Westlake Chemical Declares Quarterly Dividend of 2.125 Cents Per Share

HOUSTON, Nov. 11 /PRNewswire-FirstCall/ -- The board of directors of Westlake Chemical Corporation (NYSE: WLK) declared today a dividend of 2.125 cents per share, payable on December 8, 2004, to shareholders of record on November 22, 2004.

This is the first dividend that Westlake has declared since completing its initial public offering in August 2004. Westlake intends to pay future quarterly dividends in this amount to holders of its common stock.

Westlake 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, vinyl intermediates, 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: David R. Hansen, Media Relations, or Graham McArthur, Investor Relations, both of Westlake Chemical Corporation, +1-713-960-9111
Web site: http://www.westlakechemical.com