Westlake Chemical Declares Quarterly Dividend of 2.75 Cents Per Share

Feb 17, 2006 /PRNewswire-FirstCall via COMTEX News Network/ -- The board of directors of Westlake Chemical Corporation (NYSE: WLK) today declared a dividend of 2.75 cents per share, payable on March 10, 2006, to stockholders of record on February 28, 2006.

This is the sixth successive quarterly dividend that Westlake has declared since completing its initial public offering in August 2004.

Westlake Chemical Corporation is a manufacturer and supplier of petrochemicals, polymers and fabricated products with headquarters in Houston, Texas. The company's range of products includes: ethylene, polyethylene, styrene, propylene, caustic, VCM, PVC and PVC pipe, windows and fence. For more information, visit the company's Web site at http://www.westlakechemical.com .

David R. Hansen - Media Relations

M. Steven Bender - Investor Relations
both of Westlake Chemical Corporation (713) 960-9111

Westlake Chemical Corporation