HOUSTON, Feb. 4 /PRNewswire-FirstCall/ -- Westlake Chemical Corporation (NYSE: WLK) will release its 2008 fourth quarter earnings prior to the market opening on Wednesday, February 18, 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) 383-8119, or (617) 597-5344 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 74585131.

The conference call will also be available via webcast at, (Due to the length of the url, please copy and paste into your browser): http://phx.corporate-ir.net/phoenix.zhtml?p=irol- eventDetails&c=180248&eventID=2083826 and the earnings release can be obtained via the company's Web page at, (Due to the length of the url, please copy and paste into your browser) http://www.westlake.com/fw/main/IR_Home_Page- 123.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 February 25, 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 21627930.

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.westlake.com.

    Investor Contact
    Steve Bender,
    713-960-9111
    sbender@westlake.com

    Media Contact
    David Hansen,
    713-960-9111
    dhansen@westlake.com

SOURCE  Westlake Chemical Corporation

    -0-                             02/04/2009
    /CONTACT: Investors, Steve Bender, +1-713-960-9111, sbender@westlake.com,
or Media, David Hansen, +1-713-960-9111, dhansen@westlake.com, both for
Westlake Chemical Corporation/
    /Web site: http://www.westlake.com /
    (WLK)

CO:  Westlake Chemical Corporation

ST:  Texas
IN:  CHM
SU:  CCA

TI-MI
-- CLW028 --
4843 02/04/2009 08:00 EST http://www.prnewswire.com