HOUSTON, Oct. 19 /PRNewswire-FirstCall/ -- Westlake Chemical Corporation (NYSE: WLK) will release its 2006 third quarter earnings prior to the market opening on Thursday, November 2, 2006. The company will host a conference call at 11:00 a.m. Eastern Time (10:00 a.m. Central Time) on the same day to discuss the earnings release.

To access the conference call, dial (800) 299-9086, or (617) 786-2903 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 10251707.

    The conference call will also be available via webcast at
http://phx.corporate-ir.net/phoenix.zhtml?p=irol-
eventDetails&c=180248&eventID=1402866 and the earnings release can be obtained
via the company's Web page at,
http://www.westlakechemical.com/investors.html .

This call will be available for replay beginning an hour after the call has ended, and may be accessed until 1:00 p.m. Eastern Time on November 9, 2006. The replay can be accessed by calling the following numbers: Domestic callers should dial 1-888-286-8010 and international callers may access the replay at 617-801-6888. The access code at both numbers is 42524429.

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
    -0-                             10/19/2006
    /CONTACT:  Investor Contact: Steve Bender, +1-713-960-9111,
sbender@westlakechemical.com, or Media Contact: David Hansen, +1-713-960-9111,
dhansen@westlakechemical.com, both of Westlake Chemical Corporation/
    /Web site:  http://www.westlakechemical.com /
    (WLK)

CO:  Westlake Chemical Corporation
ST:  Texas
IN:  CHM
SU:  CCA

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