Global Compact & fulfilled Communication of Progress (COP) requirements • New Sustainability Strategy overview page including our 2022 AIP ESG metrics • New ESG Performance page with ESG ratings, awards, and certifications • Increased disclosures on carbon emissions, including disclosure of Climate Change Scenario Analysis • Added new Product Stewardship and Chemical Management policies • Enhanced data reporting for Workforce Demographics • Improved social disclosures on human rights, dependent care and special leave and strategic training management 2021 SUSTAINABILITY REPORT Launching integrated sustainability website in parallel with report Aligned with leading reporting frameworks 6 Released July 2022 ESG RATINGS PERFORMANCE ESG AWARDS AND CERTIFICATIONS ESG PERFORMANCE & AWARDS 84th 3 1 2 7 T RAN S FO R MAT IO NAL OVE RV IE W Avient Protective Dyneema ® RECENT TRANSACTIONS Acquired Divested $1.45 B $0.95 B 9 Distribution UPDATED CAPITAL STRUCTURE & LIQUIDITY • Proceeds from completed sale of Distribution used to pay near-term maturing debt to strengthen balance sheet • Fixed/floating debt ratio of ~55/45 • Proven track record of deleveraging following major acquisitions through strong free cash flow generation • 2022 pro forma net debt/adjusted EBITDA expected to be 3.1x $725 $725 $575 $500 $600 $525 $650 $650 $600 Capital Structure Cas h $544 Undr awn Rev olve r $250 Liquidity $3.15B $2.40B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes 2023 Notes After Dyneema Acquisition After Distribution Divestiture $794M (1) $250M reflects estimated undrawn revolver following the divestiture of Distribution 10 PREVIOUS TRANSACTIONS Performance Solutions Products & $0.8 B COLOR $1.4 B Acquired (2020)Divested (2019) 11 • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $75 million of realized synergies anticipated in 2022 • Acquisition completed on July 1, 2020 for $1.45 billion. EBITDA Margins • Focus on organic growth combined with transformative and bolt-on acquisitions • Divested commodity businesses tied to more cyclical end markets • Expanded presence in high growth areas of sustainable solutions, specialty healthcare applications, composites and more resilient end markets 5.4% 11.5% 16.1% 2006 2018 2022PF $142 $408 $585 2006 2018 2022PF 2006 figures exclude joint venture results 19 RETURNING CASH TO SHAREHOLDERS Growing Dividend 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 22 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 0.99 11 12 13 14 15 16 17 18 19 20 21 22 23 ~$1Bn REPURCHASED OVER LAST 11 YEARS ~$550MM PAID OVER LAST 11 YEARS Dividends Share Repurchases Cumulative Buybacks $B n $ p e r sh ar e 2022 PRO FORMA ADJUSTED EPS Earnings Growth Expanding Profitability $0.15 $1.09 $2.08 $2.67 2009 2012 2015 2018 2022PF T H IR D Q UART ER 2022 RE S U LTS $110 $119 $0.61 $0.59 Q3 2022 PERFORMANCE (TOTAL COMPANY CONT. OPS) 21 Sales Adjusted EBITDA $818 $823 + 1% Adjusted EPS + 8% - 3% (in millions) (in millions) (+ 9% excluding FX) (+ 18% excluding FX) (+ 5% excluding FX) Q3 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 22 Price increases more than offset raw material and supply chain impacts $ millions CAI: Price / Mix 68 Inflation (44) SEM: Price / Mix 41 Inflation (26) Net Price Benefit 39 Wage and Energy Inflation (14) Clariant Color Integration Synergies 6 Incentives, Other Employee Costs 14 FX (11) Q3 2022 $137   Adjusted Q3 2021 $ 142 Demand (39) Q3 2022 SEGMENT PERFORMANCE 23 CAI $587 $566 Sales $93 $93 SEM Pro Forma $326 $319 Sales $70 $62 (+ 4% excluding FX) - 4% - 2% (+ 5% excluding FX) Flat (+ 7% excluding FX) - 11% (- 7% excluding FX) $500 $585 $2.60 $2.95 FULL YEAR 2022 GUIDANCE 24 Sales Adjusted EBITDA $3,375 $3,635 Adjusted EPS (in millions) (in millions) 25 SUMMARY • Executed the plans we laid out earlier this year • Completed the Dyneema acquisition and Distribution divestiture amid challenging market conditions • Paid down debt and expect to finish the year modestly levered at 3.1x net debt to 2022 pro forma adjusted EBITDA • Expect $200 million of free cash flow in 2022 • Entering an economic slowdown with a portfolio that is better positioned than ever before • Updated our EPS guidance to $2.60 from continuing operations APPENDIX Performance Additives Pigments TiO2 Dyestuffs 3%Polyethylene 12% Nylon Polypropylene Other Raw 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 27 • From Q2 to Q3, we have seen a 7-10% sequential decline in certain hydrocarbon-based raw materials • Other raw materials such as performance additives and pigments have shown moderate inflation sequentially from Q2 to Q3 Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Avient Protective Materials SEGMENT DATA U.S. & Canada Latin America 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 21% Building and END MARKET REVENUE (1) Total company adjusted EBITDA of $585M includes corporate costs.

