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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Registration No.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">UNITED STATES</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Washington, D.C. 20549</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">FORM S-8</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">OLIN CORPORATION</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">(Exact name of registrant as specified in its charter)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(State or other jurisdiction of incorporation or organization)</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(I.R.S. Employer Identification No.)</font></div>
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<td align="left" valign="top" width="51%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></td>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">190 Carondelet Plaza, Suite 1530, Clayton, MO</font></font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">63105</font></font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(Address of Principal Executive Offices)</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(Zip Code)</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">OLIN CORPORATION CONTRIBUTING EMPLOYEE OWNERSHIP PLAN</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">G. H. Pain</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Senior Vice President, General Counsel and Secretary</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Olin Corporation</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">190 Carondelet Plaza, Suite 1530</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Clayton, Missouri&#160;&#160;63105</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">314-480-1400</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">(Telephone number, including area code, of agent for service)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a smaller reporting company.&#160;&#160;See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 81pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Large accelerated filer</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 81pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Non-accelerated filer</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Smaller reporting company</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">CALCULATION OF REGISTRATION FEE</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Title of securities to be registered</font></div>
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<td align="left" valign="top" width="13%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Amount to be registered</font></div>
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<td align="left" valign="top" width="23%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Proposed maximum offering price per share</font><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="FONT-SIZE: 10pt"><font style="FONT-SIZE: 10pt"><font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(2)</font></font></font></font></div>
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<td align="left" valign="top" width="24%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Proposed maximum aggregate offering price<font style="FONT-SIZE: 10pt"><font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(2)</font></font></font></div>
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<td align="left" valign="top" width="13%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Amount of registration fee</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Common Stock (par value $1.00 per share)</font></div>
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<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></td>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">3,000,000<font style="FONT-SIZE: 10pt"><font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(1)</font></font></font></div>

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<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></td>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">$18.62</font></div>
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<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></td>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">$55,860,000</font></div>

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<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></td>
<td align="left" valign="top" width="13%">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">$6,486.00</font></div>

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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">(1)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;In addition, pursuant to Rule 416(c) under the Securities Act of 1933, this Registration Statement shall also cover an indeterminate amount of interests to be offered or sold pursuant to the Plan, as well as any additional shares of Common Stock which become issuable under the Plan by reason of any stock dividend or stock split or as the result of other anti-dilution provisions in the Plan.</font></div>

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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">(2)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Estimated solely for purposes of calculating the amount of the registration fee, pursuant to Rule 457(c) and (h), based upon the average of the high and low prices reported for the Common Stock on August 18, 2011, on the New York Stock Exchange consolidated reporting system.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">EXPLANATORY NOTE</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>Olin Corporation (&#8220;Company&#8221;) has prepared this Registration Statement (the &#8220;Registration Statement&#8221;) in accordance with the requirements of Form S-8 under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;), to register an additional 3,000,000 shares of Common Stock, which will be issued in accordance with our Contributing Employee Ownership Plan (&#8220;Plan&#8221;).</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">INCORPORATION OF CONTENTS OF REGISTRATION</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>The Company filed a registration statement on Form S-8 (File No. 333-153183) with the Securities and Exchange Commission (&#8220;SEC&#8221;) covering the registration of 3,000,000 shares for issuance under the Plan.&#160;&#160;Pursuant to General Instruction E of Form S-8 and Rule 429, this Registration Statement is being filed to register an additional 3,000,000 shares pursuant to the Plan.&#160;&#160;The contents of the prior registration statement (File No. 333-153183) are incorporated herein by reference.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Item 3.&#160;&#160;<font style="DISPLAY: inline; TEXT-DECORATION: underline">INCORPORATION OF DOCUMENTS BY REFERENCE</font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>We incorporate by reference the documents listed below which were filed with the SEC under the Securities Exchange Act of 1934:</font></div>

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<div><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">(a)&#160;&#160;</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Our Annual Report on Form 10-K for the fiscal year ended December 31, 2010;</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">The Plan&#8217;s Annual Report on Form 11-K for the fiscal year ended December 31, 2010;</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Our Quarterly Reports on Form 10-Q for the fiscal quarters ended March 31, 2011 and June 30, 2011;</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Our Current Reports on Form 8-K or Form 8-K/A filed on January 31, 2011, March 3, 2011, May 3, 2011, May 5, 2011, and July 22, 2011; and</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">The descriptions of our Common Stock contained in Amendment No. 3 to Olin&#8217;s Registration Statement on Form S-4 filed on August 14, 2002 (Registration No. 333-88990).</font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">reports filed under Section 13(a) and (c) of the Securities Exchange Act of 1934;</font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">definitive proxy or information statements filed under Section 14 of the Securities Exchange Act of 1934 in connection with any subsequent stockholders&#8217; meeting; and</font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">any reports filed under Section 15(d) of the Securities Exchange Act of 1934.</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Item 8.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="DISPLAY: inline; TEXT-DECORATION: underline">EXHIBITS</font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>The Exhibits to this Registration Statement are listed in the Exhibit Index to this Registration Statement, which Index is incorporated herein by reference.</font></div>

