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
x	Definitive Additional Materials
o	Soliciting Material under §240.14a-12
Huntsman Corporation
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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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. *** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting to Be Held on May 7, 2015. Meeting Information See the reverse side of this notice to obtain proxy materials and voting instructions. M84874-P60124 HUNTSMAN CORPORATION PROXY SERVICES C/O COMPUTERSHARE INVESTOR SERVICES P.O. BOX 43102 PROVIDENCE, RI 02940-5068 Meeting Type: Annual Meeting For holders as of: March 13, 2015 Date: May 7, 2015 Time: 8:30 AM, CDT Location: The Woodlands Waterway Marriott Hotel and Convention Center 1601 Lake Robbins Drive The Woodlands, TX 77380

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: How To Vote Please Choose One of the Following Voting Methods 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 23, 2015 to facilitate timely delivery. 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. Proxy Materials Available to VIEW or RECEIVE: M84875-P60124 1) NOTICE OF ANNUAL MEETING AND PROXY STATEMENT 2) ANNUAL REPORT TO STOCKHOLDERS FOR THE YEAR ENDED DECEMBER 31, 2014 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.

Voting Items M84876-P60124 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, 2015. 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. 01) Peter R. Huntsman 02) Wayne A. Reaud 03) Alvin V. Shoemaker 1. Election of the following three nominees as Class I directors Nominees: The Board of Directors recommends you vote FOR the following: The Board of Directors recommends you vote FOR the following proposals:

M84877-P60124