<p>Trinseo plc has filed an initial statement of beneficial ownership with the U.S. Securities and Exchange Commission. The filing identifies Carol Flaton as the beneficial owner in her role as Director. The full filing can be accessed through the link below. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Trinseo plc published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001775666-26-000003), on January 20, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT) Original Document: here</p>

Trinseo plc Files Initial Statement of Beneficial Ownership for Director Carol Flaton