We are Avient. 4 BETTER TOGETHER: POLYONE AND CLARIANT MASTERBATCH Key Financial Data (1) 2021E Sales $4.1 billion 2021E EBITDA $510 million 2021E Free Cash Flow $250 million 87% of EBITDA from specialty applications (1) As of February 9, 2021 webcast Innovation is the lifeblood of a specialty company. Design times can be less than three days for colorants. Purchase price multiple rapidly declining on strength of business and synergy capture (1) (1) (1) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition ($ in millions) 12 SEM CAI Avient • Composites and Outdoor High Performance applications drove positive mix within SEM • Clariant Masterbatch synergy realization under way and expected to drive further margin expansion in 2021 • Portfolio transformation to high growth end markets with focus on sustainable solutions megatrend (1) EBITDA MARGIN EXPANSION Distribution 15.2% 17.6% 11.1% 12.1% 6.4% 6.3% 15.2% 16.2% (2) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Total company reflects adjusted EBITDA margins SPOTLIGHT: COMPOSITES 13 • SEM delivers a record year in 2020 – 13% operating income growth and over 200 bps in margin expansion year-over-year • Prior investments in composites platform and outdoor high performance applications paying off, resulting in substantial growth over the last two years SEM Operating Income (OI % of Sales) ($ in millions) $(0.1) $(1.0) $2.2 $19.1 $26.8 2016 2017 2018 2019 2020 Composites Performance (Operating Income) $83.7 $94.4 2019 2020 (11.2%) (13.3%) 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 11 12 13 14 15 16 17 18 19 20 $19 $160 $338 2011 2019 2020 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 11 12 13 14 15 16 17 18 19 20 21E FREE CASH FLOW AND CAPITAL ALLOCATION 14 Free Cash Flow Dividends Share Repurchases Deleveraging 3.5x 2.7x 2019PF 2020PF Growing Dividend Cumulative Buybacks Net Leverage $B n $ p e r sh ar e Cash Generation (1) (1) ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS ~$338MM 2.7x NET LEVERAGE (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition GREAT PLACE TO WORK!

We offer a wide variety of colorants and additives, engineered materials, thermoplastic elastomers, color forecasting guides, and expert services, that enable us to better support your success and drive the industry towards a more sustainable and circular economy." Additional highlights at the show include various high-temperature colorants and color services, such as: Colorant Chromatics™ Transcend™ Premier Healthcare Colorants: based on polysulfone and PEEK resins with the capability of withstanding up to 1,000 autoclave cycles and high-heat sterilization at 150°C, these colorants are formulated with ingredient materials that have been successfully tested for ISO 10993 biocompatibility and are available in a line of bright and vivid transparent or opaque shades

Avient’s new Colorant Chromatics™ PVDF Processing Aids are an excellent choice for wire & cable extrusion Our new Colorant Chromatics additives provide recognizable benefits during the PVDF extrusion process,” said Felipe Reichert, Global Marketing Director for Color, Additives, and Inks at Avient. Colorant Chromatics PVDF Processing Aids can be used for wire and cable, tube, pipe, and filament extrusion applications, among others.

SmartHeat RHC improves bottle color, clarity, mechanical strength, and processability. at PTI, a package engineering firm, commented that SmartHeat RHC demonstrated "impressive color performance."  Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

Color Design Add a material that’s soft to the touch, colorable and durable. Because they are readily colorable, these materials reduce scrap due to off-spec or inconsistent color.

New Super Black Textile Colorants Meet Global Demands for Intense, Deep Effects SHANGHAI – December 10, 2018 – PolyOne today launched a new line of super black textile colorants with outstanding darkness, superior color fastne SHANGHAI – Oct 31, 2018 – PolyOne is highlighting its its full portfolio of medical plastics, including an extensive range of medical colorants an

New Colorant Chromatics™ Metallic Effect Pre-Colored Sulfone Formulations Launched by Avient at Fakuma 2024 New Colorant Chromatics™ Metallic Effect Pre-Colored Sulfone Formulations Launched by Avient Corporation at Fakuma 2024 To download a high-resolu Avient Launches New Recycled-Content Thermoplastic Elastomers and Metallic Effect Pre-Colored Sulfone Formulations at Fakuma 2024, booth 5106 in Hall

ABRE Sustainability Forum to Include Highlights from Avient’s Sustainable Color and Additives Solutions Avient Introduces Durable Orange Nylon Colorants for High Voltage Electrical Vehicle (EV) Connectors Avient Introduces durable orange nylon colorants for High Voltage Electrical Vehicle (EV) Connectors, combining high heat and long-term color stabilit

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Color, Additives and Inks Color, Additives and Inks Color, Additives and Inks