ITEM 1. FEARON Lead Director, PolyOne Corporation Vice Chairman and Chief Financial and Planning Officer, Eaton Committees: 1, 4* GREGORY J. Committees: 1, 2 COMMITTEES 1.

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About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. To access PolyOne’s news library online, please go to www.polyone.com/news. Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com

1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 1 of 2 MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 11229-2006-CHN-IATF IATF Certificate No: 0573810 Valid: 21 May 2025 – 20 May 2028 This is to certify that the management system of PolyOne - Suzhou, China EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China 215024 (USI: CF4943) and, if applicable, the remote supporting locations as mentioned in the Appendix accompanying this Certificate has been found to conform to the Quality Management System standard: IATF 16949:2016 This certificate is valid for the following scope: DESIGN AND MANUFACTURE OF PLASTIC COMPOUNDING MATERIAL EXCLUSION: NONE http://www.dnv.com Certificate no.: 11229-2006-CHN-IATF IATF Certificate No: 0573810 Place and date: Katy, TX, 22 May 2025 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV Business Assurance USA Inc., 1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 2 of 2 Appendix to Certificate PolyOne - Suzhou, China Remote Support Locations included in the certification are as follows: Site Name Site Address RSL Activities Certification Body Avient China Co., Ltd. EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China 215024 (USI: T2HN2N) Sales, Contract Review DNV PolyOne Management (Shanghai) Co., Ltd.

Avient’s chemically compatible Versaflex™ PKG thermoplastic elastomers provide a wide range of tactile finishes and surface textures and are REACH SVHC compliant. VERSAFLEX PKG 4345, 4355, 4365 VERSAFLEX PKG 4465 VERSAFLEX PKG 4570 VERSAFLEX PKG 4665 Chemical Compatibility Soaps, low-cost solution for non-polar oils Soaps, some oils Polar & non-polar oils, non-polar solvents Non-polar oils (abrasion resistant) Regulatory Compliance* REACH SVHC, FDA 21 CFR EU 10/2011 REACH SVHC & FDA 21 CFR REACH SVHC & FDA CFR REACH SVHC & FDA CFR Hardness 45A, 55A, 65A 65A 70A 65A Overmolded Substrate Polypropylene Polypropylene Polycarbonate ABS PC/ABS Polycarbonate ABS PC/ABS Color Translucent Translucent Natural Natural * Please contact Avient for additional information HOW CHEMICALLY COMPATIBLE VERSAFLEX PKG TPEs MAKE THE DIFFERENCE IN COSMETIC PACKAGING Chemical compatibility – Versaflex PKG TPEs do not discolor, etch, crack or delaminate when in contact with most soaps, lotions, oils, surfactants and solvents found in cosmetics. Wide range of tactile finishes – Versaflex PKG materials enable you to develop a wide range of finishes such as silky, smooth, tacky and grippy.

NOTICE OF 2019 ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT PolyOne Corporation MESSAGE FROM OUR CEO Your vote is very important. Kunkle, Senior Vice President, General Counsel and Secretary(1) Bradley C. Company Contributions to PolyOne Supplemental Retirement Benefit Plan.

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