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<title>Prepared By R.R. Donnelley Financial -- Form 8-K</title>
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<b>UNITED STATES </b></font></div>

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<b>SECURITIES AND EXCHANGE COMMISSION </b></font></div>

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<b>Washington, D.C. 20549 </b></font></div>

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<b>Form 8-K </b></font></div> <div><font Size="1">&nbsp;</font></div>

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<b>Current Report </b></font></div>

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<b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 </b></font></div>

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<b>Date of Report (Date of earliest event reported):&nbsp;&nbsp;07/11/2006 </b></font></div>




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<b>OLIN CORPORATION </b></font></div>

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<b>(Exact name of registrant as specified in its charter)</b></font></div>

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<b>Commission File Number:&nbsp;&nbsp;1-1070</b></font></div>

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<div Align="center"><font Face="times New Roman" Size="3" Color="#000000"><b>VA</b></font>
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<div Align="center"><font Face="times New Roman" Size="3" Color="#000000"><b>13-1872319</b></font>
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<b>(State or other jurisdiction of</b></font>
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<b>incorporation)</b></font>
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<b>Identification No.)</b></font>
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<b>190 Carondelet Plaza Suite 1530 Clayton, MO 63105</b></font></div>


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<b>(Address of principal executive offices, including zip code)</b></font>
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<b>314-480-1400 </b></font>
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<b>(Registrant&#146;s telephone number, including area code)</b></font>
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<b> </b></font>
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<b>(Former name or former address, if changed since last report) </b></font>
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<b>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:<BR><BR>
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<b>[&nbsp;&nbsp;]&nbsp;&nbsp;
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<BR><BR>

[&nbsp;&nbsp;]&nbsp;&nbsp;
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR><BR>


[&nbsp;&nbsp;]&nbsp;&nbsp;
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<BR><BR>


[&nbsp;&nbsp;]&nbsp;&nbsp;
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
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Information to be included in the report</b>
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<b>Item 8.01.&nbsp;&nbsp;&nbsp;&nbsp;Other Events</b></font>
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On June 26, 2006, Olin Corporation (the "Company") commenced an offer to exchange (the "Exchange Offer") a new series of notes due 2016 (the "New Notes") for up to $125 million of its outstanding 9.125% Senior Notes due 2011 (the "2011 Notes").<p>On July 11, 2006, the Company issued a press release announcing the early results of the Exchange Offer.  The Company announced that, as of 5:00 p.m., New York City time, on July 11, 2006, approximately $160 million aggregate principal amount of the 2011 Notes had been validly tendered for exchange.  These tendered notes may not be withdrawn.  Since more than $125 million of the 2011 Notes have been tendered, the New Notes will be issued on a pro rata basis as described in the Offering Memorandum dated June 26, 2006 and the related letter of transmittal.<p>The total exchange price for the outstanding notes will be calculated as of 2:00 p.m. New York City time, on July 12, 2006, as described in the Offering Memorandum dated June 26, 2006 and the related letter of transmittal.<p>The Exchange Offer is limited to holders of outstanding notes that have certified certain matters to the Company, including their status as "qualified institutional buyers" within the meaning of Rule 144A under the Securities Act of 1933.  The Exchange Offer is scheduled to expire at 5:00 p.m. New York City time, on July 25, 2006, unless extended.<p>The press release is filed as Exhibit 99.1 to this report and is hereby incorporated by reference herein.</font>
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<b>Item 9.01.&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits</b></font>
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Exhibit No.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibit</div><div align="left" style="text-indent:4%">99.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Press Release dated July 11, 2006.</font>
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<b>Signature(s) </b></font>
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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 hereunto
duly authorized. </font>
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	OLIN CORPORATION</font>
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	Date: July 11, 2006</font>
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	By:</font>
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	/s/&nbsp;&nbsp;&nbsp;&nbsp;George H. Pain</font>
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	George H. Pain</font>
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	<div><font Face="times New Roman" Size="2" Color="#000000">Vice President, General Counsel & Secretary</font>
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<b>Exhibit Index </b></font>
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	<b>Exhibit&nbsp;No.</b></font>
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	<b>Description</b></font>
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	EX-99.1</font>
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	Press Release dated July 11, 2006</font>
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{"company-data": {"conformed-name": "OLIN CORP", "cik": "0000074303", "assigned-sic": "3350", "irs-number": "131872319", "state-of-incorporation": "VA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-01070", "film-number": "06957112"}, "business-address": {"street1": "OLIN CORP", "street2": "190 CARONDELET PLAZA SUITE 1530", "city": "CLAYTON", "state": "MO", "zip": "63105", "phone": "3144801400"}, "mail-address": {"street1": "OLIN CORP", "street2": "190 CARONDELET PLAZA SUITE 1530", "city": "CLAYTON", "state": "MO", "zip": "63105"}, "former-company": {"former-conformed-name": "OLIN MATHIESON CHEMICAL CORP", "date-changed": "19691008"}}
Prepared By R.R. Donnelley Financial -- Form 8-K
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 8-K
Current Report
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):  07/11/2006
OLIN CORPORATION
(Exact name of registrant as specified in its charter)
Commission File Number:  1-1070
VA
13-1872319
(State or other jurisdiction of
(IRS Employer
incorporation)
Identification No.)
190 Carondelet Plaza Suite 1530 Clayton, MO 63105
(Address of principal executive offices, including zip code)
314-480-1400
(Registrant's telephone number, including area code)
(Former name or former address, if changed since last report)
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:
[  ]  
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[  ]  
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[  ]  
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
[  ]  
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Information to be included in the report
Item 8.01.    Other Events
On June 26, 2006, Olin Corporation (the "Company") commenced an offer to exchange (the "Exchange Offer") a new series of notes due 2016 (the "New Notes") for up to $125 million of its outstanding 9.125% Senior Notes due 2011 (the "2011 Notes").
On July 11, 2006, the Company issued a press release announcing the early results of the Exchange Offer.  The Company announced that, as of 5:00 p.m., New York City time, on July 11, 2006, approximately $160 million aggregate principal amount of the 2011 Notes had been validly tendered for exchange.  These tendered notes may not be withdrawn.  Since more than $125 million of the 2011 Notes have been tendered, the New Notes will be issued on a pro rata basis as described in the Offering Memorandum dated June 26, 2006 and the related letter of transmittal.
The total exchange price for the outstanding notes will be calculated as of 2:00 p.m. New York City time, on July 12, 2006, as described in the Offering Memorandum dated June 26, 2006 and the related letter of transmittal.
The Exchange Offer is limited to holders of outstanding notes that have certified certain matters to the Company, including their status as "qualified institutional buyers" within the meaning of Rule 144A under the Securities Act of 1933.  The Exchange Offer is scheduled to expire at 5:00 p.m. New York City time, on July 25, 2006, unless extended.
The press release is filed as Exhibit 99.1 to this report and is hereby incorporated by reference herein.
Item 9.01.    Financial Statements and Exhibits
Exhibit No.        Exhibit
99.1        Press Release dated July 11, 2006.
Signature(s)
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 hereunto
duly authorized.
OLIN CORPORATION
Date: July 11, 2006
By:
/s/    George H. Pain
George H. Pain
Vice President, General Counsel & Secretary
Exhibit Index
Exhibit No.
Description
EX-99.1
Press Release dated July 11, 2006