WithStand™ Antimicrobial Technology provides antimicrobial and antifungal additives that reduce bacterial, mold and fungal growth in finished plastic parts used in hospital surfaces. Develop an alternative to traditional nylon materials that meets dimensional stability, impact and wear resistance requirements, while enabling the customer to address consistency of supply and sustainability objectives. Avient’s newest Trilliant™ HC formulation not only provided improved chemical resistance over traditional nylon, it was developed a lower carbon footprint material.

Microsoft PowerPoint - AVNT Mar 2023 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) M A R C H 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Examples include: • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is a certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste. EPS $0.14 $2.67 $3.04 TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards 90th percentile 84th ESG Ratings Performance 1 14 PEOPLE C U L T U R E I S E V E R Y T H I N G Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $17 million raised since 2010 Diversity & Inclusion 15 2022 RE SU LT S Q4 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 17 $ millions CAI: Price / Mix 42 Inflation (20) SEM: Price / Mix 14 Inflation (10) Net Price Benefit 26 Wage and Energy Inflation (13) Clariant Color Integration Synergies 4 Incentives, Other Employee Costs 21 FX (10) Q4 2022 $107 Adjusted Q4 2021 $ 132 Demand (50) Russia Import Sales (3) • Demand contraction especially prevalent in EMEA and Asia • Pricing continues to cover inflation of raw materials, wages and energy PROVEN TRACK RECORD OF STRONG AND IMPROVING FREE CASH FLOW GENERATION 18 • Periods of economic weakness have driven higher levels of cash generation due to working capital management • Anticipate continued strong free cash flow generation and conversion despite global uncertainty 78% 78% 80% 80% 81% 78% 84% 83% 80% 0% 30% 40% 50% 60% 70% 80% 90% 2014 2015 2016 2017 2018 2019 2020 2021 2022 0 50 100 150 200 250 300 350 400 re e as h F lo w C o n ve rs io n re e as h F lo w FCF $ AVNT FCF Conversion % S&P FCF Conversion % Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. 2020 is pro forma for Clariant Color and 2022 is pro forma for Avient Protective Materials

PolyOne is showcasing packaging made with Impress technology at Science & Innovation Exhibition Area (Hall11.3, Stand R41) from May 16-19 at Chinaplas in Guangzhou. About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. Marketing Communications Manager, Asia PolyOne Corporation +86 21 6028 4888 jennifer.huang@avient.com

Combining our advanced colorant technology with bio-based polymers reduces the risk and cost of post-process testing, allowing processors to take full advantage of the emerging market for bags and packaging capable of home composting.” About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com

Designed to improve driver and passenger safety and comfort, this new leading-edge TPE technology reduces volatile organic compounds (VOCs) by 50 percent and minimizes fogging and odor in interior automotive components.  About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. Sandy Wagner Marketing Communications Manager PolyOne Corporation +1 815-385-8500 sandy.wagner@avient.com

– February 6, 2018 – At Medical Design and Manufacturing (MD&M) West this week, PolyOne is highlighting its extensive portfolio of polymers and colorants for the healthcare industry while also featuring the experts who stand behind the technology. PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Wilflex Armor – Newly formulated under base inks with the latest bleed blocking chemistry and low cure technology to fight the toughest dye migration PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Avient Corporation (NYSE: AVNT), with expected 2021 revenues of $4.6 to $4.7 billion, provides specialized and sustainable material 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 Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com

CLEVELAND – January 16, 2019 – PolyOne today announced it has rebranded ElectriPlast material technology as Surround™ EMI/RFI Shielding Formulations. PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

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