COLOR PVC PE/PP/PUR PS ABS ACETAL PBT NYLON PC/PES OM0001 OC0UFB White 200+ 280+ 260+ 280+ 200+ 300+ 280+ 300+ OM0005 OC0UFC Bright White 200+ 260 260+ 260 200+ 300+ NS 300+ OM0330 OC0UFD Polar White 200+ 280+ 260+ 280+ 200+ 300+ 280+ 300+ OM0332 OC0SAD Coconut 200+ 280+ 260+ 280+ 200+ 300+ 280+ 300+ OM1275 OC0UFF Magnolia **200+ 280+ 260+ 280+ 200+ 300+ 280+ 300+ OM1293 OC0SAE Vanilla **200+ 280+ 260+ 280+ 200+ 300+ 280+ 300+ OM1625 OC1SAE Sunflower Yellow 200+ 280 260 260 200+ 280 NS 280 OM1637 OC1SAF Daffodil Yellow 200 240 220 NS NS NS NS NS OM1690 OC1UFD Citrus # *200+ NS 260 250 NS 280+ NS 280+ OM1693 OC1UFE Banana *200+ NS 280+ 280+ NS 280+ NS 280+ OM1696 OC1SAG Jasmine 200+ 280 260 260 200+ 280+ NS 280+ OM1700 OC1UFG Canary Yellow 200+ 280 260 260 200+ 280 NS 280 OM1702 OC1SAH Marigold # *200+ NS 260+ 260+ NS 300 NS 300 OM1704 OC8SAF Ivory **200+ 280+ 260+ 280+ 200+ 300+ 280+ 300+ OM1707 OC8SAG Cream 200+ 280+ 260+ 260+ 200+ 300+ 280+ 300+ OM1751 N/A Sol Yellow 200+ 260 260 280 200+ 250+ NS 280 OM1753 N/A Sherbert Lemon 200 240 220 NS NS NS NS NS OM1831 N/A Linen 200+ 280+ 260+ 280+ 200+ 265 NS NS OM1832 N/A Buttermilk 200+ 280+ 260+ 280+ 200+ NS NS NS OM1834 N/A Chick 200+ 240 220 NS NS NS NS NS OM1839 N/A Custard 200+ 280+ 260+ 280+ 200+ NS NS NS OM1845 N/A Yolk 200+ 280+ 260+ 280+ 200+ 265 NS NS OM2239 OC2UFB Seville Orange 200+ 280 260 260 200+ NS NS NS OM2243 OC2SAE Mandarin Orange 200 240 220 NS NS NS NS NS OM2250 OC2SAF Pumpkin 200+ 280 260 240 200+ NS NS NS OM2252 OC2SAG Nectarine # *200+ NS 280+ 280+ NS 300 NS 300 OM2291 N/A Carrot 200+ 280 260 280 200+ NS NS NS OM3223 OC3SAE Strawberry Red 200+ 280 260 260 200+ NS NS NS OM3364 OC3SAF Rose Pink 200+ 280 260 260 200+ NS NS NS OM3513 OC2SAH Flesh Pink **200+ 280 260 260 200+ NS NS NS OM3788 OC3SAH Cherry Red 200+ 280 260 260 200+ NS NS NS OM3801 OC3SAI Pastel Pink 200+ 280 260 260 200+ NS NS NS OM3820 OC3SAJ Flame Red *200 NS 280+ 280+ NS 280+ 280+ 280+ OM3849 OC3SAK Lobster Red 200 260 220 NS NS NS NS NS OM3850 OC3UFJ Tomato Red 200+ 280 260 260 200+ 280 NS 280 OM3853 OC3SAL Fuchsia 200 260 200 NS NS NS NS NS OM3856 OC3SAM Admiral Red # *200+ NS 260+ 260+ NS 300 NS 300 OM3861 OC3UFM Cardinal Red 200+ 280 260 260 200+ 280 NS 280 OM3864 OC3SAN Fire Engine Red # *200+ NS 260+ 260 NS 300 NS 300 OM3872 OC3SAP Rocket Red *200 NS 280+ 280+ 280+ 280+ NS 280+ OM3879 OC3SAQ Raspberry 200 260 200 NS NS NS NS NS OM3947 N/A Brilliant Red 200+ 280 260 260 200+ 250+ NS NS OM3951 N/A Poppy Red 200 260 220 NS NS NS NS NS OM3955 N/A Valentine Red 200+ 280 260 260 200+ 250+ NS NS OM3958 N/A Bubblegum Pink 200+ 280 260 260 200+ 250+ NS NS OM33053 N/A Ruby 200 240 220 NS NS NS NS NS OM4043 OC3SAR Burgundy 200 230 200 NS 200 NS NS NS OM4204 OC4SAA Mulberry 200+ 280 260 260 200 280 NS 280 OM4219 N/A Cerise 200+ 280 260 260 200+ 250+ NS NS TEMPERATURE CONVERSION TABLE °C 200 220 