International Steel Group Inc. (ISG) is extending the expiration date for its offer to exchange up to $600 million of its 6.5% Senior Notes due 2014, which have been registered under the Securities Act of 1933, for any and all of its unregistered outstanding 6.5% Senior Notes due 2014 issued on April 14, 2004.

The exchange offer, which had been scheduled to expire at 5:00 p.m. eastern time on Wednesday, Oct. 6, will now expire at 5:00 p.m. eastern time Friday, October 8, 2004, unless further extended. Outstanding notes were issued and sold in a transaction exempt from the registration requirements of the Securities Act of 1933. Approximately $597.5 million aggregate principal amount of the outstanding notes has been tendered to date.

The outstanding notes have not been registered under the Securities Act of 1933 and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements. The company cautions that this announcement does not constitute an offer to sell or the solicitation of an offer to buy, and that there shall be no sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state.

International Steel Group Inc. is one of the largest steel producers in North America. It produces a variety of steel products including hot-rolled, cold-rolled and coated sheets, tin mill products, carbon and alloy plates, wire rod and rail products and semi-finished shapes to serve the automotive, construction, pipe and tube, appliance, container and machinery markets.