KEY CHARACTERISTICS • Globally harmonized formulations are manufactured at four ISO 13485 certified medical sites, providing global consistency and increased security of supply • Documented change control available • A range of standard colors eliminates color matching to expedite development time • The portfolio includes compliant colors for use in: - Needle hub applications: ISO 6009 - Ophthalmic container closures (American Academy of Ophthalmology) REGULATORY SUPPORT • A library of pre-tested raw materials including: - ISO 10993-1 and USP biological evaluation - European Pharmacopeia 3.1.3/3.1.5 (polyolefin) - USP (polyethylene) - ICH Q3D elemental impurities • Registered Drug Master File (Type III) and/or Device Master File • Food contact established with FDA/EU* HEALTHCARE APPLICATIONS • Medical devices such as catheters, surgical and dental instruments, and drug delivery devices • Pharmaceutical packaging including vials and bottles • Diagnostics for blood analysis or In Vitro Diagnostics (IVD) PRODUCT BULLETIN & COLOR CARD * FDA/EU compliance information available upon request; exceptions may occur Color Pantone Reference PE Base PP Base Transparent PP Base PEBA Base PC Base Transparent PC Base* ABS Base* White — PE0M176031 PP0M176045 ** AH0M415001 NC0M176058 ** SB0M665206 Yellow 102C PE1M176076 PP1M176060 PP1M176062 AH1M415002 NC1M176058 NC1M176059 SB1M664958 Orange 158C PE2M176044 PP2M176046 ** ** NC2M176044 NC2M664912 SB2M664939 Red 199C PE3M176131 PP3M176111 PP3M176113 AH3M415002 NC3M176116 NC3M176122 SB3M665037 Pink 196C PE3M176130 PP3M176109 ** AH3M415001 NC3M176117 NC3M665052 SB3M665039 Violet 2593C PE4M176023 PP4M176036 PP4M176039 AH4M415001 NC4M176038 NC4M176044 SB4M664978 Light Blue 292C PE5M176155 PP5M176169 ** AH5M415003 NC5M176142 ** SB5M665402 Mid Blue 285C PE5M176154 PP5M176171 PP5M176175 AH5M415002 NC5M176143 NC5M176146 SB5M665404 Dark Blue 288C PE5M176153 PP5M176173 ** ** NC5M176144 ** SB5M665406 Light Green 346C PE6M176128 PP6M176111 ** ** NC6M176118 ** SB6M665070 Bluish Green 3145C PE6M176126 PP6M176115 ** ** NC6M176119 ** SB6M665068 Medium Green 348C PE6M176127 PP6M176113 PP6M176118 AH6M415001 NC6M176120 NC6M176121 SB6M665072 Dark Gray 425C PE7M176066 PP7M176091 PP7M176094 ** NC7M176124 ** SB7M665297 Mid Gray Cool Gray 5C PE7M176067 PP7M176089 ** AH7M415001 NC7M176125 NC7M665175 SB7M665295 Beige 7502C PE8M176048 PP8M176058 ** ** NC8M176058 ** SB8M664871 Brown 463C/731C PE8M176049 PP8M176060 ** ** NC8M176059 ** SB8M664869 Black Black C PL9M176008 PP9M176017 ** ** NC9M176008 NC9M176009 SB9M664896 Colors may vary from actual color shown.

