Outdoor High Performance) 8 18% 3 Growth in Asia / LATAM 6 3% 2 Other 100 19% 5 Sub-total $1,327 14% $146 Outdoor High Performance Impact (5) (3) Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 5 Incentives, Other Employee Costs 8 FX (28) (5) Q1 2022 $1,294 11% $136 Q1 2022 SALES AND OPERATING INCOME (TOTAL COMPANY) 6 Sales Growth Rate Operating Income$ millions EBITDA Q1 EBITDA BRIDGE 7 Price increases more than offset raw material and supply chain impacts Q1 2021 $ 161 Demand (23) $ millions CAI: Price / Mix 77 Inflation (54) SEM: Price / Mix 41 Inflation (26) Distribution: Price / Mix 84 Inflation (82) Net Price Benefit 40 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 5 Incentives, Other Employee Costs 8 FX (5) Q1 2022 $ 171 China Lockdowns / Russia Impact $ (7) Transportation (7) Outdoor High Performance (3) Q1 EPS BRIDGE 8 Q1 2021 - Adjusted EPS 0.89$ CAI 0.08 Specialty Engineered Materials 0.06 Distribution 0.00 Corporate Costs 0.02 F/X (0.04) Segment OI 0.12 Tax Rate (0.02) Q1 2022 - Adjusted EPS 0.99$ 10 15x stronger than steel Reduces weight by 30% vs. other solutions Well-maintained global asset base poised to serve growing demand • Purchase price of $1.48B represents 11.4x multiple of 2022 EBITDA • Acquisition will expand Avient’s composites and fiber portfolio with Dyneema®, the World’s Strongest Fiber™ • $415M sales and 30%+ EBITDA margins; Immediately accretive to pro forma 2022 EPS, adding $0.35 • 1,300 patents globally, ~50% of sales patent protected • 1,000+ employees across global production network and dedicated technology centers • Composites platform will increase from $261M to $680M in revenue and from $49M to $180M in EBITDA Indicates Dyneema® location $175M (42%) $65M (16%) $175M (42%) 2022E Sales By Region ($M) (1) $0.35 EPS excludes intangible amortization (2) Based on 2022 expected results (1) (2) (2) FIT WITH FOUR PILLAR STRATEGY 11 Specialization • Innovation-led organization with tremendous intellectual property value in trademarks, patents and “know-how” • Deep history of application development and premium, leading brand with the World’s Strongest FiberTM Globalization • Global customer base with an established presence across all major geographic regions • Global technology centers complement existing Composites applications and expertise Operational Excellence • Best-in-class safety performance • Well-run and maintained asset base fit to serve future growth • Highly effective and reliable supply chain with emphasis on optimizing service to customers Commercial Excellence • Deep customer relationships extend across the value chain and drive ability to grow • Offer a full suite of services with an active role in design, development and commercialization People Experienced and talented associates with a passion for safety, specialization and winning DYNEEMA® OVERVIEW K E Y I N D U S T R I E S PERSONAL PROTECTION Military • Law Enforcement • First Responders Body Armor • Helmets • Vehicle Protection $215M MARINE & SUSTAINABLE INFRASTRUCTURE Towing / Mooring • Aquaculture • Floating Wind • Offshore Cranes $130M CONSUMER Consumer • Outdoor High Performance • Safety Equipment $70M 12 Figures reflect 2022 expected sales MIFOverview Competition Valuechain & Go-to-market Strategy Innovation Financials TECHNOLOGY 13 1,200 1,300 2,500 Avient Dyneema Combined Patents • True specialty business – the World’s Strongest Fiber™ • Deep history of application development with customers, strongest in the industry • The only UHMwPE (ultra-high molecular weight polyethylene) fiber producer that is backward integrated o Provides