Westlake Chemical Corporation Directs Redemption of $250 Million of GO Zone Bonds

  Westlake Chemical Corporation Directs Redemption of $250 Million of GO Zone
  Bonds

Business Wire

HOUSTON -- September 19, 2017

Westlake Chemical Corporation (NYSE:WLK) announced today that it has directed
the Louisiana Local Governmental Environmental Facilities and Community
Development Authority (the “Authority”) to optionally redeem in full
$250,000,000 aggregate principal amount of the Authority’s Revenue Bonds
(Westlake Chemical Corporation Projects), Series 2007 (the “GO Zone Bonds”) on
November 1, 2017 at a redemption price of par, plus accrued and unpaid
interest, if any, to the redemption date. The GO Zone Bonds were issued by the
Authority in December 2007 under the Gulf Opportunity Zone Act of 2005 (GO
Zone Act) for the benefit of Westlake. In connection with the redemption of
the GO Zone Bonds, $250 million of Westlake’s 6¾ % Senior Notes due 2032 (the
“Senior Notes”) that were issued and are held by the trustee of the GO Zone
Bonds to evidence and secure Westlake’s payment obligations to the Authority
under the Loan Agreement relating to the GO Zone Bonds will be redeemed and
cancelled. Westlake expects to use borrowings under its revolving credit
facility and cash on hand to ultimately fund the redemption of the GO Zone
Bonds and the Senior Notes (collectively, the “Redemption”).

Since the GO Zone Bonds are held under the book-entry system, the notice of
redemption specifying the terms, conditions and procedures for the redemption
of the GO Zone Bonds will be delivered by the trustee, The Bank of New York
Mellon Trust Company, N.A., to the registered holders in accordance with the
procedures of The Depository Trust Company.

This press release is not an offer to sell or a solicitation of an offer to
buy any securities.

About Westlake Chemical Corporation

Westlake Chemical Corporation is an international manufacturer and supplier of
petrochemicals, polymers and building products with headquarters in Houston,
Texas. The company's range of products includes: ethylene, polyethylene,
styrene, propylene, chlor-alkali and derivative products, PVC suspension and
specialty resins, PVC Compounds, and PVC building products including siding,
pipe, fittings and specialty components, windows, fence, deck and film. For
more information, visit the company's web site at www.westlake.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of
the federal securities laws. These forward-looking statements include, but are
not limited to, statements regarding the Redemption and statements containing
the use of forward-looking words, such as "may," "will," "could," "would,"
"should," "project," "believe," "anticipate," "expect," "estimate,"
"continue," "potential," "plan," "forecast," "approximate," "intend,"
"upside," and the like, or the use of future tense. Statements contained in
this press release concerning the Redemption, together with other statements
that are not historical facts, are forward-looking statements that involve
certain risks and uncertainties. Such forward-looking statements are based
upon management's current expectations and include known and unknown risks,
uncertainties and other factors, many of which Westlake is unable to predict
or control, that may cause Westlake's actual results, performance or plans to
differ materially from any future results, performance or plans expressed or
implied by such forward-looking statements. These statements involve risks,
uncertainties and other factors detailed from time to time in Westlake's
filings with the Securities and Exchange Commission. Forward-looking
statements, like all statements in this press release, speak only as of the
date of this press release (unless another date is indicated). Westlake does
not undertake any obligation to publicly update any forward-looking
statements, whether as a result of new information, future events, or
otherwise.

View source version on businesswire.com:
http://www.businesswire.com/news/home/20170919006148/en/

Contact:

Westlake Chemical Corp.
Media Inquiries:
Ben Ederington, 713-960-9111
or
Investor Inquiries:
Steve Bender, 713-960-9111
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