© 2019, All Right Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 LED LIGHT MANUFACTURER H E A T E X C H A N G E R F O R A N E L E C T R O N I C C I R C U I T B O A R D • Looking to replace aluminum • Reduce corrosion • Light weighting • Eliminated the effects of corrosion • Provided a lightweight alternative to aluminium • Redesigned the part for easier processing and further weight reduction • Enabled the customer to take a new, innovative product in to the market Therma-Tech™ Thermally Conductive Formulation KEY REQUIREMENTS WHY AVIENT?

HYPODERMIC NEEDLE MANUFACTURER N E E D L E H U B , C O V E R A N D S H I E L D • Compliance to ISO 6009 color coding for single use hypodermic needle • Biocompatibility of all component materials • Good mechanical and visual properties after sterilization (e.g.

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CLEVELAND – October 13, 2015 – PolyOne Corporation (NYSE: POL) a premier provider of specialized polymer materials, services and solutions, will h

Caption: Avient expands reSound™ TPE portfolio with a grade formulated using post-consumer recycled content that received No Objection Letter from U

EUROPEAN CABLE MANUFACTURER S E M I - T I G H T B U F F E R F O R I N D O O R D U P L E X C A B L E S • Low shrinkage for connectorization • Easy to strip for efficient installation • Good kink resistance • Resistance to chemicals and filling compounds • Provided an alternative solution, with improved performance, compared to PA12 and PBT materials on the market • Reduced shrinkage and improved strippability for easier installation • Reduced smoke production, improving overall fire performance • Increased processing speeds, reducing overall manufacturing cost ECCOH™ 6151 Formulation KEY REQUIREMENTS WHY AVIENT?

GLOBAL SMALL APPLIANCE BRAND V A C U U M C L E A N E R H A N D L E • Comply with flame retardant ratings of UL 94 V-0 at 0.8mm and GWIT 775oC / GWFI 850oC • Pass ball pressure at 75oC • Deliver stable static resistivity of E9-11 • Matched color to a specified black103 • Pass tests for battery runaway, drop at 1m, static load, and fatigue life • Provided a custom formulation with a good balance of performance and aesthetics • Guided the molder on how to properly measure the surface resistance of the part and the fixture specifications • Had excellent service with fast turnaround of samples and strong ADTS support to ensure smooth processability Stat-Tech Static Dissipative & Electrically Conductive Formulations KEY REQUIREMENTS WHY AVIENT?

INJECTION MOLDER T O U C H S C R E E N S U R F A C E • Provide antimicrobial protection with strong log reduction (gram-negative / gram-positive efficacy) using globally available and cost-effective active ingredients • Incorporate a compatible recycled base resin • Utilize recyclate with no haze or discoloration (yellowing) of product, even with long-term heat aging • Maintain visual clarity while using antimicrobial raw materials with additional functional additives • Offered expertise in antimicrobial solutions, application development, and versatile product forms • Provided non-public health claims and reduced material use with recycled polycarbonate • Delivered strong efficacy >Log 2 against gram- negative and gram-positive bacteria • Supported a safe, hygienic environment while maintaining clarity and performance using a masterbatch with recycled content Cesa WithStand SX Low Haze Antimicrobial Additives KEY REQUIREMENTS WHY AVIENT?