<SUBMISSION>
<ACCESSION-NUMBER>0001104659-07-044540
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>3
<PERIOD>20070529
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20070601
<DATE-OF-FILING-DATE-CHANGE>20070601
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>STEEL DYNAMICS INC
<CIK>0001022671
<ASSIGNED-SIC>3312
<IRS-NUMBER>351929476
<STATE-OF-INCORPORATION>IN
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-21719
<FILM-NUMBER>07892943
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>6714 POINTE INVERNESS WAY
<STREET2>SUITE 200
<CITY>FORT WAYNE
<STATE>IN
<ZIP>46804
<PHONE>2604593553
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>6714 POINTE INVERNESS WAY
<STREET2>SUITE 200
<CITY>FORT WAYNE
<STATE>IN
<ZIP>46804
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a07-15762_18k.htm
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<TEXT>
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<div style="font-family:Times New Roman;">
 <div style="border:none;border-top:double windowtext 6.0pt;padding:0pt 0pt 0pt 0pt;"> <p style="border:none;margin:0pt 0pt .0001pt;padding:0pt;"><a name="scotch"></a><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p> </div>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="font-size:10.0pt;margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES
AND EXCHANGE COMMISSION<br>
</font></b><b>WASHINGTON,
DC&#160; 20549</b></p>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">________________</font></p>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM 8-K</font></b></p>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="4" face="Times New Roman" style="font-size:14.0pt;font-weight:bold;">CURRENT
REPORT</font></b></p>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant
to Section 13 or 15(d) of the Securities Exchange Act of 1934</font></b></p>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report
(date of earliest event reported): <b>June 1, 2007 (May 29,
2007)</b></font></p>

<p align="center" style="font-size:10.0pt;margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">STEEL DYNAMICS,
INC.<br>
</font></b>(Exact name of registrant as specified in its charter)</p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="font-size:10.0pt;margin:0pt 0pt .0001pt;text-align:center;"><!-- SET mrlNoTableShading --><b>Indiana</b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">0-21719</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">35-1929476</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
  jurisdiction</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission File
  Number)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">of
  incorporation)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Identification
  No.)</font></p>
  </td>
 </tr>
</table>

</div>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="font-size:10.0pt;margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">6714
Pointe Inverness Way, Suite 200, Fort Wayne, Indiana 46804<br>
</font></b>(Address of principal executive offices) (Zip Code)</p>

<p align="center" style="margin:0pt 0pt 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registrant&#146;s
telephone number, including area code:&#160; <b>260-459-3553</b></font></p>

<p align="center" style="font-size:10.0pt;margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Not
Applicable<br>
</font></b>(Former name or former address, if changed since last report)</p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box
below if the Form 8-K filing is intended to simultaneously satisfy the filing
obligation of the registrant under any of the following provisions:</font></p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&nbsp;&nbsp;&nbsp;Written
communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&nbsp;&nbsp;&nbsp;Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&nbsp;&nbsp;&nbsp;Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))</p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&nbsp;&nbsp;&nbsp;Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))</p>

<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>


 <div style="border:none;border-bottom:double windowtext 6.0pt;padding:0pt 0pt 0pt 0pt;"> <p style="border:none;margin:0pt 0pt .0001pt;padding:0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p> </div>
</div><br><hr size="3" width="100%" noshade color="#010101" align="center">

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<div style="font-family:Times New Roman;">


<p style="margin:0in 0in 12.0pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in 12.0pt;page-break-after:avoid;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.01.&#160; Other Events</font></b></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On May 29, 2007, Steel
Dynamics, Inc. issued a press release titled &#147;Steel Dynamics Affirms Healthy
Earnings Outlook&#148; containing information about the company&#146;s expected results
of operations for the three-month and twelve month periods ending June 30, 2007
and December 31, 2007, respectively.&#160; The
full text of the press release is furnished herewith and attached hereto as
Exhibit 99.1.</font></p>

