First Quarter 2009 Westlake Chemical Corporation Earnings Conference Call

HOUSTON, April 21 /PRNewswire-FirstCall/ -- Westlake Chemical Corporation (NYSE: WLK) will release its 2009 first quarter earnings prior to the market opening on Tuesday, May 5, 2009. 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 (866) 783-2142, or (857) 350-1601 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 32663837.

The conference call will also be available via webcast at =2178629 and the earnings release can be obtained via the company's Web page at,

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 May 12, 2009. 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 31153377.

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

    Investor Contact
    Steve Bender, 713-960-9111

    Media Contact
    David Hansen, 713-960-9111

SOURCE  Westlake Chemical Corporation

    -0-                           04/21/2009
    /CONTACT:  Investors, Steve Bender,, or Media, David
Hansen,, both of Westlake Chemical Corporation,
    /Web Site: /

CO:  Westlake Chemical Corporation

ST:  Texas

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