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 Company's press release dated March 2, 2009, announcing that it is lifting the force majeure declared on December 31, 2008 for product shipments from the Henderson, Nevada, Santa Fe Springs, California and Tracy, California facilities. The Company said that normal deliveries of chlorine, caustic soda, hydrochloric acid, hydrogen and bleach from those facilities are expected to resume immediately.

CAUTIONARY STATEMENT ABOUT FORWARD-LOOKING STATEMENTS:

This report includes forward-looking statements. These statements relate to analyses and other information based on management's beliefs, certain assumptions made by management, forecasts of future results and current expectations, estimates and projections about our operations and the markets and economy in which we and our various segments operate. The statements contained in this report that are not statements of historical fact may include forward-looking statements that involve a number of risks and uncertainties, including future demand for chlorine and caustic soda, and the timing of resolution of various issues with our facilities.

We have used the words "anticipate," "expect," and variations of such words and similar expressions in this report to identify such forward-looking statements. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions, which are difficult to predict and many of which are beyond our control. We undertake no obligation to update publicly any forward-looking statements, whether as a result of future events, new information or otherwise.

You should consider these forward-looking statements in light of risk factors discussed above and those in our annual report on Form 10-K for the year ended December 31, 2008, and subsequent periodic filings made with the Securities and Exchange Commission. In addition, other risks and uncertainties not presently known to us or that we consider immaterial could affect the accuracy of our forward-looking statements.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description of Exhibit

99.1 Press Release dated March 2, 2009.

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