240 260 280 300 °F 392 428 464 500 536 572 NOTES * Suitable for use in all PVC except plasticized PVC ** Suitable for use in all PVC except tin stabilized PVC RECOMMENDED MAXIMUM PROCESSING TEMPERATURES FOR OMNICOLOR IN SELECTED POLYMERS IN °C UK COLOR NO. COLOR PVC PE/PP/PUR PS ABS ACETAL PBT NYLON PC/PES OM55488TR N/A TR Amethyst # *200+ NS 260+ 260+ NS 265+ NS 300 OM89050TR N/A TR Brown NS NS 260+ 280+ NS 265 NS 300 OM0279HT N/A Diamond White 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM0447HT N/A Cumulus 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM1739HT N/A Melon Yellow # *200+ NS 260+ 260+ NS 265 300+ 300+ OM1740HT N/A Pineapple # *200+ NS NS 260+ NS 265 300+ 300+ OM1829HT N/A Hornet # *200+ NS NS 260+ NS 265 300+ 300+ OM2264HT N/A Fresh Orange # *200+ NS NS NS NS 265 300+ 300+ OM3930HT N/A Deep Red # *200+ NS 260+ 260+ NS 265 300+ 300+ OM3940HT N/A Sunset # *200+ NS NS NS NS 265 300+ 300+ OM4217HT N/A Claret # *200+ NS 260+ 260+ NS 265 300+ 300+ OM33049HT N/A Lava # *200+ NS NS NS NS 265 300 300 OM33050HT N/A Poinsettia # *200+ NS NS NS NS 265 300 300 OM66148HT N/A Mid Green 200+ 280+ 260+ 260+ 200+ 265 300+ 300+ OM66294HT N/A Forest Green # NS NS NS NS NS 265 280+ 300+ OM66295HT N/A Astro # *200+ NS 260+ 280+ NS 265 280+ 300+ OM77323HT N/A Dolphin 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM77324HT N/A Slate 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM0038 N/A Value White 200+ 260+ 260+ 280+ 200+ 265 280+ 300+ OM0246 N/A Stone Effect 200+ 260 280 280+ NS 265 280 300 OM0299 N/A Pearl 200+ 260+ 260+ 280+ 200+ 265 280 300 OM0589 N/A Metallic Sand 200+ 280 260+ 280+ 200+ 265 300 300 OM0590 N/A Autumn Gold 200+ 280 260+ 260 200+ 255 NS NS OM0592 N/A Tropical Pearl 200+ 260 260 260 200+ 250 NS NS OM0593 N/A Inca Gold 200+ 280 260+ 280+ 200+ 250 280 280 OM0797TR N/A Sparkle 200+ NS 280 280 200 265 280 300 OM1339 N/A Value Yellow 200+ 280 280 280+ 200+ 265 280 300 OM5972 N/A Value Blue 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM9074 N/A Odyssey 200+ 280 260+ 280+ 200+ 265 300 300 OM33074 N/A Spanish Earth 200+ 280 260 260 200+ 250 NS NS OM33075 N/A Sunset Pearl 200+ 280 260 260 200+ 250 NS NS OM33100TR N/A Pink Sparkle NS NS 260 260 NS NS NS NS OM33111 N/A Value Red 200+ 240 220+ NS 200+ NS NS NS OM55559 N/A Soft Lilac 200+ 280 260 250 200+ 265 NS 280 OM55561 N/A Atlantic Pearl 200+ 280 260+ 280 200+ 265 280 280 OM55563 N/A Midnight Satin 200+ 280 260+ 280 200+ 265 200 280 OM55564 N/A Frost Bite 200+ 280 260 260 200+ 265 NS 280 OM55565 N/A Winter Wind 200+ 280 260+ 280+ 200+ 265 280 300 OM55566 N/A Mirage 200+ 280 260 260 200+ 265 NS 280 OM55567 N/A Purple Silk 200+ 260 250 250 200+ NS NS NS OM55666TR N/A Blue Sparkle NS NS 260+ 260+ NS 265 NS 280 OM55700TR N/A Violet Sparkle NS NS 260 260 NS 265 NS 300 OM66302 N/A Bottle Green 200+ 280+ 260+ 280+ 200+ 265 NS 300+ OM66344 N/A