Specimen Common Stock Certificate for Westlake Chemical Corporation

Summary

This document is a specimen stock certificate for Westlake Chemical Corporation, incorporated in Delaware. It certifies ownership of fully paid and non-assessable shares of common stock with a par value of $0.01 each. The certificate is transferable on the corporation’s books by the holder or an authorized attorney upon proper endorsement and surrender. It must be countersigned by the transfer agent and registrar to be valid. The certificate also outlines procedures for transfer, signature guarantees, and provides information on shareholder rights upon request.

EX-4.1 4 h15326a1exv4w1.txt FORM OF SPECIMEN STOCK CERTIFICATE Exhibit 4.1 NUMBER INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE COMMON STOCK [SHARES] [THIS CERTIFICATE IS WESTLAKE CHEMICAL SEE REVERSE FOR CERTAIN TRANSFERABLE IN CORPORATION DEFINITIONS ] CUSIP XXXXXX XX X THIS CERTIFIES THAT IS THE OWNER OF FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $.01 EACH OF THE COMMON STOCK OF CERTIFICATE OF STOCK Westlake Chemical Corporation transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon surrender of this certificate properly endorsed. This certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. Witness the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. Dated: /s/ ALBERT CHAO (WESTLAKE LOGO) /s/ TAI-LI KENG PRESIDENT AND CHIEF EXECUTIVE OFFICER VICE PRESIDENT AND Countersigned and Registered: TREASURER [ ] Transfer Agent and Registrar, /s/ ----------------------------------- Authorized Signature (WESTLAKE LOGO) The Company will furnish without charge to each stockholder who so requests a statement of the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock of the company or series thereof and the qualifications, limitations or restrictions of such preferences and/or rights. Any such request is to be addressed to the Secretary of Westlake Chemical Corporation at its principal executive office, or to its transfer agent named on the face of this certificate. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM as tenants in common TEN ENT as tenants by the entireties JT TEN as joint tenants with right of survivorship and not as tenants in common UNIF GIFT MIN ACT Custodian - --------------------------------------------------------------------------------------------------------------------- (Cust) (Minor) under Uniform Gifts to Minors Act - --------------------------------------------------------------------------------------------------------------------- (State) UNIF TRF MIN ACT Custodian (until age) - --------------------------------------------------------------------------------------------------------------------- (Cust) under Uniform Transfer to Minors Act - --------------------------------------------------------------------------------------------------------------------- (Minor) (State) - --------------------------------------------------------------------------------------------------------------------- Additional abbreviations may also be used though not in the above list. FOR VALUE RECEIVED - --------------------------------------------------------------------------------------------------------------------- HEREBY SELL, ASSIGN AND TRANSFER UNTO Please insert Social Security or other identifying number of transferee ---------------------------------------------------------- ---------------------------------------------------------- ---------------------------------------------------------- Please print or typewrite name and address of transferee ---------------------------------------------------------- ---------------------------------------------------------- Please insert number of shares transferred ----------------------------------------------------------- ----------------------------------------------------------- ----------------------------------------------------------- SHARES REPRESENTED BY THE WITHIN

CERTIFICATE, AND DO HEREBY IRREVOCABLY CONSTITUTE AND APPOINT ------------------------------------------------------------ ------------------------------------------------------------ ATTORNEY TO TRANSFER THE SAID SHARES ON THE BOOKS OF THE WITHIN-NAMED COMPANY WITH FULL POWER OF SUBSTITUTION IN THE PREMISES. ------------------------------------------------------------ DATED ------------------------------------------------------------ SIGNATURE ------------------------------------------------------------ NOTICE: THE SIGNATURE TO THIS TRANSFER MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. ------------------------------------------------------------ SIGNATURE GUARANTEED BY: ------------------------------------------------------------ THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCK-BROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. ------------------------------------------------------------