Trinseo redomiciles parent company from Luxembourg to Ireland

Berwyn, PA – Trinseo has completed a transaction to redomicile its parent company from Luxembourg to Ireland, by merger into an Irish public limited company, Trinseo PLC. The merger was approved by shareholders at the Company’s annual general meeting in June of this year.

As a result of the merger, all ordinary shares of Trinseo S.A. have been exchanged for ordinary shares of Trinseo PLC on a one-for-one basis. Trinseo shares will continue to be listed on the New York Stock Exchange (NYSE) under ticker symbol “TSE.” No additional action by shareholders is necessary.

The merger is expected to result in benefits to Trinseo and its shareholders, including simplifying regulatory requirements, increasing flexibility on capital deployment such as increased authority to issue new shares or repurchase shares, providing dividend withholding tax benefits to shareholders and providing Trinseo with operational efficiencies and reductions in its operating and administrative costs.

Trinseo will continue to conduct the same business operations as were conducted prior to the merger. Furthermore, Trinseo remains subject to the U.S. Securities and Exchange Commission requirements and all applicable corporate governance rules of the NYSE.