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<div style="TEXT-INDENT: 36pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; TEXT-DECORATION: underline">Registrant.</font>&#160;&#160;Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Clayton, State of Missouri, on August 22, 2011.</font></div>

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<div><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;OLIN CORPORATION</font></div>

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<div><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;By:<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;</font><font style="TEXT-DECORATION: underline">/s/ G. H. Pain&#160;&#160;&#160;<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Chairman, President, Chief Executive Officer and Director </font><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(Principal Executive Officer)</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">John E. Fischer</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Senior Vice President and Chief Financial Officer (Principal Financial Officer)</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Todd A. Slater</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Vice President, Finance and Controller (Principal Accounting Officer)</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Donald W. Bogus<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ C. Robert Bunch<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">C. Robert Bunch</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Randall W. Larrimore<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font></font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Randall W. Larrimore</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ John M.B. O&#8217;Connor<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160; </font></font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">John M.B. O&#8217;Connor</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Richard M. Rompala<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160; </font></font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Richard M. Rompala</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Philip J. Schulz<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;&#160;&#160; </font></font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Philip J. Schulz</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; TEXT-DECORATION: underline"><font style="DISPLAY: inline">/s/ Vincent J. Smith<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Vincent J. Smith</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Director</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">August 22, 2011</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; TEXT-DECORATION: underline">Plan.</font>&#160;&#160;Pursuant to the requirements of the Securities Act of 1933, the Olin Corporation Contributing Employee Ownership Plan has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Clayton, State of Missouri, on this 22nd day of August, 2011.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font>OLIN CORPORATION CONTRIBUTING</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font>By the Pension and CEOP Administrative Committee</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font><font style="DISPLAY: inline; TEXT-DECORATION: underline">/s/ Dolores J. Ennico<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;&#160; </font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font><font style="DISPLAY: inline; TEXT-DECORATION: underline">/s/ Sharon E. Doughty<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160; </font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font>Sharon E. Doughty</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font><font style="DISPLAY: inline; TEXT-DECORATION: underline">/s/ Denise C. Lockwood<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font></font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 180pt"></font><font style="DISPLAY: inline; TEXT-DECORATION: underline">/s/ Mary Ann T. DeRosa<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font></font></font></div>

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<div style="TEXT-INDENT: 36pt; DISPLAY: block; MARGIN-LEFT: 144pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">EXHIBIT INDEX</font></div>

