Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Chao Albert
   2. Issuer Name and Ticker or Trading Symbol
WESTLAKE CHEMICAL CORP [WLK] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President & CEO
(Last)
(First)
(Middle)
2801 POST OAK BLVD.		 3. Date of Earliest Transaction (Month/Day/Year)
11/26/2012
(Street)

HOUSTON, TX 77056		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/26/2012   M   35,400 A $ 14.5 175,275 D  
Common Stock 11/26/2012   M   8,547 A $ 27.22 183,822 D  
Common Stock 11/26/2012   M   4,514 A $ 36.1 188,336 D  
Common Stock 11/26/2012   M   42,579 A $ 14.235 230,915 D  
Common Stock 11/26/2012   S   30,699 D $ 75 200,216 D  
Common Stock 11/26/2012   S   879 D $ 75.02 199,337 D  
Common Stock 11/26/2012   S   21 D $ 75.03 199,316 D  
Common Stock 11/26/2012   S   100 D $ 75.1 199,216 D  
Common Stock 11/26/2012   S   3,800 D $ 75.3 195,416 D  
Common Stock 11/26/2012   S   100 D $ 75.35 195,316 D  
Common Stock 11/26/2012   S   100 D $ 75.4 195,216 D  
Common Stock 11/26/2012   S   900 D $ 75.41 194,316 D  
Common Stock 11/26/2012   S   100 D $ 75.43 194,216 D  
Common Stock 11/26/2012   S   2,000 D $ 75.5 192,216 D  
Common Stock 11/26/2012   S   600 D $ 75.63 191,616 D  
Common Stock 11/26/2012   S   1,160 D $ 75.6301 190,456 D  
Common Stock 11/26/2012   S   100 D $ 75.66 190,356 D  
Common Stock 11/26/2012   S   210 D $ 75.6601 190,146 D  
Common Stock 11/26/2012   S   100 D $ 75.72 190,046 D  
Common Stock 11/26/2012   S   300 D $ 75.73 189,746 D  
Common Stock 11/26/2012   S   400 D $ 75.79 189,346 D  
Common Stock 11/26/2012   S   30 D $ 75.795 189,316 D  
Common Stock 11/26/2012   S   100 D $ 75.825 189,216 D  
Common Stock 11/26/2012   S   4,314 D $ 75.87 184,902 D  
Common Stock 11/26/2012   S   300 D $ 75.88 184,602 D  
Common Stock 11/26/2012   S   100 D $ 75.89 184,502 D  
Common Stock 11/26/2012   S   200 D $ 75.92 184,302 D  
Common Stock               20,000 I By Mother (1)
Common Stock               115,842 I By Brother James Chao (2)
Common Stock               46,005,277 I TTWF LP & TTWFGP LLC Trusts

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Option (right to buy) $ 14.5 11/26/2012   M   35,400   08/16/2007 08/16/2014 Common Stock 35,400 $ 0 0 D  
Employee Option (right to buy) $ 27.22 11/26/2012   M   8,547   08/31/2009 08/31/2015 Common Stock 8,547 $ 0 0 D  
Employee Option (right to buy) $ 36.1 11/26/2012   M   4,514   03/15/2010 03/15/2016 Common Stock 4,514 $ 0 0 D  
Employee Option (right to buy) $ 14.235 11/26/2012   M   42,579   02/13/2012 02/13/2019 Common Stock 42,579 $ 0 77,946 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Chao Albert
2801 POST OAK BLVD.
HOUSTON, TX 77056		   X   X   President & CEO  

Signatures

 Albert Chao by Richard C. Kroger POA   11/28/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
(2) The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
 
Remarks:
46,005,277 shares are held through TTWF LP, a Delaware limited partnership. Two trusts for the benefit of members of the Chao family, including the reporting person, are the managers of TTWFGP LLC, a Delaware limited liability company that is the general partner of TTWF LP. The limited partners of TTWF LP are five trusts, principally for the benefit of members of the Chao family, including the reporting person, and two corporations owned, indirectly or directly, by certain of these trusts and by other entities owned by members of the Chao family, including the reporting person. The reporting person shares investment and voting power with respect to the shares beneficially owned by TTWF LP. The reporting person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.

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