innovation advantage through control of all steps of the process • Complementary with our existing reinforced film expertise (PolyStrand) and engineered fiber presences (Fiber-Line) WINNING PROPERTIES Ultra high strength vs. weight Highly flexible Floats on water Chemically inert; no smell/taste and non-toxic High resistance to UV radiation Self-lubricating, with low friction One-of-a-kind technology ® FORMULATION PROCESS 14 • Like Avient, Dyneema® offers similar core competencies around formulation and material science • Technology that combines polymers and fibers to provide specialized, high performing solutions for customers • Design capabilities ensure that applications are highly customized for the specified end use DYNEEMA® IN THE VALUE CHAIN 15 UHMwPE Fiber / Tapes Military Personnel, Law Enforcement Heavy Marine, Offshore Wind Energy and Mooring, Aquaculture Outdoor, Footwear, Apparel, Inflatables • Material Science • Formulation • Service INTERMEDIATE MANUFACTURING (CUSTOMERS) OEM / APPLICATION DEMAND TRENDS 16 • Military spending and near-term demand for higher performing personal protection products (like Dyneema®) expected to increase o European NATO members annual defense spend expected to increase by up to 20%(1) o Accelerated launch of next generation technology in North America • Policy-driven demand for sustainable energy; growth in floating offshore wind farms which require advanced, durable technology o Offshore wind expected to grow at a CAGR of 32% with the level of annual installations quadrupling over the next five years(2) • Continued investment in aquaculture as a sustainable food source(3) • Strong demand in outdoor high performance space across niche consumer applications aligns with 10% growth assumption for Avient’s Composites portfolio Sources: (1) “Funding NATO”, NATO.int (April 1, 2022) (2) “Global Wind Report 2021”, Global Wind Energy Council (3) “Aquaculture Supports a Sustainable Earth”, NOAA Fisheries 17 A L I G N M E N T W I T H S U S T A I N A B I L I T Y G O A L S PRODUCTS AVIENT’S EXISTING COMPOSITES PORTFOLIO D I V E R S E C A P A B I L I T I E S A N D S O L U T I O N S S E R V I N G M A N U F A C T U R E R S A N D O E M S LFT Tapes Laminates/Panels Shapes Pultrusion Engineered Fibers 18 AVIENT’S COMPOSITES PORTFOLIO SALES AND EBITDA 19 $74 $84 $216 $212 $261 $5 $10 $32 $41 $49 $180 0 50 100 150 200 $- $50 $100 $150 $200 $250 $300 $350 $400 $450 $500 $550 $600 $650 $700 $750 2017 2018 2019 2020 2021 2022E $680 • Dyneema® acquisition will further improve Composites EBITDA margins to 26% • Dyneema® will complement our existing portfolio with deep formulation expertise, innovative culture and global commercial presence • Composites will continue to be a key growth driver to deliver future revenue growth in excess of GDP (1) Pro forma for the acquisition of Dyneema® DISTRIBUTION DIVESTITURE CONSIDERATIONS DISTRIBUTION HIGHLIGHTS 21 $21 $57 $69 $94 $105 0 50 100 150 2006 2011 2016 2021 2022E • Leading North American Distribution business with longstanding blue-chip supplier and customer relationships • Commercial excellence and regulatory knowledge have grown healthcare portfolio to over 25% of sales and positioned business for long-term growth • Highly specialized portfolio of engineered polymers along with sustainable solution offerings • Leading digital capabilities through Avient Now, allowing enhanced visibility and 24/7 interface with customers • 98% free cash flow conversion drives greater than 30% after-tax return on invested capital (ROIC) • Potential divestiture allows us to remain modestly leveraged with