Exhibit 99.1

Press Release	7575 West Jefferson Blvd.
March 11, 2010	Fort Wayne, IN 46804
	260.969.3500 Phone
	260.969.3590 Fax

Steel Dynamics Announces Offering of Notes

FORT WAYNE, INDIANA, March 11, 2010 — Steel Dynamics, Inc. (NASDAQ-GS:STLD) announced today that it plans to sell approximately $300 million in aggregate principal amount of debt securities in a transaction exempt from the registration requirements of the Securities Act of 1933, subject to market and other conditions.  Steel Dynamics intends to use the net proceeds from the sale of these debt securities to repay amounts outstanding under its senior secured revolving credit facility and for general corporate purposes, including, without limitation, for debt repayment, capital expenditures, working capital and acquisitions.

This announcement is neither an offer to sell nor a solicitation of an offer to buy these securities.  The securities will not be registered under the Securities Act of 1933, as amended, or any state securities laws, and unless so registered, may not be offered or sold in the United States except pursuant to an exemption from the registration requirements of the Securities Act of 1933 and applicable state securities laws.

Forward Looking Statements

This press release contains predictive statements about future events. These statements are intended to be made as “forward-looking,” subject to many risks and uncertainties, including conditions in the financial markets, within the safe harbor protections of the Private Securities Litigation Reform Act of 1995. Such predictive statements are not guarantees of future performance, and actual results could differ materially from our current expectations.

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