Westlake Chemical Declares Quarterly Dividend of 4 Cents per Share

HOUSTON, Nov. 10 /PRNewswire-FirstCall/ -- The board of directors of Westlake Chemical Corporation (NYSE: WLK) yesterday declared a dividend of 4 cents per share, payable on December 1, 2006, to stockholders of record on November 17, 2006.

This is the ninth 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 .

SOURCE Westlake Chemical Corporation

CONTACT: media relations, David R. Hansen, or investor relations, Steve Bender, both of Westlake Chemical Corporation, +1-713-960-9111