Mittal Steel - Burns Harbor Upgrades Continuous Heat Treating Line

CHICAGO, May 21 /PRNewswire-FirstCall/ -- The world's leading steel manufacturer, Arcelor Mittal , announced today that it is further improving its position as the recognized market leader in cold rolled Advanced High Strength Steel (AHSS) by upgrading the Continuous Heat Treating Line at the company's Mittal Steel - Burns Harbor facility.

Arcelor Mittal is providing customers with additional volume of AHSS by initiating a major upgrade to the company's existing Continuous Heat Treating Line located in Burns Harbor, Indiana. The upgrade at the Burns Harbor line, combined with the company's #3CAL line at Indiana Harbor, will increase Arcelor Mittal's U.S. production capacity of AHSS (including dual-phase and martensitic) to almost 1,000,000 tons per year. These lines will produce a full portfolio of Cold Rolled AHSS to meet growing demand for the company's sophisticated automotive OEM applications.

"We are excited about this significant investment and believe that it solidifies our position in this strategically important market," said Michael G. Rippey, president and chief executive officer of Mittal Steel USA. "Adding capacity to support customer demand for AHSS further reinforces our commitment as the leading steel supplier to the North American auto manufacturers."

Mittal Steel USA is currently the largest North American supplier of AHSS and Ultra-High-Strength Steels (UHSS) through its #3 CAL line at its Indiana Harbor facility. The more than 20 years of experience gained from running this line, along with technological expertise provided through the company's global R&D resources, will ensure that the upgraded line will have state-of-the-art production capabilities and unparalleled operational experience.

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 of the United States.

About Arcelor Mittal

Mittal Steel USA is a subsidiary of Arcelor Mittal, the world's leading steel company by both revenue and production. The company operates 61 plants across 27 countries, employing some 320,000 employees.

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 Company N.V. 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 Company, N.V., 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 Company, N.V. including on Form 20-F. Mittal Steel Company, N.V. and Mittal Steel USA undertake no obligation to publicly update its forward-looking statements, whether as a result of new information, future events, or otherwise.