net debt to adjusted EBITDA expected to be 2.9x and positions us for further specialty growth in the future EBITDA (in $M) DYNEEMA® TRANSACTION OVERVIEW 22 - $1.48B net purchase price - Represents 11.4x expected 2022 EBITDA - Committed financing in place - Permanent financing to be combination of available cash on-hand, new Senior Unsecured Notes, new Senior Secured Term Loan - Potential proceeds from Distribution divestment could be used to pay down near-term maturing debt - Closing expected in second half of 2022, subject to regulatory approvals and certain customary closing conditions Transaction Value Financing Closing Conditions / Timing CAPITAL STRUCTURE / LEVERAGE 23 • Financing commitments secured from Morgan Stanley and J.P. Morgan • New Senior Secured Term Loan B and new Senior Unsecured Notes • Potential proceeds from sale of Distribution business modeled to pay off 5.25% senior notes due 2023 and Term Loan • Acquisition aligned with Avient’s track record of disciplined capital allocation policy • Existing dividend policy maintained, focus on deleveraging in the near term (1) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution, including repayment of senior notes due 2023 and Term Loan Cash and Cash Equivalents 595$ Senior Secured Term Loan due 2026 605$ New Senior Secured Term Loan B 500 Total Senior Secured Debt 1,105$ Senior Unsecured Notes due 2025 650$ New Senior Unsecured Notes 740 Total Senior Unsecured Debt 1,390$ Total Debt 2,495$ Net Debt 1,900$ 2022 Pro forma Adjusted EBITDA 660$ Net Debt / Adjusted EBITDA 2.9x Pro Forma Capitalization (2022 estimates, all figures in $M) TWO-YEAR LEVERAGE GOAL 24 3.5x 2.7x 1.7x 2.9x 2.5x 2.2x 2019PF 2020PF 2022E 2022PF 2023E 2024E Dyneema® AcquisitionClariant Color Acquisition (1) Pro forma for the acquisition of the Clariant Color business (2) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution, including repayment of senior notes due 2023 and Term Loan (1) (1) (2) 25 PRO FORMA MODELING 2022E Pro Forma Pro Forma ($M) w/ Dyneema w/Sale Revenue 5,100$ 415$ 5,515$ (1,775)$ 3,740$ Adjusted EBITDA 635 130 765 (105) 660 EBITDA % 12% 31% 14% 6% 18% Pro Forma EPS (Adjusted) 3.50$ 0.00$ 3.50$ (0.56)$ 2.94$ Pro Forma EPS (excl. amortization) 3.96$ 0.35$ 4.31$ (0.56)$ 3.75$ Leverage (12/31/2022E) Net Debt / Adjusted EBITDA 1.7x 3.5x 2.9x Avient Dyneema Distribution® ® OUR SPECIALTY JOURNEY ACQUISITION HISTORY 27 Commercial Resources(1) Operating Margins 259 360 $40 $122 9% 21% Established Acquisitions (> 7 years) + 39% + 210% + 1200 bps (1) Commercial Resources include associate headcount in R&D / Technical, Marketing and Sales CLARIANT COLOR ACQUISITION 28 $133 $205 2019PF 2021 28 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.1x 2019PF 2021 2021 w/ Full Synergies • 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 • $54 million of synergies realized in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. Purchase price multiple rapidly declining on strength of business and synergy capture (1) Financial information is pro forma to include a full year of Clariant Color acquisition 11.9% 16.2% 2019PF 2021 EBITDA Margins SPECIALTY TRANSFORMATION 7% 46% 66% 86% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021 2022 PF % o f A dj us te d EB IT D A(1 ) JVs Distribution Performance Products & Solutions Specialty (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution (2) 29 12% 18% 16% 15% 15% 14% 14% 28% 28% 26% 25% 22% 21% 19% 16% 12% 9% 9% Av ie nt T od ay Av ie nt P F AV Y PP G KW FU PM C E AL B FM C AS EC EM XL U SC BN U VR Median: 21%Median: 15% 2022 EBITDA MARGINS VS.

