The show, one of China's top medical technology exhibitions, starts today.  Examples of Avient’s various polymer technologies featured at the show include: Avient’s experts can provide technical support for material selection, part and tool design, and process development to help accelerate commercialization.

SHANGHAI – April 23, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, announces the launch of a new range of OnColor™ durable orange nylon colorants developed to improve the heat and long-term color stability of cautionary, orange-colored polymers for high-voltage electric vehicle (EV) connectors. Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy

At Avient Specialty Inks, we are committed to developing and growing our sustainable portfolio of screen printing inks. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Sidoti & Company Eighteenth Annual Emerging Growth Institutional Investor Forum March 18, 2014 • In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations. Platform operating income mix percentage 2005Y* 2006* 2008Y* 2010Y* 2013Y Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 17.6 $ 49.7 $ 57.2 Global Color, Additives and Inks 4.3 8.9 28.1 37.7 104.0 Designed Structures and Solutions - - - - 33.4 Specialty Platform $ 4.7 $ 12.8 $ 45.7 $ 87.4 $ 194.6 Performance Products and Solutions 75.7 64.2 31.3 54.0 56.0 Distribution 19.5 19.2 28.1 42.0 63.3 SunBelt Joint venture 91.9 102.9 28.6 18.9 - Corporate (51.5) 34.5 (425.1) (27.7) (82.4) Operating income (loss) GAAP $ 140.3 $ 233.6 $ (291.4) $ 174.6 $ 231.5 Less: Corporate operating expense 51.5 (34.5) 425.1 27.7 82.4 Operating income excluding Corporate $ 191.8 $ 199.1 $ 133.7 $ 202.3 $ 313.9 Specialty platform operating mix percentage 2% 6% 34% 43% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

PolyOne Drives Textile Industry Sustainability and Innovation with Fiber Colorant Technology CLEVELAND, Feb. 20, 2018 /PRNewswire/ -- PolyOne Corporation continues to advance its fiber colorant technology, enabling textile manufacturers, con PolyOne Corporation Announces Quarterly Dividend

Reduce Material Costs and Improve Processing with New Foaming Fluoropolymer Wire Insulation Technology New PolyOne Technology Improves Brand Protection and Combats Counterfeiting of Consumer Electronics New PolyOne Technology Improves Brand Protection and Reduces Counterfeits for Consumer Electronics

– At Medical Design and Manufacturing (MD&M) West 2017 this week, PolyOne is demonstrating commercial medical products designed and built from its comprehensive portfolio of technologies for the healthcare industry. About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

LUXEMBOURG – June 19, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, today announced the extension of its reSound™ REC Recycled Content Thermoplastic Elastomers (TPEs) portfolio with new AF 7210 grades specifically developed for automotive interior applications such as mats, grips, and console trays. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

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Patterson President and Chief Executive Officer PolyOne Corporation Page 5 PolyOne Leadership Name Title Name Title Stephen D. Christopher Murphy Vice President of Research and Development, Chief Innovation Officer Michael A. Patricia Hubbard Director Global Technology NEU™ View Medical Devices & Catheters 5) Sustainable Solutions Michael A.