Westlake Chemical Expands and Extends Revolving Credit Facility

Westlake Chemical Expands and Extends Revolving Credit Facility

HOUSTON, Sept. 9 /PRNewswire-FirstCall/ -- Westlake Chemical Corporation (NYSE: WLK) announced today that it has completed an amendment to increase the company's revolving credit facility from $300 million to $400 million and extended its maturity to 2013.

Albert Chao, Westlake Chemical's Chief Executive Officer and President, stated, "We are pleased to have secured increased commitments from our lenders for this $400 million facility. Completing this transaction increases our financial flexibility and provides the financial liquidity for our continued growth."

Westlake Chemical Corporation (WLK)

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.

The statements in this release relating to the credit facility, as well as any other matters that are not historical facts, are forward-looking statements that are subject to risks and uncertainties. Actual results could differ materially. For more detailed information about factors that could cause actual results to differ materially, please refer to Westlake's Annual Report on Form 10-K for the year ended December 31, 2007, which was filed in February 2008.

SOURCE  Westlake Chemical Corporation
    -0-                             09/09/2008
    /CONTACT:  Media Relations, David R. Hansen, or Investor Relations, Steven
Bender, both of Westlake Chemical Corporation, +1-713-960-9111/
    /Web site:  http://www.westlake.com /
    (WLK)

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

JR-SB
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6045 09/09/2008 06:00 EDT http://www.prnewswire.com

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