First Quarter 2007 Westlake Chemical Corporation Earnings Conference Call

First Quarter 2007 Westlake Chemical Corporation Earnings Conference Call

HOUSTON, April 18 /PRNewswire-FirstCall/ -- Westlake Chemical Corporation (NYSE: WLK) will release its 2007 first quarter earnings prior to the market opening on Thursday, May 3, 2007. 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) 688-0836, or (617) 614-4072 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 73021925.

The conference call will also be available via webcast at eventDetails&c=180248&eventID=1533849 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 10, 2007. 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 48629607.

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

CONTACT: Investors, Steve Bender, ,or Media, David Hansen, , both of Westlake Chemical Corporation, +1-713-960-9111

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