<p style="margin:0in 0in 12.0pt;page-break-after:avoid;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
9.01.&#160; Financial Statements and Exhibits</font></b></p>

<p style="margin:0in 0in 12.0pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">( c )&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Exhibits.</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;">
 <tr style="page-break-inside:avoid;">
  <td width="80" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in 0in;width:60.0pt;">
  <p style="font-size:8.0pt;font-weight:bold;line-height:8.0pt;margin:0in 0in .0001pt;text-align:center;"><!-- SET mrlHTMLTableCenter --><!-- SET mrlNoTableShading -->Exhibit
  Number</p>
  </td>
  <td width="33" valign="bottom" style="padding:0in .7pt 0in 0in;width:25.0pt;">
  <p style="font-weight:bold;line-height:8.0pt;margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></b></p>
  </td>
  <td width="504" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in 0in;width:378.2pt;">
  <p align="left" style="font-weight:bold;line-height:8.0pt;margin:0in 0in .0001pt;text-align:left;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;">Description</font></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="80" valign="top" style="border:none;padding:0in .7pt 0in 0in;width:60.0pt;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>
  </td>
  <td width="33" valign="top" style="padding:0in .7pt 0in 0in;width:25.0pt;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="504" valign="top" style="border:none;padding:0in .7pt 0in 0in;width:378.2pt;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A press release dated May 29, 2007 titled &#147;Steel
  Dynamics Affirms Healthy Earnings Outlook.&#148;</font></p>
  </td>
 </tr>
</table>

</div>

<p align="center" style="margin:0in 0in 12.0pt;page-break-after:avoid;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<p align="center" style="margin:0in 0in 12.0pt;page-break-after:avoid;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></b></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the
requirements of the Securities Exchange Act of 1934, the registrant has duly
caused this Report to be signed on its behalf by the undersigned hereto duly
authorized.</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="55%" valign="top" style="padding:0in .7pt 0in 0in;width:55.44%;">
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><!-- SET mrlNoTableShading --></p>
  </td>
  <td width="44%" colspan="2" valign="top" style="padding:0in .7pt 0in 0in;width:44.56%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">STEEL DYNAMICS, INC.</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="55%" valign="top" style="padding:0in .7pt 0in 0in;width:55.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in .7pt 0in 0in;width:5.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="39%" valign="top" style="padding:0in .7pt 0in 0in;width:39.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="55%" valign="top" style="padding:0in .7pt 0in 0in;width:55.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in .7pt 0in 0in;width:5.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="39%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in 0in;width:39.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Theresa E. Wagler</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="55%" valign="top" style="padding:0in .7pt 0in 0in;width:55.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date: June 1, 2007</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in .7pt 0in 0in;width:5.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="39%" valign="top" style="border:none;padding:0in .7pt 0in 0in;width:39.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Theresa E. Wagler</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="55%" valign="top" style="padding:0in .7pt 0in 0in;width:55.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in .7pt 0in 0in;width:5.44%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="39%" valign="top" style="padding:0in .7pt 0in 0in;width:39.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title: Chief Financial Officer</font></p>
  </td>
 </tr>
</table>

<p align="right" style="margin:0in 0in 12.0pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a07-15762_1ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
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<body lang="EN-US">

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<h4 align="right" style="font-weight:normal;margin:0in 0in 12.0pt;page-break-after:avoid;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit 99.1</font></b></h4>

<p align="right" style="margin:0in 0in 12.0pt;text-align:right;"><font size="2" face="Times New Roman"><img width="174" height="35" src="g157621kci001.jpg"></font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p style="font-size:10.0pt;margin:0in 0in .0001pt;"><!-- SET mrlNoTableShading --><b>Press Release</b></p>
  </td>
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">6714 Pointe Inverness
  Way, Suite 200</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">May 29, 2007</font></b></p>
  </td>
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Fort Wayne, IN
  46804-7932</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">260.459.3553 Phone</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">260.969.3590 Fax</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" valign="top" style="padding:0in .7pt 0in 0in;width:50.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">www.steeldynamics.com</font></i></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in 12.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<p style="margin:0in 0in 12.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Steel
Dynamics Affirms Healthy Earnings Outlook</font></b></p>

