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EPS (1) $0.14 $2.67 $3.04 2006 2018 2022PF TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards 90th percentile 84th ESG Ratings Performance 3 1 4 10 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 11 2022 RE SU LT S Q4 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 13 $ 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 EBITDA 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 14 • 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% 10% 20% 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 F re e C as h F lo w C o n ve rs io n F re e C 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. $600 $592 2021 2022 $3.02 $3.04 2021 2022 FULL YEAR 2022 PERFORMANCE (TOTAL COMPANY PRO FORMA) 15 Sales Adjusted EBITDA $3,712 $3,653 2021 2022 -2% Adjusted EPS -1% + 1% (in millions) (in millions) (+4% excluding FX) (+5% excluding FX) (+9% excluding FX) FULL YEAR 2022 SEGMENT PERFORMANCE 16 CAI $2,402 $2,355 Sales ($ in millions) $409 $402 EBITDA SEM Pro Forma $1,308 $1,300 Sales $278 $272 EBITDA (+4% excluding FX) - 2% -1% (+5% excluding FX) - 2% (+4% excluding FX) - 2% (+2% excluding FX) PRO FORMA FULL YEAR EPS BRIDGE 17 Pro Forma 2021 Adjusted EPS 3.02$ Foreign Currency (0.23) Russia Import Sales (0.07) Outdoor High Performance (0.13) Color, Additives and Inks 0.18 Specialty Engineered Materials 0.24 Corporate Costs / Other 0.03 Pro Forma 2022 Adjusted EPS 3.04$ FULL YEAR EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 18 $ millions CAI: Price / Mix 247 Inflation (176) SEM: Price / Mix 121 Inflation (77) Net Price Benefit 115 Wage and Energy Inflation (47) Clariant Color Integration Synergies 23 Incentives, Other Employee Costs 43 FX (34) Full Year 2022 $592 Adjusted EBITDA Full Year 2021 $ 600 Demand (99) Russia Import Sales (9) • Demand primarily impacted by China lockdowns, 4th quarter industrywide destocking and declining consumer sentiment • Pricing outpaced inflation of raw materials, wages and energy 2023 G U IDA N CE $125 $530 Q1 FY $0.55 $2.40 Q1 FY 2023 GUIDANCE 20 Sales Adjusted EBITDA $845 $3,450 Q1 FY Adjusted EPS (in millions) (in millions) CASH FLOW / BALANCE SHEET 21 • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x K E Y G R O W T H D R I V E R S A N D T R A N S F O R M E D P O R T F O L I O GROWTH DRIVERS: PROVEN SUCCESS 23 (1) Pro forma for the acquisition of Avient Protective Materials (APM) COMPOSITES $51 $84 $212 $668 2016 2018 2020 2022 Long Term Growth Rate 10% Organic CAGR 10% HEALTHCARE $108 $113 $231 $293 2016 2018 2020 2022 Long Term Growth Rate 8-10% Organic CAGR 11% ASIA/EMERGING REGIONS $265 $358 $726 $830 2016 2018 2020 2022 Long Term Growth Rate 5% Organic CAGR 12% $340 $455 $790 2016 2018 2020 2022 $1,175 SUSTAINABLE SOLUTIONS Long Term Growth Rate 8-12% Organic CAGR 11% (1) (1)(1) (Sales in $ millions) #1 Color Formulator Dyneema® - World’s Strongest Fiber™ #1 in Composites applications for outdoor high performance #1 in Performance Inks Customized solutions 140+ PhDs on staff Rapid development of innovative products Extensive patent (2,500+) portfolio 33% Vitality Index Better-positioned toward stable, high-growth end markets Consumer, packaging, healthcare and defense comprise nearly 60% of sales Agnostic to raw materials, helping all customers achieve their goals Broad portfolio of diversified sustainable solutions 90%+ of our innovation pipeline invested in sustainable solutions Long-term growth rate well above GDP with expectations of 8-12% LEVERAGING OUR TRANSFORMED PORTFOLIO 24 Healthcare 8% Packaging 24% Consumer 20% Building & Construction 10% Industrial 15% Transportation 9% Energy 4% Telecom. 4% 2022 PF $3.65B sales Defense 6% Leading Positions Sustainable SolutionsDiversified IndustriesSpecialty Formulator (1) 2022 Pro forma for the acquisition of Avient Protective Materials (2) 2020 Pro forma for the acquisition of Clariant Color (1)(2) (1) $340M $455M $790M 2016 2018 2020PF 2022PF $1,175M P EE R C O M PAR IS O N S AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of February 13, 2023 Note: Avient reflects 2023 estimated revenue of $3,450 and estimated run-rate CAPEX of $110M. 27 3 2 3 3 4 4 3 4 5 5 5 6 7 7 A vi en t K W R P P G F U L A V Y R P M F M C H U N H X L C E E C L A S H S C L E M N FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of February 13, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Avient Specialty Formulators Other Specialty / Chemical Companies 2023E(%) 28 79 87 81 79 76 73 90 77 76 75 73 64 59 33 A vi en t K W R P P G F U L A V Y R P M F M C C E A S H H X L E C L H U N E M N S C L MULTIPLE EXPANSION Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of February 13, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $530M and closing share price of $38.89. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 29 EV / 2023E EBITDA Historic Multiple 6.5 8.3 10.0 15.6 13.9 13.7 12.8 9.5 18.0 17.5 12.3 10.2 9.7 8.8 8.4 5.9 A vi en t (2 01 1) A vi en t (2 01 8) A vi en t K W R P P G R P M A V Y F U L H X L E C L F M C A S H S C L H U N E M N C E SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE (1) Total company adjusted EBITDA of $592M includes corporate costs $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 31 C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 32 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET US & Canada 52% EMEA 35% Asia 13% REGION 33 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 34 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

