Because of the collaborative engineering with Avient, we were able to confidently transition to the long-fiber technology and ultimately deliver a high-end, innovative product to our customers.” Examples include:  •    Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic •    Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation  •    Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses  Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com

Avient Long Fiber Technology Long Fiber Technologies Application Development Avient long fiber technologies application development center bulletin highlighting services including design support, material validation, simulation support, and in-house prototyping

PolyOne Corporation PolyOne Corporation PolyOne Corporation

ColorMatrix AAnchor is an acetaldehyde control technology developed to address the challenges associated with increased rPET content in PET packaging. ColorMatrix™ AAzure™ Process Aid with Acetaldehyde Control Technology ColorMatrix™ AAnchor™ Acetaldehyde Control Technology for PET

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Gabelli & Company 5th Annual Specialty Chemical Conference March 20, 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.

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.

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

History The technology to produce novoloid phenolic fiber was initially developed in the late 1960’s with commercial fiber production and development by Gunei Chemical Industry Co. based in Japan.

They are developed to improve impact resistance at both room temperatures and subzero conditions compared to no additives added, enabling both product durability and visual appeal. Additionally, these additives are developed to promote the recyclability of PET to advance sustainability. Additive technologies that can give your product needed protection from light

Transform Product Development Avient Long Fiber Technology Long Fiber Technologies Application Development