-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, Qw+59SegmUhkoVtdFc+fhCKT6f2Cw/ZuS3cc3swzBOKte0HOgqWuxZ0ObfU0dyR5 E+vuNM9JjXGY5Vn8I7RT/A== 0001140361-06-004648.txt : 20060328 0001140361-06-004648.hdr.sgml : 20060328 20060328170618 ACCESSION NUMBER: 0001140361-06-004648 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20060323 FILED AS OF DATE: 20060328 DATE AS OF CHANGE: 20060328 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: WESTLAKE CHEMICAL CORP CENTRAL INDEX KEY: 0001262823 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL ORGANIC CHEMICALS [2860] IRS NUMBER: 760346924 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD STREET 2: SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: GIBBONS JOHN D CENTRAL INDEX KEY: 0001043073 STANDARD INDUSTRIAL CLASSIFICATION: NATURAL GAS TRANSMISSION & DISTRIBUTION [4923] STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 06715748 BUSINESS ADDRESS: BUSINESS PHONE: 2103702000 MAIL ADDRESS: STREET 1: P.O. BOX 500 CITY: SAN ANTONIO STATE: TX ZIP: 78292-0500 3 1 doc1.xml FORM 3 X0202 3 2006-03-23 1 0001262823 WESTLAKE CHEMICAL CORP WLK 0001043073 GIBBONS JOHN D 2801 POST OAK BLVD. SUITE 600 HOUSTON TX 77056 0 1 0 0 Senior Vice President & CFO John D. Gibbons, by Andrew Ralston, POA 2006-03-28 EX-24.1 2 poa1.htm POWER OF ATTORNEY Unassociated Document

POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and appoints each of the following: David R. Hansen, Stephen Wallace and Andrew Ralston signing singly, the undersigned’s true and lawful attorney-in-fact to:
 
  (1) execute for and on behalf of the undersigned, in the undersigned’s capacity as an officer and/or director of Westlake Chemical Corporation (the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder, and any other forms or reports the undersigned may be required to file in connection with the undersigned’s ownership, acquisition, or disposition of securities of the Company;
 
  (2) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, or other form or report, including without limitation, all forms or reports necessary to obtain EDGAR Identification Numbers, and timely file such form or report with the United States Securities and Exchange Commission and any stock exchange or similar authority; and
 
  (3) take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.
 
The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming that all such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or case to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not
 
 
 
 
 
 
assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.
 
This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.
 
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 27th day of  March, 2006.
     
  /s/ John D. Gibbons
 
  John D. Gibbons
  Chief Financial Officer
 
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