<SUBMISSION>
<ACCESSION-NUMBER>0001104659-08-015101
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>3
<PERIOD>20080304
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20080304
<DATE-OF-FILING-DATE-CHANGE>20080304
<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>08664448
</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>a08-7257_18k.htm
<DESCRIPTION>8-K
<TEXT>

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<div style="border:none;border-top:double windowtext 6.0pt;padding:0in 0in 0in 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES
AND EXCHANGE COMMISSION</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON, DC&#160; 20549</font></b></p>

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

<div align="center" style="margin:0in 0in .0001pt;text-align:center;"><hr size="1" width="25%" noshade color="black" align="center"></div>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>

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

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)&nbsp;of the Securities Exchange
Act of 1934</font></b></p>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report
(date of earliest event reported): <b>March&nbsp;4, 2008 (March&nbsp;4,
2008)</b></font></p>

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

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">STEEL
DYNAMICS, INC.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of
registrant as specified in its charter)</font></p>

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

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

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Indiana</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
  <p align="center" style="margin:0in 0in .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:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
  <p align="center" style="margin:0in 0in .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="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
  jurisdiction<br>
  of incorporation)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
  <p align="center" style="margin:0in 0in .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:0in .7pt 0in .7pt;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer<br>
  Identification No.)</font></p>
  </td>
 </tr>
</table>

</div>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">6714
Pointe Inverness Way, Suite&nbsp;200, Fort Wayne, Indiana 46804</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of
principal executive offices) (Zip Code)</font></p>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registrant&#146;s
telephone number, including area code:<b>&#160; 260-459-3553</b></font></p>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Not
Applicable</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Former name or
former address, if changed since last report)</font></p>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><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;">Check the appropriate box
below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the
filing obligation of the registrant under any of the following provisions:</font></p>

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

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Written communications
  pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Soliciting material
  pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pre-commencement
  communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17
  CFR 240.14d-2(b))</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="3%" valign="top" style="padding:0in .7pt 0in .7pt;width:3.46%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
  </td>
  <td width="96%" valign="top" style="padding:0in .7pt 0in .7pt;width:96.54%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pre-commencement
  communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17
  CFR 240.13e-4(c))</font></p>
  </td>
 </tr>
</table>

</div>

<div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>

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

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
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<div>

<p style="margin:0in 0in .0001pt;"><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 .0001pt;"><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;">On March&nbsp;4, 2008,
Steel Dynamics,&nbsp;Inc., issued a press release titled &#147;Steel Dynamics
Announces Two-For-One Stock Split and Increased Cash Dividend.&#148;&#160; The full text of the press release is
furnished herewith and attached hereto as Exhibit&nbsp;99.1</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 .0001pt;"><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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="10%" valign="top" style="padding:0in .7pt 0in .7pt;width:10.1%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font></p>
  </td>
  <td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="85%" colspan="3" valign="top" style="padding:0in .7pt 0in .7pt;width:85.56%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibits.</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in .7pt 0in .7pt;width:10.1%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="13%" valign="top" style="padding:0in .7pt 0in .7pt;width:13.4%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:3.32%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="68%" valign="top" style="padding:0in .7pt 0in .7pt;width:68.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in .7pt 0in .7pt;width:10.1%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="16%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:16.72%;">
  <p style="margin:0in 0in .0001pt;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibit&nbsp;Number</font></u></p>
  </td>
  <td width="68%" valign="top" style="padding:0in .7pt 0in .7pt;width:68.84%;">
  <p style="margin:0in 0in .0001pt;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">Description</font></u></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in .7pt 0in .7pt;width:10.1%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="13%" valign="top" style="padding:0in .7pt 0in .7pt;width:13.4%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:3.32%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="68%" valign="top" style="padding:0in .7pt 0in .7pt;width:68.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A press release dated
  March&nbsp;4, 2008 titled &#147;Steel
  Dynamics Announces Two-For-One Stock Split and Increased Cash
  Dividend.&#148;</font></p>
  </td>
 </tr>
</table>

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

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

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
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<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><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;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><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;">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>

