Actions included the election of the following 10 individuals to serve on the company's Board of Directors until the 2020 annual meeting: Director

At the highest level, Avient’s Board of Directors has had a long-standing Environmental, Health & Safety (EH&S) Committee overseeing and monitoring environmental, health, safety, security, and product stewardship standards—including oversight of climate-related risks*. Avient’s Vice President of EH&S and Senior Vice President of Global Operations and Process Improvement are responsible for reporting performance to the EH&S Committee of the Board of Directors.

Leffler joined PolyOne in 2008 as senior finance manager in Corporate Treasury and was later promoted to finance director, South America, while based in the company's offices in Sao Paulo, Brazil. Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com

While he was at P&G, he led purchasing teams for various business units in Mexico, Switzerland and Venezuela, before becoming associate director of external supply solutions at P&G’s world headquarters in Cincinnati, Ohio. Rose Director, Corporate Communications PolyOne Corporation +1 440.930.3162 kyle.rose@avient.com

After three years of dedicated work throughout our facilities, we’re thrilled to have been recognized for operational excellence in our maintenance reliability processes and practices,” said Brett Warland, director, process improvement, PolyOne Corporation. Media contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

GOFF President and Chief Executive Officer, Tesoro Corporation and Chairman and Chief Executive Officer, Tesoro Logistics Committees: 3, 4 GORDON D. Goff Director Date: February 12, 2013 /S/ GORDON D. GOFF President and Chief Executive Officer, Tesoro Corporation and Chairman and Chief Executive Officer, Tesoro Logistics Committees: 3, 4 GORDON D.

We are committed to doing business the right way, including without limitation, conducting business ethically and to minimizing the risk of slavery and human trafficking in our own business and in that of our suppliers as much as possible This statement is approved by ColorMatrix by its board of directors. On behalf of the Board of Directors for ColorMatrix Europe Limited: Amanda Saal (Director) Signature: Date: 26th June 2025

Board of Directors

Board of Directors

Board of Directors