Toluca, Mexico 12. Ripon, Wisconsin 12. ITEM 12.

Morgan • New Senior Secured Term Loan B and new Senior Unsecured Notes • Potential proceeds from sale of Distribution business modeled to pay off 5.25% senior notes due 2023 and Term Loan • Acquisition aligned with Avient’s track record of disciplined capital allocation policy • Existing dividend policy maintained, focus on deleveraging in the near term (1) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution, including repayment of senior notes due 2023 and Term Loan Cash and Cash Equivalents 595$ Senior Secured Term Loan due 2026 605$ New Senior Secured Term Loan B 500 Total Senior Secured Debt 1,105$ Senior Unsecured Notes due 2025 650$ New Senior Unsecured Notes 740 Total Senior Unsecured Debt 1,390$ Total Debt 2,495$ Net Debt 1,900$ 2022 Pro forma Adjusted EBITDA 660$ Net Debt / Adjusted EBITDA 2.9x Pro Forma Capitalization (2022 estimates, all figures in $M) TWO-YEAR LEVERAGE GOAL 33 3.5x 2.7x 1.7x 2.9x 2.5x 2.2x 2019PF 2020PF 2022E 2022PF 2023E 2024E Dyneema® AcquisitionClariant Color Acquisition (1) Pro forma for the acquisition of the Clariant Color business (2) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution, including repayment of senior notes due 2023 and Term Loan (1) (1) (2) 34 PRO FORMA MODELING 2022E Pro Forma Pro Forma ($M) w/ Dyneema w/Sale Revenue 5,100$ 415$ 5,515$ (1,775)$ 3,740$ Adjusted EBITDA 635 130 765 (105) 660 EBITDA % 12% 31% 14% 6% 18% Pro Forma EPS (Adjusted) 3.50$ 0.00$ 3.50$ (0.56)$ 2.94$ Pro Forma EPS (excl. amortization) 3.96$ 0.35$ 4.31$ (0.56)$ 3.75$ Leverage (12/31/2022E) Net Debt / Adjusted EBITDA 1.7x 3.5x 2.9x Avient Dyneema Distribution® ® OUR SPECIALTY JOURNEY ACQUISITION HISTORY 36 Commercial Resources(1) Operating Margins 259 360 $40 $122 Established Acquisitions (> 7 years) + 39% + 210% + 1200 bps (1) Commercial Resources include associate headcount in R&D / Technical, Marketing and Sales CLARIANT COLOR ACQUISITION 37 $133 $205 2019PF 2021 37 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.1x 2019PF 2021 2021 w/ Full Synergies • 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 • $54 million of synergies realized in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. Source: Peer data per Bloomberg market data as of April 21, 2022 86 82 86 86 84 78 77 89 86 81 80 76 76 76 67 67 11 (12) P PM AV VR 18% 16% 15% 15% 14% 14% 28% 28% 26% 22% 21% 19% 9% 9% T od ay P AV PM C VR Median: 21%Median: 15% 2022 EBITDA MARGINS VS. We expect this expansion to continue as we execute our strategy, increase margins and consistently grow earnings in excess of the market. 46 Avient reflects 2022 estimated EBITDA of $635M Past Avient valuations reflect forward 12 months EBITDA at December 31 of the respective years.

