Item 7.01. Regulation FD Disclosure.

In accordance with General Instruction B.2. of Form 8-K, the following information shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. Olin disclaims any intention or obligation to update or revise this information.

Attached as Exhibit 99.1 and incorporated herein by reference, is a copy of the registrant's press release dated March 20, 2009 announcing that senior management will be available for one-on-one sessions and will make a presentation at the Sidoti & Company, LLC Emerging Growth Institutional Investor Forum in New York City on March 25, 2009 at 11:00 am Eastern Time, and will be available for one-on-one sessions at the BB&T Capital Markets Manufacturing & Materials Conference in New York City on April 1, 2009.

Copies of the presentation slides for the conference will be available the evening prior to the presentation on Olin's web site www.olin.com in the Investors section under Investor Presentations.

Item 9.01. Financial Statements and Exhibits.

Exhibit No. Exhibit
99.1 Press Release dated March 20, 2009

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