CHICAGO, May 30 /PRNewswire-FirstCall/ -- Mittal Steel USA has fully restored its steelmaking operations at the No. 3 basic oxygen shop at its Indiana Harbor plant in East Chicago, Ind. Fully automated operation of both furnace vessels was achieved on May 28, one month after the fire that severely damaged this facility. "I would like to thank our customers for working with us to minimize the impact of the fire," said Louis L. Schorsch, president and chief executive officer. "Through the outstanding efforts of our employees at Indiana Harbor -- as well as at other facilities that stepped up to help compensate for the loss in production capability -- we have been able to restore full production much more effectively than originally expected. Our sister operations outside the USA also pitched in, confirming the value of our being part of the world's first truly global steel company." Although no one was hurt seriously, the No. 3 steel production shop was idled April 28 when a ladle descended unexpectedly and dumped more than 200 tons of molten iron to the shop floor. Initial estimates were that the shop would lose 300,000 tons of steelmaking, but Schorsch said the rapid recovery and the coordination of other operations throughout the company have trimmed the total loss to less than 200,000 tons. "Due to the commitment and efforts of the entire Indiana Harbor team, we commenced single-vessel operation on a manual basis on May 12," Schorsch commented, "and commissioned the new control room on May 24. This certainly exceeded our initial projections." As reported earlier, the company expects the damage and losses associated with business disruption to be covered by insurance. A thorough investigation of the fire, by management and the United Steelworkers, continues. About Mittal Steel USA Mittal Steel USA, with its affiliates, is the largest steel producer in North America and the largest integrated steel producer in the United States. It serves a broad U.S. manufacturing base. The company was formed in April 2005 and consists of the former Ispat Inland Inc. and the former International Steel Group. It has operations in 12 states of the United States. About Mittal Steel Mittal Steel Company (NYSE:MT)(AEX:MT) 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." Forward-Looking Statements This communication contains forward-looking information and statements about Mittal Steel Company N.V. and Mittal Steel USA Inc. Forward-looking statements are statements that are not historical facts. These statements include financial projections and estimates and their underlying assumptions, statements regarding plans, objectives and expectations with respect to future operations, products and services, and statements regarding future events and performance. Forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 are generally identified by the words "believe," "expect," "anticipate," "target" or similar expressions. Although Mittal Steel USA's management believes that the expectations reflected in such forward-looking statements are reasonable, investors and holders of Mittal Steel USA's securities are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Mittal Steel USA, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include those discussed or identified in the public filings with the SEC made or to be made by Mittal Steel USA, including on Form 10-K. Mittal Steel USA undertakes no obligation to publicly update its forward-looking statements, whether as a result of new information, future events, or otherwise. DATASOURCE: Mittal Steel USA CONTACT: Media, David C. Allen, Mittal Steel USA, +1-312-899-3692; or Finance, Thomas A. McCue, Mittal Steel, +1-312-899-3927

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