On July 18, 2012, Olin Corporation, a Virginia corporation ("Olin"), issued a press release announcing that it had entered into a Stock Purchase Agreement, dated as of July 17, 2012 (the "Stock Purchase Agreement"), among Olin, K. A. Steel Chemicals Inc., a Delaware corporation ("K. A. Steel"), the stockholders of K. A. Steel and Robert F. Steel, as the sellers' representative, pursuant to which Olin will purchase all of the outstanding shares of common stock of K. A. Steel for $328 million in cash (subject to certain adjustments set forth in the Stock Purchase Agreement). The closing of the acquisition is conditioned upon regulatory approval and other customary closing conditions and is expected to occur by the end of the third quarter. A copy of the Stock Purchase Agreement is attached hereto as Exhibit 2.1 and is incorporated herein by reference.

Attached as Exhibit 99.1 and incorporated herein by reference is a copy of the registrant's press release dated July 18, 2012 announcing the execution of the Stock Purchase Agreement.

(d) Exhibits. The following Exhibits are filed as part of this Report on Form 8-K:

Exhibit No.                         Description of Exhibit

    2.1     Stock Purchase Agreement, dated as of July 17, 2012, by and among Olin
            Corporation, K. A. Steel Chemicals Inc., the stockholders of K. A.
            Steel Chemicals Inc. and Robert F. Steel, as the sellers'
            representative.

   99.1     Press Release dated July 18, 2012.