See Note 12, Employee Benefit Plans, for further discussion on our mark-to-market adjustment. See Note 12, Employee Benefit Plans, for further discussion on our mark-to-market adjustment. Refer to Note 12, Employee Benefit Plans, for more information.

F X ) -10% -11% -3% -12% 10 Avient ex. Chamber of Commerce; BEAD refers to Broadband Equity, Access, and Deployment Program 12 • Fiscal Year 2024 U.S. Avient Specialty Other Specialty / 2023E(%) 32 79 87 83 81 76 73 90 79 77 76 73 69 60 22 MULTIPLE EXPANSION Avient Specialty Other Specialty / Note: Avient reflects 2023 adjusted EBITDA guidance of $530M and closing share price of $38.51.

With long fiber reinforced solutions, the individual reinforcing fibers within each pellet are aligned parallel to each other and are exactly as long (usually 1/2 inch or 12 mm) as the pellet due to the unidirectional orientation of the fiber prior to pellet chopping. 0.5 in/12 mm long 

Steel – Static 0.25 0.46 0.18 0.15 0.12 0.19 0.11 0.14 0.13 0.24 0.17 0.17 Impact Notched Izod Impact (23°C, 3.18 mm, Injection Molded) J/m ASTM D256A 41 64(6) 110 107 107 70 80 37 37 75 – 69 Thermal Properties Heat Deflection Temperature ASTM D648 0.45 MPa °C 215(6) – 250 215 216 184 152 151(6) 153(6) 218(6) – – 1.8 MPa °C 65(6) 239(7) 244(6) 210 210 75 94 81.1(6) 88 197(6) – 135(5) Electrical Properties Surface Resistivity ohms/sq ASTM D254 – – – 1.30x1012 1.9x1012 5.2x1012 – – – – – 1.0x109 Dielectric Strength (Short Time) kV/mm – – 8.5 – – – – – – – – – Flammability Flame Rating Class UL 94 HB – – HB HB HB – HB – – – – LubriOne™ Internally Lubricated Formulations NOTES (1) Type I, 5.1mm/min (2) Type I, 21.3 mm/min (3) Type I, 50 mm/min (4) Type I, 5.1mm/min, Break (5) 3.2 mm thick, Unannealed (6) 6.35 mm thick, Unannealed (7) 3.2 mm thick, Annealed PRODUCT DESCRIPTION UNITS TEST METHOD 5024 RS HI 5021 RS S1 5021 RS X2 5019 X1 LB6700- 5001 RS AF Black NN- 000/01M Black SO REC LB6600- 5030 RS Grey LB3300- 5010 RS LB3300- 5005 RS REC LB3220- 5001 RS C Natural X1 5010 GP Grey 5006 RS PE 5004 RS PE LB4200- 5022 Black LB4200- 5023 Base Polymer PA 6 PA6/PA66 PA66 PBT PC PKE POM Lubricant UHMWPE1 UHMWPE UHMWPE UHMWPE UHMWPE MoS22 Graphite UHMWPE UHMWPE UHMWPE Graphite UHMWPE UHMWPE MoS2 UHMWPE Filler type GF10 GF30 GF30 GF50 GF50 Unfilled GF33 GF20 MI20 GF10 Unfilled GF20 GF30 Unfilled Unfilled General Properties Specific Gravity g/cm3 ISO 1183 1.18 1.35 1.39 1.55 1.58 1.14 1.44 1.42 1.46 1.23 1.26 1.34 1.43 1.4 1.35 Mechanical Properties Tensile Modulus (23°C) MPa ISO 527-1 4250 9500 9000 15500 16600 3500 10600 6300 3330 4000 1630 5300 9250 2470 2150 Tensile Strength (Yield, 23°C) MPa ISO-527-2 97 150 160 205 200 85 164 102 55 60 60 108 99.1 55 50 Tensile Elongation (Break, 23°C) % ISO-527-2 12 2.5 3 2.7 2.4 3.4 2.0 4.2 8 2.5 46 3.7 1.5 11 11 Flexural Strength (23°C) MPa ISO 178 103 – – 285 265 108 215 127 78 85 38 155 117 73 68 Flexural Modulus (23°C) MPa ISO 178 3250 – – 12400 11100 2690 9000 4700 3000 3100 1380 4600 5450 2210 2070 Impact Charpy Notched Impact Strength (23°C, Injection Molded) kJ/m^2 ISO 179 14 12 10 15 10 3 6 7.7 4.3 12 15 10 7.6 8 5 Charpy Unnotched Impact Strength (23°C, Injection Molded) kJ/m^2 ISO 179 82 55 61 75 60 65 50 47 69 - NB 63 36 NB NB Thermal Properties Deflection Temperature Under Load 1.8 Mpa, Unannealed °C ISO 75-2/A 107 – – 204 – 73 235 – – – 90 210 204 86 80 Cofficient of Friction (CoF) & Wear Rate CoF vs. Steel - Static ASTM D1894 – 0.237 0.183 – – – – – – – – – – – – CoF (20min 0.2 m/s) g/min ASTM G77 – – – – – – – – – – – 0.79 0.79 – – Wear Rate (20h, 1m/s) g/min ASTM G77 – – – – – – – – – – – 1.02E-05 1.89E-05 – – Wear Rate (PV=2500) (in3-min/ ft-lb-hr) *10-10 ASTM D3702 – 125 175 – – – – – – – – – – – – Flammability Flame Rating UL 94 – – – – – – – HB HB V2 @ 3mm – – – – – LubriOne™ Internally Lubricated Formulations - PTFE-Free NOTES *ASTM D3702 (PV=2500, against 1018-steel) 1UHMWPE - ultra high molecular weight polyethylene 2MoS2 - molybdenum disulphide To learn more about LubriOne™ internally lubricated solutions, contact Avient at +1.844.4AVIENT (1.844.428.4368) www.avient.com EXPLORE WEAR RESISTANCE LubriOne internally lubricated thermoplastic polymers have been specifically designed to improve tribological performance in components, offering low coefficient of friction and improved wear–resistance properties.

GUIDANCE 12 15.4% 15.9% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE 13 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs. expectations: LATAM • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2023 SEQUENTIAL SALES BY REGION Q 2 2 0 2 3 v s . 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 19 Avient Confidential 20 • 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 20 …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 21 AP P EN D IX 24 Performance Additives 16% Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer 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 Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 26 3 3 4 4 4 5 5 7 7 9 10 FREE CASH FLOW CONVERSION 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 (%) 27 79 89 83 83 78 75 90 81 76 72 68 63 53 11 Avient Specialty Other Specialty / MULTIPLE EXPANSION Note: Avient reflects 2023 adjusted EBITDA guidance of $525M and closing share price of $37.07.

Shenzhen, China 12. Refer to Note 12, Commitments and Contingencies, for further information. ITEM 12.

Cergy, France 12. Seabrook, Texas Jurong, Singapore (3) 12. Orangeville, Ontario, Canada 12.