Huntsman (HUN) DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )
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o	Definitive Proxy Statement
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Huntsman Corporation
(Name of Registrant as Specified In Its Charter)
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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting to Be Held on May 2, 2013. Meeting Information HUNTSMAN CORPORATION Meeting Type: Annual Meeting For holders as of: March 8, 2013 Date: May 2, 2013 Time: 8:30 AM, CDT Location: The Four Seasons Hotel 1300 Lamar Street Houston, TX 77010 You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. PROXY SERVICES C/O COMPUTERSHARE INVESTOR SERVICES P.O. BOX 43102 PROVIDENCE, RI 02940-5068 M54441-P34326 See the reverse side of this notice to obtain proxy materials and voting instructions.

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: 1) NOTICE OF ANNUAL MEETING AND PROXY STATEMENT 2) ANNUAL REPORT TO STOCKHOLDERS FOR THE FISCAL YEAR ENDED DECEMBER 31, 2012 How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. XXXX XXXX XXXX XXXX XXXX XXXX Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 18, 2013 to facilitate timely delivery. M54442-P34326 How To Vote Please Choose One of the Following Voting Methods Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. Vote In Person: If you would like to attend the Annual Meeting of Stockholders and vote in person, please review the requirements in the Questions and Answers section of the Proxy Statement. For directions to and a map of the location of the Annual Meeting of Stockholders visit the company's website at www.huntsman.com and click on the "Investor Relations" link. XXXX XXXX XXXX

Voting Items The Board of Directors recommends you vote FOR the following: 1. Election of the following four nominees as Class III directors Nominees: 01) Nolan D. Archibald 02) M. Anthony Burns 03) Jon M. Huntsman, Jr. 04) Sir Robert J. Margetts The Board of Directors recommends you vote FOR the following proposals: 2. Advisory vote to approve named executive officer compensation. 3. Ratification of the appointment of Deloitte & Touche LLP as Huntsman Corporation's independent registered public accounting firm for the year ending December 31, 2013. The Board of Directors recommends you vote AGAINST the following proposal: 4. Vote on a proposal submitted by a stockholder urging that the Board of Directors take necessary steps to elect each director annually. In their discretion, the proxies are authorized to vote upon such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof. M54443-P34326

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