September 4, 2008

Olin to Present at KeyBanc Capital Markets’ Basic Materials & Packaging Conference, Credit Suisse Chemical and Ag Science Conference, and Oppenheimer Industrials Conference

Olin Corporation's (NYSE:OLN) senior management will make presentations at the KeyBanc Capital Markets' Basic Materials & Packaging Conference on Thursday, September 11, 2008 at noon Eastern Time in Boston, MA; the Credit Suisse Chemical and Ag Science Conference on Thursday, September 18, at 11:20 a.m. Eastern Time in New York, NY; and the Oppenheimer Industrials Conference on Thursday, October 2, 2008 at 8:00 a.m. Eastern Time in New York, NY.

Copies of the presentation slides for all three conferences will be available the evening prior to each presentation on Olin's web site in the Investors section under Investor Presentations.

Olin Corporation is a manufacturer concentrated in two business segments: Chlor Alkali Products and Winchester. Chlor Alkali Products manufactures chlorine and caustic soda, sodium hydrosulfite, hydrochloric acid, hydrogen, sodium chlorate, potassium hydroxide and bleach products. Winchester products include sporting ammunition, reloading components, small caliber military ammunition and components, and industrial cartridges. 2008-17