NORTHFIELD, Ill., Feb. 14 /PRNewswire-FirstCall/ -- The Board of Directors of Stepan Company today declared a quarterly cash dividend on its common stock of $0.20 per share. The dividend is payable on March 15, 2006, to common stockholders of record on February 28, 2006. As previously announced, the Board of Directors declared a quarterly cash dividend on its five and one half (5.5%) percent convertible preferred stock at the quarterly rate of $0.34375 per share. Dividends are payable on February 28, 2006, to preferred stockholders of record on February 15, 2006. Stepan Company, headquartered in Northfield, Illinois, is a leading producer of specialty and intermediate chemicals used in household, industrial, personal care, agricultural, food and insulation-related products. The common and preferred stocks are traded on the New York and Chicago Stock Exchanges under the symbol SCL and SCLPR. First Call Analyst: FCMN Contact: apriest@hfgcg.com DATASOURCE: Stepan Company CONTACT: James E. Hurlbutt of Stepan Company, +1-847-446-7500

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