Arcelor SA has announced that an additional 7,967,623 common shares of Dofasco Inc. including shares deposited by guaranteed delivery, were deposited to Arcelor’s offer to acquire all of the outstanding common shares of Dofasco for CAD 71.00 in cash per Dofasco common share between 20 February 2006, the previous expiry date of the offer, and 8:00pm on 7 March 2006, the latest expiry date of the offer. To date, a total of 77,530,766 common shares of Dofasco, representing 98.5% of all outstanding Dofasco common shares, have been deposited to Arcelor’s offer. Payment for all deposited Dofasco common shares, for which payment has not already been made, is expected to be made on or prior to 10 March 2006.