<p style="font-family:Times New Roman;font-size:10.0pt;margin:0in 0in 12.0pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">FORT
WAYNE, INDIANA</font></i>, May
29, 2007&#151; Steel Dynamics, Inc. (NASDAQ-GS: STLD) today announced that it
continues to expect to report second quarter earnings in the range of $0.95 to
$1.00 per diluted share, as initially stated in its April 16 news release. In
its April 16 guidance, the company noted that second quarter estimates take
into consideration, and have been reduced by, an estimated $.08 per share to
reflect second quarter costs related to the redemption of $300 million of 9&#189;%
Senior Unsecured Notes due 2009 that were replaced by $500 million of 6&#190;%
Senior Notes due 2015. These additional costs will be reflected in the company&#146;s
financial statements under selling, general and administrative expense,
interest expense, and other expenses.</p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;Shipping
volume and pricing of flat-rolled steels thus far in the second quarter have
been somewhat weaker than initially expected.&#160;
Therefore, earnings could end up at the low end of the range due to
continued softness in the flat-rolled steel marketplace,&#148; said Keith Busse,
Chairman and CEO of Steel Dynamics. &#147;However, while weakness in the flat-rolled
steel market has been prolonged due to a slower reduction in steel service
center inventories than originally expected, we currently are seeing a slight
strengthening and stabilization in pricing.&#160;
We expect this pricing trend to continue and to improve into the third
quarter.&#148; About half of SDI&#146;s shipments are flat-rolled products and half are
long products.</font></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;For
long products,&#148; Busse continued, &#147;market conditions for structural steels and
steel bars remain very strong and we are achieving excellent earnings in this
part of the business. We remain very positive about our near-term prospects and
continue to expect 2007 to be another record year for Steel Dynamics.&#148;</font></p>


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<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Forward-Looking Statements</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This
press release contains some predictive statements about future events,
including statements related to conditions in the steel marketplace, Steel
Dynamics&#146; revenue growth, costs of raw materials, future profitability and
earnings, and the operation of new or existing facilities. These statements are
intended to be made as &#147;forward-looking,&#148; subject to many risks and
uncertainties, 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.</font></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Factors
that could cause such predictive statements to turn out other than as
anticipated or predicted include, among others:&#160;
changes in economic conditions affecting steel consumption; increased
foreign imports; increased price competition; difficulties in integrating
acquired businesses; risks and uncertainties involving new products or new
technologies; changes in the availability or cost of steel scrap or substitute
materials; increases in energy costs; occurrence of unanticipated equipment
failures and plant outages; labor unrest; and the effect of the elements on
production or consumption.</font></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In
addition, we refer you to SDI&#146;s detailed explanation of these and other factors
and risks that may cause such predictive statements to turn out differently, as
set forth in our most recent Annual Report on Form 10-K and in other reports
which we from time to time file with the Securities and Exchange Commission,
available publicly on the SEC Web site, www.sec.gov, and on the Steel Dynamics
Web site, www.steeldynamics.com</font></p>

<p style="margin:0in 0in 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Forward-looking
or predictive statements we make are based on our knowledge of our businesses
and the environment in which they operate as of the date on which the
statements were made.&#160; Due to these risks
and uncertainties, as well as matters beyond our control which can affect
forward-looking statements, you are cautioned not to place undue reliance on
these predictive statements, which speak only as of the date of this press
release.&#160; We undertake no duty to update
or revise any forward-looking statement, whether as a result of new
information, future events or otherwise.</font></p>

<p style="font-weight:bold;margin:0in 0in .0001pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:normal;">Contact:&#160; Fred Warner, Investor Relations Manager,
(260) 969-3564 or fax (260) 969-3590</font></i></b></p>

<p style="margin:0in 0in 12.0pt;text-indent:.5in;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">f.warner@steeldynamics.com</font></i></b></p>



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