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
Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐
Check the appropriate box:
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☐ | | Preliminary Proxy Statement |
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☐ | | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
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☐ | | Definitive Proxy Statement |
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☒ | | Definitive Additional Materials |
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☐ | | Soliciting Material under§240.14a-12 |
Trinseo S.A.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):
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☒ | | No fee required. |
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☐ | | Fee computed on table below per Exchange Act Rules14a-6(i)(1)and 0-11. |
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| | (1) | | Title of each class of securities to which transaction applies: |
| | (2) | | Aggregate number of securities to which transaction applies: |
| | (3) | | Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule0-11 (set forth the amount on which the filing fee is calculated and state how it was determined): |
| | (4) | | Proposed maximum aggregate value of transaction: |
| | (5) | | Total fee paid: |
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☐ | | Fee paid previously with preliminary materials. |
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☐ | | Check box if any part of the fee is offset as provided by Exchange ActRule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. |
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| | (1) | | Amount Previously Paid: |
| | (2) | | Form, Schedule or Registration Statement No.: |
| | (3) | | Filing Party: |
| | (4) | | Date Filed: |

SUPPLEMENT TO THE 2017
NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT
DATED MAY 10, 2017
FOR THE ANNUAL GENERAL MEETING OF SHAREHOLDERS
TO BE HELD ON JUNE 21, 2017
This Supplement to the Notice of Annual General Meeting of Shareholders and Proxy Statement provides updated information with respect to the 2017 Annual General Meeting of Shareholders (the “General Meeting”) of Trinseo S.A. (the “Company”) to be held on Wednesday, June 21, 2017.
On May 10, 2017, the Company commenced distributing to its shareholders a Notice of the 2017 Annual General Meeting of Shareholders and its Definitive Proxy Statement (the “Notice and Proxy Statement”) for the General Meeting. This Supplement, which describes a recent change in the board of directors’ proposal to elect four Class III nominees should be read in conjunction with the Notice and Proxy Statement.
Withdrawal of Class III Director Nominee
On May 15, 2017, Jeannot Krecké announced his intention to resign as a member of the Company’s board of directors for personal reasons effective May 22, 2017. As a result, Mr. Krecké will not stand as a Class III director nominee under Proposal 1 - Election of Class III Directors (“Item 1b” on the Company’s proxy voting forms) at the General Meeting. The election of Mr. Krecké to the Company’s board of directors (Item 1b), therefore, will not be presented or voted upon at the General Meeting.
Voting Matters
If you have already returned your proxy voting form or provided voting instructions, you do not need to take any action unless you wish to change your vote. Proxy voting forms already returned by shareholders will remain valid and will be voted at the General Meeting unless revoked. Shares represented by proxy voting forms returned before the General Meeting will not be voted in respect of Item 1b. If you have not yet returned your proxy voting form or submitted your voting instructions, please complete the form or submit instructions, disregarding Item 1b.
None of the other agenda items presented in the Notice and Proxy Statement are affected by this Supplement, and shares represented by proxy voting forms returned before the General Meeting will be voted with respect to all other matters properly brought before the General Meeting as instructed on the form.
Information regarding how to vote your shares, or revoke your proxy or voting instructions, is available in the Company’s Proxy Statement.
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By Order of the Board of Directors |
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Angelo N. Chaclas Senior Vice President, Chief Legal Officer and Corporate Secretary |
May 19, 2017 |