Arctic Moss 200+ 280 260+ 280+ 200+ 265 280 300 OM66345 N/A Grape 200+ 280 260+ 270 200+ 260 NS 280 OM66380 N/A Value Green 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM77450 N/A Value Grey **200+ 280+ 260+ 280+ 200+ 265 280+ 300+ NOTES * Suitable for use in all PVC except plasticized PVC ** Suitable for use in all PVC except tin stabilized PVC + Potential use at temperatures above those indicated NS Not suitable for use in polymer indicated # Contains dyestuff which will migrate from PE/PP and all other polyolefins OMNICOLOR™ COLOR CHART White UK OM0001 Stock US OC0UFB Sherbert Lemon UK OM1753 US Not Available Flame Red UK OM3820 Stock US OC3SAJ Cerise UK OM4219 US Not Available Bright White UK OM0005 Stock US OC0UFC Linen UK OM1831 US Not Available Lobster Red UK OM3849 Stock US OC3SAK Sky Blue UK OM5001 Stock US OC5UFB Polar White UK OM0330 Stock US OC0UFD Buttermilk UK OM1832 US Not Available Tomato Red UK OM3850 Stock US OC3UFJ Powder Blue UK OM5009 Stock US OC5SAD Coconut UK OM0332 Stock US OC0SAD Chick UK OM1834 US Not Available Fuchsia UK OM3853 US OC3SAL Mid Blue UK OM5011 Stock US OC5UFD Magnolia UK OM1275 Stock US OC0UFF Custard UK OM1839 US Not Available Admiral Red UK OM3856 US OC3SAM Royal Blue UK OM5027 Stock US OC5UFF Vanilla UK OM1293 Stock US OC0SAE Yolk UK OM1845 US Not Available Cardinal Red UK OM3861 Stock US OC3UFM Pale Blue UK OM5034 Stock US OC5SAF Sunflower Yellow UK OM1625 Stock US OC1SAE Seville Orange UK OM2239 Stock US OC2UFB Fire Engine Red UK OM3864 US OC3SAN Navy Blue UK OM5065 US OC5SAG Daffodil Yellow UK OM1637 Stock US OC1SAF Mandarin Orange UK OM2243 US OC2SAE Rocket Red UK OM3872 Stock US OC3SAP Ultra Blue UK OM5179 Stock US OC5UFI Citrus UK OM1690 Stock US OC1UFD Pumpkin UK OM2250 Stock US OC2SAF Raspberry UK OM3879 US OC3SAQ Pacific Blue UK OM5485 Stock US OC5UFJ Banana UK OM1693 Stock US OC1UFE Nectarine UK OM2252 Stock US OC2SAG Brilliant Red UK OM3947 Stock US Not Available Baby Blue UK OM5982 US OC5SAI Jasmine UK OM1696 US OC1SAG Carrot UK OM2291 US Not Available Poppy Red UK OM3951 US Not Available Purple UK OM55094 Stock US OC4UFB Canary Yellow UK OM1700 Stock US OC1UFG Strawberry Red UK OM3223 Stock US OC3SAE Valentine Red UK OM3955 US Not Available Ice Blue UK OM55157 US OC5UFS Marigold UK OM1702 US OC1SAH Rose Pink UK OM3364 US OC3SAF Bubblegum Pink UK OM3958 US Not Available Midnight Blue UK OM55160 US OC5SAH Ivory UK OM1704 Stock US OC8SAF Flesh Pink UK OM3513 US OC2SAH Ruby UK OM33053 US Not Available Cornflower Blue UK OM55162 Stock US OC5UFM Cream UK OM1707 US OC8SAG Cherry Red UK OM3788 US OC3SAH Burgundy UK OM4043 Stock US OC3SAR Sol Yellow UK OM1751 Stock US Not Available Pastel Pink UK OM3801 US OC3SAI Mulberry UK OM4204 Stock US OC4SAA Due to printing or monitor variations, color shown may vary from actual color.

AQUARIUS™ SB - FLUO VIOLET CONCENTRATE 12.