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Homepage // News Center // Avient Launches High Performance UV Laser Marking Technology for FEP Wire & Cable Avient Launches High Performance UV Laser Marking Technology for FEP Wire & Cable This technology is offered for colors specified by the aeronautics industry, including light red, green, violet, blue, white and gray. 

Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 2022 SUSTAINABILITY REPORT 15 Avient Confidential 16 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 16 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLDER INFLUENCE DRIVES DEMAND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 17 AP P EN D IX 20 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 22 3 2 3 3 4 4 3 3 4 5 5 7 8 8 A vi en t K W R P P G F U L R P M A V Y F M C H U N C E H X L E C L A S H E M N S C L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of July 21, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Avient reflects 2023 adjusted EBITDA guidance of $525M and estimated run-rate CAPEX of $110M. 2023E (%) 23 79 90 84 83 76 73 88 82 77 74 72 67 57 20 A vi en t K W R P P G F U L A V Y R P M F M C C E H X L E C L A S H H U N E M N S C L Avient Specialty Formulators Other Specialty / Chemical Companies MULTIPLE EXPANSION Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $525M and closing share price of $40.93. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 24 EV / 2023E EBITDA Historic Multiple 6.5 8.3 10.3 14.4 13.6 13.6 12.4 9.0 20.2 18.2 11.5 10.6 9.7 9.6 8.7 8.3 A vi en t (2 01 1) A vi en t (2 01 8) A vi en t (2 02 3) R P M P P G K W R A V Y F U L E C L H X L F M C A S H S C L C E H U N E M N Avient Specialty Formulators Other Specialty / Chemical Companies SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 26 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 B ILL ION US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 27 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 B ILL ION US & Canada 52% EMEA 35% Asia 13% 28 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2022 PROFORMA AVIENT REGIONAL SALES Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 29 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 30 Capex / Revenue 2022E (%) AVIENT IS ASSET LIGHT Avient Specialty Formulators Other Chemical/Specialty Companies 2 3 2 2 3 3 4 3 3 5 5 5 7 7 7 A vi e nt A vi e nt ( E xc l. D is t. ) K W R P P G F U L R P M A V Y F M C H U N H X L S C L E C L E M N C E A S H Source: Peer data per Bloomberg market data as of February 15, 2022. OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 5.4 8.5 10.1 10.0 15.7 15.0 14.2 12.7 10.2 25.0 19.7 17.7 13.2 12.3 10.0 9.9 8.9 8.5 8.3 6.6 A vi en t (2 01 1) A vi en t (2 01 6) A vi en t (2 02 1) A vi en t (T o da y) R P M K W R P P G A V Y F U L A L B E C L H X L A S H F M C B N R E M N U N V R C E S C L H U N Historic Multiple SUMMARY: WHY INVEST IN AVIENT?

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