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ceopolins8aug2011.htm
Registration No.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
OLIN CORPORATION
(Exact name of registrant as specified in its charter)
Virginia
13-1872319
(State or other jurisdiction of incorporation or organization)
(I.R.S. Employer Identification No.)
190 Carondelet Plaza, Suite 1530, Clayton, MO
63105
(Address of Principal Executive Offices)
(Zip Code)
OLIN CORPORATION CONTRIBUTING EMPLOYEE OWNERSHIP PLAN
(Full title of the plan)
G. H. Pain
Senior Vice President, General Counsel and Secretary
Olin Corporation
190 Carondelet Plaza, Suite 1530
Clayton, Missouri  63105
(Name and address of agent for service)
314-480-1400
(Telephone number, including area code, of agent for service)
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a smaller reporting company.  See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
[x]
Accelerated filer
[  ]
Non-accelerated filer
[  ]
Smaller reporting company
[  ]
CALCULATION OF REGISTRATION FEE
Title of securities to be registered
Amount to be registered
Proposed maximum offering price per share
(2)
Proposed maximum aggregate offering price
(2)
Amount of registration fee
Common Stock (par value $1.00 per share)
3,000,000
(1)
$18.62
$55,860,000
$6,486.00
(1)           In addition, pursuant to Rule 416(c) under the Securities Act of 1933, this Registration Statement shall also cover an indeterminate amount of interests to be offered or sold pursuant to the Plan, as well as any additional shares of Common Stock which become issuable under the Plan by reason of any stock dividend or stock split or as the result of other anti-dilution provisions in the Plan.
(2)           Estimated solely for purposes of calculating the amount of the registration fee, pursuant to Rule 457(c) and (h), based upon the average of the high and low prices reported for the Common Stock on August 18, 2011, on the New York Stock Exchange consolidated reporting system.
Part II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
EXPLANATORY NOTE
Olin Corporation ("Company") has prepared this Registration Statement (the "Registration Statement") in accordance with the requirements of Form S-8 under the Securities Act of 1933, as amended (the "Securities Act"), to register an additional 3,000,000 shares of Common Stock, which will be issued in accordance with our Contributing Employee Ownership Plan ("Plan").
INCORPORATION OF CONTENTS OF REGISTRATION
STATEMENT BY REFERENCE
The Company filed a registration statement on Form S-8 (File No. 333-153183) with the Securities and Exchange Commission ("SEC") covering the registration of 3,000,000 shares for issuance under the Plan.  Pursuant to General Instruction E of Form S-8 and Rule 429, this Registration Statement is being filed to register an additional 3,000,000 shares pursuant to the Plan.  The contents of the prior registration statement (File No. 333-153183) are incorporated herein by reference.
Item 3.
INCORPORATION OF DOCUMENTS BY REFERENCE
We incorporate by reference the documents listed below which were filed with the SEC under the Securities Exchange Act of 1934:
(a)
Our Annual Report on Form 10-K for the fiscal year ended December 31, 2010;
(b)
The Plan's Annual Report on Form 11-K for the fiscal year ended December 31, 2010;
(c)
Our Quarterly Reports on Form 10-Q for the fiscal quarters ended March 31, 2011 and June 30, 2011;
(d)
Our Current Reports on Form 8-K or Form 8-K/A filed on January 31, 2011, March 3, 2011, May 3, 2011, May 5, 2011, and July 22, 2011; and
(e)
The descriptions of our Common Stock contained in Amendment No. 3 to Olin's Registration Statement on Form S-4 filed on August 14, 2002 (Registration No. 333-88990).
We also incorporate by reference each of the following documents that we will file with the SEC after the date of this registration statement until this offering is completed, which documents shall be deemed to be incorporated herein from the date of filing of such documents:
─
reports filed under Section 13(a) and (c) of the Securities Exchange Act of 1934;
─
definitive proxy or information statements filed under Section 14 of the Securities Exchange Act of 1934 in connection with any subsequent stockholders' meeting; and
─
any reports filed under Section 15(d) of the Securities Exchange Act of 1934.
Item 8.
EXHIBITS
The Exhibits to this Registration Statement are listed in the Exhibit Index to this Registration Statement, which Index is incorporated herein by reference.
SIGNATURES
Registrant.
Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Clayton, State of Missouri, on August 22, 2011.
OLIN CORPORATION
By:
/s/ G. H. Pain
G. H. Pain, Senior Vice President,
General Counsel and Secretary
POWER OF ATTORNEY
We the undersigned officers and directors of Olin Corporation, hereby severally constitute and appoint Joseph D. Rupp, George H. Pain, and John E. Fischer, and each of them singly, our true and lawful attorneys-in-fact, with full power to them in any and all capacities, to sign any and all amendments to this Registration Statement on Form S-8 (including any post-effective amendments thereto), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact may do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated.
Signature
Title
Date
/s/ Joseph D. Rupp
Joseph D. Rupp
Chairman, President, Chief Executive Officer and Director
(Principal Executive Officer)
August 22, 2011
/s/ John E. Fischer
John E. Fischer
Senior Vice President and Chief Financial Officer (Principal Financial Officer)
August 22, 2011
/s/ Todd A. Slater
Todd A. Slater
Vice President, Finance and Controller (Principal Accounting Officer)
August 22, 2011
/s/ Gray G. Benoist
Gray G. Benoist
Director
August 22, 2011
/s/ Donald W. Bogus
Donald W. Bogus
Director
August 22, 2011
/s/ C. Robert Bunch
C. Robert Bunch
Director
August 22, 2011
/s/ Randall W. Larrimore
Randall W. Larrimore
Director
August 22, 2011
/s/ John M.B. O'Connor
John M.B. O'Connor
Director
August 22, 2011
/s/ Richard M. Rompala
Richard M. Rompala
Director
August 22, 2011
/s/ Philip J. Schulz
Philip J. Schulz
Director
August 22, 2011
/s/ Vincent J. Smith
Vincent J. Smith
Director
August 22, 2011
Plan.
Pursuant to the requirements of the Securities Act of 1933, the Olin Corporation Contributing Employee Ownership Plan has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Clayton, State of Missouri, on this 22nd day of August, 2011.
OLIN CORPORATION CONTRIBUTING
EMPLOYEE OWNERSHIP PLAN
By the Pension and CEOP Administrative Committee
/s/ Dolores J. Ennico
Dolores J. Ennico
/s/ Sharon E. Doughty
Sharon E. Doughty
/s/ Denise C. Lockwood
Denise C. Lockwood
/s/ Mary Ann T. DeRosa
Mary Ann T. DeRosa
EXHIBIT INDEX
EXHIBIT                           DESCRIPTION
5
Opinion of Counsel
23.1
Consent of KPMG LLP
23.2
Consent of Ernst & Young LLP
23.3
Consent of EisnerAmper LLP
23.4
Consent of Amper, Politziner & Mattia, LLP
23.5
Consent of Counsel (contained in Exhibit 5)
24
Power of Attorney (included on signature page)
99
Olin Corporation Contributing Employee Ownership Plan Amended and Restated effective as of December 31, 2009 (incorporated by reference from Exhibit 10(dd) to Olin's Form 10-K for the year ended December 31, 2009)