680.00 Black 2% Black 3C 680.01 Brown 6% 4625C 680.02 Red 15% 7621C 680.03 Orange 6% 1595C 680.04 Yellow 6% 605C 680.05 Green 6% 7732C 680.06 Blue 10% 7697C 680.07 Violet 15% 7665C 680.08 Grey 5% 7539C 680.09 White 12% 7499C * Recommended let down ratio addition rates.

Santiago, 3 Junio 2021 C ód ig o de V er ifi ca ci ón : 0 12 -2 10 6- 03 09 -1 14 2 012-2106-0309-1142 Documento incorpora Firma Electronica Avanzada Código de Verificación: cec_1c0abd-0 pagina 2 de 2 EDUARDO JAVIER DIEZ MORELLO 2021-06-03T10:28:54-0600 Santiago Firma Electrónica Notario 2021-06-04T10:37:47-0400

Mes de inicio: 10/2015 Mes de cierre ejercicio comercial: 12 DOMICILIO FISCAL - AFIP Vigencia de la presente constancia: 29-06-2021 a 29-07-2021 Hora 11:48:03 Verificador 102744316377 Los datos contenidos en la presente constancia deberán ser validados por el receptor de la misma en la página institucional de AFIP http://www.afip.gob.ar. http://www.afip.gob.ar/

By 2030, Avient will deliver cumulative annual revenue growth from our Sustainable Solutions portfolio of 8–12% with 2020 as a baseline.

COLOR RAL REFERENCE COLOR RAL REFERENCE 1015 Brown/12 6026 Green/14 1034 Yellow/14 6032 Green/20 1018 Yellow/19 7004 Grey/21 1003 Yellow/20 8025 Brown/14 3020 Red/15 9022 Pearl Grey/1 5005 Blue/35 9010 White/5 5000 Blue/36

APPLICATIONS • Electrical and electronic enclosures and housings • Junction boxes • Switches, connectors and plugs • Power outlet components • Covers and windows in E&E parts BENEFITS • Formulated without PTFE which is typically used as anti-drip agent • Non-halogen in accordance with the IEC 61249-2-21 standard • Achieves GWFI 960°C temperature (with max. 30 sec post combustion time) according to IEC 60695-2-12 • Can be combined with colors and other additives for added convenience and increased performance PRODUCT OVERVIEW Copyright © 2023, Avient Corporation.

V I S I O N PolyOne Corporation 4 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Specialization Commercial Excellence Operational Excellence Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions PolyOne Corporation 5 P O L Y O N E 2 0 1 7 R E V E N U E | $ 3 . 2 B I L L I O N Transportation 18% Industrial 16% Consumer 12% Packaging 11% Healthcare 11% Wire & Cable 9% Appliance 5% United States 59% Europe 14% Asia 10% Latin America 9% Canada 8% PolyOne Distribution 34% Performance Products & Solutions 21% Specialty Engineered Materials 19% Color Additives & Inks 26% Segment End Market Geography Building & Construction 12% Electrical & Electronics 6% 2009 2010 2011 2012 2013 2014 2015 2016* 2017* A D J U S T E D E P S E X P A N S I O N C O N S E C U T I V E Y E A R S PolyOne Corporation 6 8 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 *Pro Forma for sale of DSS E A R L Y Y E A R S D E F I N E D B Y S P E C I A L T Y M I X I M P R O V E M E N T PolyOne Corporation 7 2% 76% 2005 2017 $5M $280M + 25% + 33% Specialty OI % of Operating Income Consistently Deliver Double Digit Annual EPS Growth *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period PolyOne Corporation 8 2006 2017 2020 “Where we were” “Where we are” Platinum Vision ROIC* 5.0% 14.0% 15.0% Operating Income % of Sales Color, Additives & Inks 1.7% 15.5% 20%+ Specialty Engineered Materials 1.1% 12.5% 20%+ Performance Products & Solutions 5.5% 10.7% 12-14% Distribution 2.6% 6.3% 6.5-7.5% P R O O F O F P E R F O R M A N C E & P L A T I N U M V I S I O N 531 660130 149 504 607 2014 2017 R&D / Technical Marketing Sales I N V E S T M E N T I N COMMERCIAL RESOURCES D R I V I N G G R O W T H PolyOne Corporation 9 Increased commercial headcount Largest organic revenue growth since recession $2.9 $2.9 $3.2 2015 2016 2017 Revenue in billions of $ + 24% + 15% + 20% Total + 10% Organic + 7% Free Cash Flow (In millions) ROIC* PolyOne Corporation 10 $50 $116 $143 $0 $40 $80 $120 $160 $200 2012 2014 2016 2018 10.8% 11.3% 12.9% 