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

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="51%" valign="top" style="padding:0in .7pt 0in .7pt;width:51.1%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="48%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:48.9%;">
  <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>
  <td width="51%" valign="top" style="padding:0in .7pt 0in .7pt;width:51.1%;">
  <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 .7pt;width:5.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="43%" valign="top" style="padding:0in .7pt 0in .7pt;width:43.76%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="51%" valign="top" style="padding:0in .7pt 0in .7pt;width:51.1%;">
  <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 .7pt;width:5.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="43%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:43.76%;">
  <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>
  <td width="51%" valign="top" style="padding:0in .7pt 0in .7pt;width:51.1%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date: March&nbsp;4,
  2008</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="43%" valign="top" style="border:none;padding:0in .7pt 0in .7pt;width:43.76%;">
  <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>
  <td width="51%" valign="top" style="padding:0in .7pt 0in .7pt;width:51.1%;">
  <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 .7pt;width:5.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:</font></p>
  </td>
  <td width="43%" valign="top" style="padding:0in .7pt 0in .7pt;width:43.76%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Financial Officer</font></p>
  </td>
 </tr>
</table>

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

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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>

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<TYPE>EX-99.1
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit&nbsp;99.1</font></b></p>

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

<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman"><img width="168" height="34" src="g72571ksi001.gif"></font></p>

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

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="50%" valign="top" style="padding:0in .7pt 0in .7pt;width:50.0%;">
  <h3 style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:avoid;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">Press Release<br>
  </font></b><font size="3" style="font-size:12.0pt;">March&nbsp;4,
  2008</font></h3>
  </td>
  <td width="50%" valign="top" style="padding:0in .7pt 0in .7pt;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&nbsp;200<br>
  Fort Wayne, IN 46804-7932<br>
  260.459.3553 Phone<br>
  260.969.3590 Fax<br>
  <i>www.steeldynamics.com</i></font></p>
  </td>
 </tr>
</table>

<div style="border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

</div>

<p style="margin:0in 0in .0001pt;"><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 .0001pt;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Steel Dynamics Announces
Two-For-One Stock Split and Increased Cash Dividend</font></b></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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">FORT WAYNE, INDIANA, March&nbsp;4,
2008 &#151; Steel Dynamics,&nbsp;Inc. &#151; (NASDAQ-GS: STLD) today announced that its
board of directors has approved a two-for-one split of the company&#146;s common
stock, to be effected in the form of a 100% stock dividend, and also approved a
33 percent increase in the company&#146;s quarterly cash dividend.</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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;These actions by our
board are a clear indication of the confidence we have in our ability to
continue driving growth and creating value for our shareholders, by
capitalizing on many exciting opportunities that lie ahead,&#148; said Keith Busse,
Chairman and CEO of Steel Dynamics.</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 .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Two-For-One Stock Split</font></b></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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common shareholders of
record at the close of business on March&nbsp;19, 2008, will receive one
additional share of common stock for each share of common stock owned as of
that date.&#160; The company expects to
distribute the additional shares on or about March&nbsp;28, 2008.&#160; To accommodate the stock split, the board of
directors also authorized a two-for-one split of the company&#146;s total authorized
common shares, from 200 million to 400 million shares.&#160; The company&#146;s articles of incorporation will
be amended to reflect that change. Under Indiana law, no shareholder approval
is required to effect this transaction.</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 .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Cash Dividend</font></b></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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On a pre-split basis, the
company paid an annual cash dividend of $.60 per common share, or a quarterly
cash dividend of $.15 per common share, comprised of a $.10 regular dividend
and a $.05 special dividend during 2007.&#160;&#160;
Effective with the first quarter of 2008, the board of directors has authorized
the elimination of the distinction between &#147;regular&#148; and &#147;special&#148; dividends
and has also authorized a 33 percent increase in the company&#146;s quarterly cash
dividend, now resulting in a pre-split regular dividend of $.20 per common
share (or a post-split regular dividend of $.10 per common share), payable to
shareholders of record at the close of business on March&nbsp;31, 2008, with an
expected distribution date of April&nbsp;11, 2008.</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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">All future transactions
measured by reference to a specific number of common shares, such as
outstanding stock options, securities convertible into common shares, the
payment of dividends, shares authorized by existing share repurchase programs,
as well as the related option, conversion or dividend prices or amounts will be
adjusted to reflect the two-for-one split.</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 .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Forward-Looking
Statements</font></b></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 .0001pt;"><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,
future profitability and earnings, future dividend payments, 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 .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

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

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><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;">Factors that could cause
such predictive statements to turn out other than as anticipated or predicted
include, among others: 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 .0001pt;"><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;">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&nbsp;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, http://www.sec.gov , and on the Steel Dynamics
Web site, http://www.steeldynamics.com .</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 .0001pt;"><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. 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. 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="margin:0in 0in .0001pt;"><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;">&nbsp;</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 .0001pt 42.0pt;text-indent:-42.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Contact:&#160;
Fred Warner, Investor Relations Manager, (260) 969-3564</font></b><font size="2" style="font-size:10.0pt;"><br>
<b>f.warner@steeldynamics.com</b></font></p>

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

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

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