Fourth Quarter 2005 Westlake Chemical Corporation Earnings Conference Call

HOUSTON, Feb. 1 /PRNewswire-FirstCall/ -- Westlake Chemical Corporation (NYSE: WLK) will release its 2005 fourth quarter earnings prior to the market opening on Tuesday, Feb. 21, 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 (866) 277-1184, or (617) 597-5360 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 43763752.

The conference call will also be available via webcast at:
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 11:59 p.m. Eastern Time on February 28th. 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 21963244.

Westlake 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, vinyl intermediates, PVC and PVC pipe, windows and fence. For more information, visit the company's Web site at .

Westlake Chemical Corporation

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