14.0% 10.0% 11.0% 12.0% 13.0% 14.0% 15.0% 2012 2014 2016 2017 2020 Platinum Vision $200 - $220 F R E E C A S H F L O W A N D I M P R O V I N G R E T U R N S *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period 15.0% $767M R E T U R N I N G C A S H T O S H A R E H O L D E R S O V E R $ 9 5 0 M I L L I O N S I N C E 2 0 1 1 PolyOne Corporation 11 $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 2017 $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.58 $0.70 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Cumulative Share Repurchases (In millions) Increasing Annual Dividend Transformational Opportunity for Growth Through M&A Adjacent Opportunity for Growth Through New Product Pipeline Core Customization 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 12 Incremental development from existing base of technology New development adjacent to current technology New technology development outside of and with our current base Service adjacent markets and customers Create new markets, target new customer needs Service existing markets and customers Market Technical I N N O V A T I O N Non-Halogen Flame Retardants Barrier Technologies Fiber Colorants Advanced Composites Thermoplastic Elastomers Gordon Composites/ Polystrand – Composites GLS – Thermoplastic Elastomers ColorMatrix – Liquid Color & Additives I N N O V A T I O N P I P E L I N E PolyOne Corporation 13 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2015) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 8 6 8 2 2 36 5 10 13 10 4 6 7 Breakthrough Platform Derivative Number of Projects 33 17 20 15 5 90 Total Addressable Market ($ millions) - - $800 $1,400 $600 $2,800 F L A M E R E T A R D A N T P O L Y M E R S A D V A N C E D C O M P O S I T E S B A R R I E R M A T E R I A L S C O L O R A N T T E C H N O L O G I E S T H E R M O P L A S T I C E L A S T O M E R S A U N I Q U E C U S T O M E R E X P E R I E N C E Industrial Design IQ DESIGN LABS PolyOne Corporation 14 Launched in 2014, IQ Design Labs is our in-house industrial design team that focuses on material selection and processing expertise to help with problem solving, enabling our clients to develop higher performance products. T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y  Growing leadership position in attractive markets  Innovation, technology and service are differentiators  Capital management is a strength: Record-setting cash generation to continue for years  Expand ROIC while increasing invested capital  Proven acquisition strategy with robust pipeline  Commercial investments are fueling momentum and generating organic growth SEGMENT HIGHLIGHTS PolyOne Corporation 17 C O L O R , A D D I T I V E S & I N K S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 18 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants Packaging 27% Industrial 14% Textiles 12% Building & Construction 10% Wire & Cable 10% Transportation 8% Consumer 7% Healthcare 6% Electrical & Electronics 3% Appliance 3% Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 7 R E V E N U E | $ 8 9 3 M I L L I O N $4 $25 $104 $139 0.9% 5.5% 12.2% 15.5% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 16.0% 18.0% 20 30 40 50 60 70 80 90 100 110 120 130 140 150 2005 2009 2013 2017 PolyOne Corporation 19 Europe 32% United States 46% Asia 15% Canada 1% Mexico 4% Brazil 2% (in millions) S P E C I A L T Y E N G I N E E R E D M A T E R I A L S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 20 Engineered Formulations Advanced Composites Thermoplastic Elastomers Consumer 20% Transportation 19% Electrical & Electronics 15% Wire & Cable 13% Healthcare 11% Industrial 8% Packaging 7% Appliance 4% Building & Construction 3% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 7 R E V E N U E | $ 6 2 4 M I L L I O N PolyOne Corporation 21 $21 $57 $78 0.1% 5.1% 9.3% 12.5% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 