Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com, Media Contact: Kyle G.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com, Media Contact: Kyle G.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G.

Board of Directors Female or U.S. Our Board also represents a balanced mix of fresh perspectives from our newer Directors and more seasoned perspectives from our longer tenured Directors. Lin Retired President, Chief Executive Officer and Director, Calisolar Inc.

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. Zach Crawford On behalf of the Board of Directors for ColorMatrix Europe Limited Signature: Date: 6th June 2024

Franken Managing Director Registration number 1682418.1 Start date certificate 2910112024 Certificate valid until 2910112027 Date of first certificate 2910112009 Certificate for the quality management system according to NENNENNENNEN1111ENENENEN1111ISOISOISOISO 9001:9001:9001:9001:2015201520152015 The certification body TÜV NORD Nederland hereby confirms that the certification 1682418.12910112024 took place in accordance with its certification regulations for the organisations 29101120272910112009 FiberFiberFiberFiber1111Line International B.V.Line International B.V.Line International B.V.Line International B.V.

Franken Managing Director Registration number 1682419.2 Start date certificate 0610312025 Certificate valid until 2810212028 Date of first certificate 2810212019 Previous certificate valid until 2810212025 Date audit 0411212024 – 1211212024 Certificate for the environmental management system according to NENNENNENNEN1111ENENENEN1111ISOISOISOISO 14141414001:001:001:001:2015201520152015 including the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schema The certification body TÜV NORD Nederland hereby confirms that the certification 1682419.20610312025 took place in accordance with its certification regulations for the organisations 28102120282810212019 FiberFiberFiberFiber1111Line International B.V.Line International B.V.Line International B.V.Line International B.V.

Board of Directors Female or U.S. Our Board also represents a balanced mix of fresh perspectives from our newer Directors and more seasoned perspectives from our longer tenured Directors. Lin Retired President, Chief Executive Officer and Director, Calisolar Inc.

Board of Directors Female or U.S. Our Board also represents a balanced mix of fresh perspectives from our newer Directors and more seasoned perspectives from our longer tenured Directors. Lin Retired President, Chief Executive Officer and Director, Calisolar Inc.

ABERNATHY Director February 20, 2024 Robert E. GOFF Director February 20, 2024 Gregory J. PREETE Director February 20, 2024 Kerry J.