Steel Dynamics Announces Completion of Notes Offering
FORT WAYNE, INDIANA, October 12, 2007 — Steel Dynamics, Inc. (NASDAQ: STLD) announced today that it has consummated an unsecured note offering of $700 million of 7.375% Senior Notes due 2012 (the “Notes”). The net proceeds from the Notes will be used to finance the company’s planned acquisition of OmniSource Corporation and to repay a portion of the amounts outstanding under its senior secured revolving credit facility. In the event that the company does not consummate the acquisition, the net proceeds will be used to repay indebtedness outstanding under its senior secured credit facilities and for general corporate purposes.

These debt securities were offered in a transaction exempt from the registration requirements of the Securities Act of 1933 and have not been registered under the Securities Act of 1933, or any state securities laws, and may not be offered or sold in the United States, absent registration under, or an applicable exemption from, the registration requirements of the Securities Act of 1933 and applicable state laws.

This announcement is neither an offer to sell nor a solicitation of an offer to buy any debt securities, and shall not constitute an offer, solicitation or sale of any debt securities in any jurisdiction in which such offer, solicitation or sale would be unlawful.


Contact:
Fred Warner, Investor Relations Manager
(260) 969-3564 or fax (260) 969-3590
f.warner@steeldynamics.com

10/12/2007