20 30 40 50 60 70 80 90 2005 2009 2013 2017 Europe 28% United States 48% Asia 22% Canada 2% (in millions) P E R F O R M A N C E P R O D U C T S & S O L U T I O N S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 22 Specialty Vinyl Solutions Healthcare Formulations Smart Device Materials Flame Retardant Polymers Building & Construction 30% Industrial 18% Transportation 16% Wire & Cable 15%Appliance 7% Packaging 5% Consumer 5% Electrical & Electronics 3% Healthcare 1% Mexico 5% United States 77% Latin America 2% Canada 16% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S Operating Income & MarginRevenue by Region 2 0 1 7 R E V E N U E | $ 7 2 1 M I L L I O N $40 $33 $56 $77 4.6% 3.6% 7.2% 10.7% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 16.0% 0 10 20 30 40 50 60 70 80 90 100 2005 2009 2013 2017 PolyOne Corporation 23 (in millions) D I S T R I B U T I O N E N D M A R K E T S & S U P P L I E R S PolyOne Corporation 24 Transportation 23% Healthcare 22% Industrial 18% Consumer 15% Appliance 7% Electrical & Electronics 6% Building & Construction 4% Packaging 3% Wire & Cable 2% $20 $25 $63 $73 2.9% 4.0% 5.9% 6.3% 0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 15 25 35 45 55 65 75 2005 2009 2013 2017 Operating Income & Margin (in millions) 2017 Revenue | $1.2 Billion http://www.polyone.com/Pages/VariationRoot.aspx http://www.polyone.com/Pages/VariationRoot.aspx T A R G E T E N D M A R K E T S & A P P L I C A T I O N E X A M P L E S PolyOne Corporation 25 Thermally Conductive Technologies Chemical Resistant Technologies Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Technologies Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural Components Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Exterior / Interior Trim Braces & Brackets Fasteners Seals & Flaps Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components Oxygen Scavenger Technologies Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Technologies Antioxidant Technologies Density Modified Technologies Target End Markets… Packaging  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly Luxury Packaging GravitechTM Density Modified Polymers  Eliminate costs by increasing pigment density  Enhance color performance without altering form and formulation  Increase design capabilities by reducing weight and layer thickness Optimize Color Usage OnColorTM Super Concentrates  Inhibit microbial growth on polymer surfaces  Enhance value or products and devices  Highly versatile concentrate with the ability to be incorporated into a wide variety of products Combat Bacteria Formation WithStandTM Antimicrobial Technology  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios Medical Device Housings Chemically Resistant Engineered Polymers Color & Design Services  Greater control of color development and supply chain  Work across entire design process from concept to commercialization  Inspire creativity in the use of polymer materials, colors, and effects  Innovative brand differentiation  Faster development timelines Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance  ColorMatrix Fiber Colorant Solutions  Proprietary advanced liquid color formulations and equipment enable greater efficiency and productivity  Eliminates aqueous dyeing and its associated wastewater treatment  Solid Color Concentrates  Extrusion-spun fibers colored via solid masterbatch Fiber Colorants  High flame retardancy to meet strict UL standards  Greater processing and design flexibility  Specialized additives provide long term color stability  Diffusive lens materials improve light dispersion Smart Home Devices ResilienceTM Vinyl Solutions 1 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne common shareholders, adjusted earnings per share (EPS) attributable to PolyOne common shareholders and adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 PRO FORMA 2021 TO 2022 