-- 22.5 cents per share dividend declared payable September 25, 2013

HOUSTON, Aug. 26, 2013 /PRNewswire/ -- The board of directors of Westlake Chemical Corporation (NYSE: WLK) declared on Friday, August 23, 2013, a dividend of 22.5 cents per share, an increase of 20% from the 18.75 cents per share paid in the second quarter of 2013.  The increased dividend will be payable on September 25, 2013, to stockholders of record on September 10, 2013. 

This is the 36th successive quarterly dividend that Westlake has declared since completing its initial public offering in August 2004.

Westlake Chemical Corporation (WLK)

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

SOURCE Westlake Chemical Corporation

Media Relations, David R. Hansen, +1-713-960-9111, or Investor Relations, Steve Bender, +1-713-960-9111