North American, European, Asian and African mining operations. The event will be webcast live beginning at 9 AM Central Time on www.mittalsteel.com. The executive presentation schedule is as follows:

9:00 AM       Mittal Steel Strategy- Lakshmi Mittal and Aditya Mittal

10:30 AM      Mittal Steel Americas - Lou Schorsch and Richard Leblanc

1:00 PM       Mittal Steel Europe - Roeland Baan

2:45 PM       Mittal Steel Asia & Africa and Mining Operations -
              Davinder Chugh

About Mittal Steel Company

Mittal Steel Company is the world's largest and most global steel company. The company has operations in 16 countries, on four continents. Mittal Steel encompasses all aspects of modern steelmaking, to produce a comprehensive portfolio of both flat and long steel products to meet a wide range of customer needs. It serves all the major steel consuming sectors, including automotive, appliance, machinery and construction.

For 2005, Mittal Steel had revenues of US$28.1 billion and steel shipments of 49.2 million tons. The company trades on the New York Stock Exchange and the Euronext Amsterdam under the ticker symbol "MT."