BRIDGE 3 2021 EPS from Continuing Operations 1.69$ Pro Forma & Special Items 1.33 Proforma 2021 Adjusted EPS 3.02$ FX Impact (0.22) China Lockdowns / Russia Import Sales (0.24) Outdoor High Performance (0.13) Dyneema 0.06 Color, Additives and Inks 0.38 Legacy Specialty Engineered Materials 0.22 Other 0.01 Proforma 2022 Adjusted EPS 3.10$ Constant Currency Sales Sales COLOR, ADDITIVES AND INKS Q1 Q2 Q3 Q4 FY 4% Q1 Q2 Q3 Q4 FY 4% 7% (4%) (9%) 6% (10%) 0% 1% 2% Constant currency reflects prior year results restated at current year foreign exchange rates Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY 7% 10% 4% (3%) 12% (6%) 5% 6% 9% 610 650 624 649 587 565 581 526 2,402 2,390 589 650 589 649 543 565 545 526 2,266 2,390 116 121 112 119 93 95 88 79 409 414 113 121 106 119 87 95 84 79 390 414 Constant Currency EBITDA EBITDA 10% 4 Constant Currency EBITDA Sales Q1 Q2 Q3 Q4 FY (1%) PRO FORMA SPECIALTY ENGINEERED MATERIALS Q1 Q2 Q3 Q4 FY 16%8% (8%) (8%) 3% (6%) (6%) (2%) 2% EBITDA Constant Currency Sales Constant currency reflects prior year results restated at current year foreign exchange rates Q1 Q2 Q3 Q4 FY 4% Q1 Q2 Q3 Q4 FY 20%12% (1%) (2%) 5% (1%) (2%) 3% 6% 314 338 348 343 325 300 321 295 1,308 1,276 303 338 329 343 303 300 301 295 1,236 1,276 67 78 75 77 70 66 66 62 278 283 65 78 73 77 67 66 63 62 268 283 5 Constant Currency Adjusted EPS Adjusted EPS PRO FORMA AVIENT Q1 Q2 Q3 Q4 FY 10% (3%) (21%) 3% Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY 9% 5% 7% (5%) (9%) (1%) (1%) (12%) 1% Sales Constant Currency Sales Constant currency reflects prior year results restated at current year foreign exchange rates Q1 Q2 Q3 Q4 FY 17% 8% (14%) 11% Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY 14% 10% 11% 2% (3%) 5% 8% (5%) 7% EBITDA Constant Currency EBITDA 925 987 973 992 912 867 902 823 3,712 3,669 893 987 919 992 847 867 845 823 3,504 3,669 161 176 164 172 142 141 133 117 600 606 155 176 157 172 131 141 123 117 566 6068% 2% 0.84 0.98 0.87 0.96 0.70 0.68 0.61 0.48 3.02 3.10 0.79 0.98 0.82 0.96 0.63 0.68 0.56 0.48 2.80 3.10 17% 24% 6 Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Avient EPS Net income from continuing operations $ 64.7 $ 60.4 Net income attributable to noncontrolling interests (0.3) (0.4) Net income from continuing operations attributable to Avient shareholders $ 64.4 $ 0.70 $ 60.0 $ 0.65 Special items, after tax $ 6.4 $ 0.07 $ 2.6 $ 0.03 APM pro forma adjustments 2.6 0.03 (3.1) (0.03) Amortization expense, after tax 17.4 0.19 17.9 0.19 Adjusted pro forma net income / EPS $ 90.8 $ 0.98 $ 77.4 $ 0.84 Weighted average diluted shares 92.3 92.2 Three Months Ended June 30, 2022 Three Months Ended June 30, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Avient EPS Net income from continuing operations $ 62.8 $ 50.2 Net income attributable to noncontrolling interests — (0.6) Net income from continuing operations attributable to Avient shareholders $ 62.8 $ 0.68 $ 49.6 $ 0.54 Special items, after tax $ 3.2 $ 0.03 $ 11.7 $ 0.13 APM pro forma adjustments 5.2 0.06 1.4 0.02 Amortization expense, after tax 17.2 0.19 17.8 0.19 Adjusted pro forma net income / EPS $ 88.4 $ 0.96 $ 80.5 $ 0.87 Weighted average diluted shares 92.1 92.4 Three Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Net income from continuing operations $ 33.4 Net income attributable to noncontrolling interests 0.3 Net income from continuing operations attributable to Avient shareholders $ 33.7 $ 0.37 Special items, after tax $ 11.7 $ 0.13 APM pro forma adjustments 1.5 0.02 Amortization expense, after tax 17.6 0.19 Adjusted pro forma net income / EPS $ 64.5 $ 0.70 Weighted average diluted shares 92.2 Adjusted EPS may not recalculate due to rounding. 