WESTLAKE CORP — Director's Dealing 2012

Feb 22, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2012-02-17

Reporting Person: Chao Albert (Director, President & CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-17	Common Stock	A	11982	$00	Acquired	120875	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-17	Employee Option (right to buy)	$60.105	A	30787	Acquired	2022-02-17	Common Stock (30787)	Direct
2012-02-17	Employee Option (right to buy)	$60.105	A	24629	Acquired	2022-02-17	Common Stock (24629)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	20000	Indirect
Common Stock	90908	Indirect
Common Stock	46005277	Indirect

Footnotes

F1: The shares of restricted stock will vest on February 17, 2015.

F2: Even though reporting person and reporting person's mother share a household, 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.

F3: The stock options are exercisable in three equal installments on February 17, 2013, 2014 and 2015.

F4: Even though reporting person and reporting person's brother, James Chao, share a household, 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.