1 Three Months Ended December 31, 2021 Year Ended December 31, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Avient EPS Net income from continuing operations $ 11.2 $ 155.2 Net income attributable to noncontrolling interests 0.9 0.2 Net income from continuing operations attributable to Avient shareholders $ 12.1 $ 0.13 $ 155.4 $ 1.69 Special items, after tax $ 24.0 $ 0.26 $ 50.0 $ 0.54 APM pro forma adjustments 2.5 0.03 1.6 0.02 Amortization expense, after tax 17.8 0.19 71.1 0.77 Adjusted pro forma net income / EPS $ 56.4 $ 0.61 $ 278.1 $ 3.02 Weighted average diluted shares 92.4 92.1 Reconciliation of Color, Additives and Inks EBITDA Q1 2021 Q2 2021 Q3 2021 Q4 2021 YTD 2021 Q1 2022 Q2 2022 Operating Income 88.8 86.3 66.8 61.2 303.1 94.5 93.6 Depreciation and amortization 27.4 25.3 26.6 26.4 105.7 26.0 25.9 EBITDA $ 116.2 $ 111.6 $ 93.4 $ 87.6 $ 408.8 $ 120.5 $ 119.5 Reconciliation of Specialty Engineered Materials EBITDA Q1 2021 Q2 2021 Q3 2021 SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 32.6 9.1 41.7 35.8 13.9 49.7 30.0 15.2 45.2 Depreciation and amortization 7.8 17.5 25.3 8.1 17.3 25.4 7.9 17.1 25.0 EBITDA $ 40.4 $ 26.6 $ 67.0 $ 43.9 $ 31.2 $ 75.1 $ 37.9 $ 32.3 $ 70.2 Reconciliation of Specialty Engineered Materials EBITDA Q4 2021 YTD 2021 SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 27.1 11.7 38.8 125.5 49.9 175.4 Depreciation and amortization 8.0 18.9 26.9 31.8 70.8 102.6 EBITDA $ 35.1 $ 30.6 $ 65.7 $ 157.3 $ 120.7 $ 278.0 2 Reconciliation of Specialty Engineered Materials EBITDA Q1 2022 Q2 2022 SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 38.3 15.4 53.7 35.2 17.7 52.9 Depreciation and amortization 7.8 16.6 24.4 7.7 16.6 24.3 EBITDA $ 46.1 $ 32.0 $ 78.1 $ 42.9 $ 34.3 $ 77.2 Reconciliation of Avient consolidated pro forma EBITDA Q1 2021 Q2 2021 Q3 2021 Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations 60.4 (3.1) 57.3 50.2 1.4 51.6 33.4 1.5 34.9 Income tax expense 16.3 1.1 17.4 13.8 1.3 15.1 2.0 2.5 4.5 Interest expense 19.3 11.1 30.4 19.5 11.2 30.7 19.0 11.2 30.2 Depreciation and amortization 36.9 17.5 54.4 33.6 17.3 50.9 36.6 17.1 53.7 EBITDA 132.9 26.6 159.5 117.1 31.2 148.3 91.0 32.3 123.3 Special items, before tax 2.4 — 2.4 14.2 — 14.2 19.9 — 19.9 Depreciation included in special items (0.6) — (0.6) 1.4 — 1.4 (0.9) — (0.9) Adjusted EBITDA $ 134.7 $ 26.6 $ 161.3 $ 132.7 $ 31.2 $ 163.9 $ 110.0 $ 32.3 $ 142.3 Reconciliation of Avient consolidated pro forma EBITDA Q4 2021 YTD 2021 Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations 11.2 2.5 13.7 155.2 1.6 156.8 Income tax expense 16.2 (1.9) 14.3 48.3 3.7 52.0 Interest expense 17.5 11.1 28.6 75.3 44.6 119.9 Depreciation and amortization 37.9 18.9 56.8 145.0 70.8 215.8 EBITDA 82.8 30.6 113.4 423.8 120.7 544.5 Special items, before tax 20.6 — 20.6 57.1 — 57.1 Depreciation included in special items (1.6) — (1.6) (1.7) — (1.7) Adjusted EBITDA $ 101.8 $ 30.6 $ 132.4 $ 479.2 $ 120.7 $ 599.9 3 Reconciliation of Avient consolidated pro forma EBITDA Q1 2022 Q2 2022 Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations 64.7 2.6 67.3 62.8 5.2 68.0 Income tax expense 20.0 1.7 21.7 22.7 1.4 24.1 Interest expense 16.9 11.1 28.0 16.2 11.1 27.3 Depreciation and amortization 37.6 16.6 54.2 36.3 16.6 52.9 EBITDA 139.2 32.0 171.2 138.0 34.3 172.3 Special items, before tax 6.6 — 6.6 0.9 — 0.9 Depreciation included in special items (2.1) — (2.1) (1.1) — (1.1) Adjusted EBITDA $ 143.7 $ 32.0 $ 175.7 $ 137.8 $ 34.3 $ 172.1 Reconciliation of Specialty Engineered Pro Forma Sales Q1 2021 Q2 2021 Q3 2021 Q4 2021 YTD 2021 Q1 2022 Q2 2022 Sales 214.7 238.9 231.7 226.3 911.6 243.1 242.3 Pro forma APM 98.9 108.8 93.8 94.9 396.4 94.8 100.5 Pro forma sales $ 313.6 $ 347.7 $ 325.5 $ 321.2 $ 1,308.0 $ 337.9 $ 342.8 Reconciliation of Avient Pro Forma Sales Q1 2021 Q2 2021 Q3 2021 Q4 2021 YTD 2021 Q1 2022 Q2 2022 Sales 826.0 864.5 818.0 807.1 3,315.6 892.2 891.0 Pro forma APM 98.9 108.8 93.8 94.9 396.4 94.8 100.5 Pro forma sales $ 924.9 $ 973.3 $ 911.8 $ 902.0 $ 3,712.0 $ 987.0 $ 991.5 4 IR Slides V17 - 9.26 324pm IR Deck - AVNT-2022.09.27 Pre Release v2