INDUSTRY BULLETIN Cesa™ Laser Marking Additives for the Transportation Industry Many thermoplastic automotive parts require a permanent marking, and laser marking is among the most efficient means to do so. Cesa Laser Marking Additives can be used with thermoplastics commonly used in vehicles including: • PP • PC/ABS • Polyamide • Polyacetal (POM) WHY SELECT LASER MARKING?

Thermoplastic Composite Panels & Laminates for Commercial & Residential Garage Doors Extend the life of your garage doors with Polystrand™ composite sandwich panels or continuous fiber laminates. POLYSTRAND™ THERMOPLASTIC PANELS MATERIALS AND CHARACTERISTICS Facesheet Resins Polypropylene (PP) PETG Facesheet Reinforcement Glass Fiber Core Materials PET Foam PP Honeycomb Characteristics Lightweight Excellent Impact Resistance Formable Value Engineered Facesheets Recyclable 2-layer Composite Laminate Unidirectional Composite Tape 3-layer Composite Laminate 0°/90°/0° 4-layer Composite Laminate 0°/90°/90°/0° POLYSTRAND™ CONTINUOUS FIBER LAMINATES Configuration Wood & Polystrand X-ply Aluminum & Polystrand X-ply Common Material Reinforcements POLYSTRAND™ COMPOSITE SANDWICH PANELS Configuration Fiber Reinforced Facesheet Fiber Reinforced Facesheet Core Material

Long fiber thermoplastics (LFTs) offer benefits to design engineers seeking a material that provides exceptional strength, yet requires lightweight properties. DESIGN SUPPORT Designing your application for long fiber thermoplastics, regardless of material familiarity, requires an assessment of a wide array of inputs to achieve the optimal geometry. With these capabilities at our disposal, we assist you with recommending the following characteristics that make up your customized solution: • Resin system selection (i.e., nylon,polypropylene, rigid thermoplastic polyurethane, etc

HEALTHCARE DEVICE OEM S U R G I C A L S T A P L E R H O U S I N G • Easy-to-mold, durable, and good aesthetics • Excellent disinfection performance and good chemical resistance • Compatible with high- and low-temperature sterilization • Delivered durable and aesthetically pleasing specialty polymer with the added benefit of processing flexibility without retooling • Passed physical, chemical and disinfection tests in different testing conditions which proved good tensile strength and chemical resistance • Achieved consistent molding shape and properties Trilliant™ HC Thermoplastics KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/engineered-polymer-formulations/chemical-corrosion-resistant-formulations/trilliant-hc-healthcare-thermoplastics

OFF-ROAD VEHICLE MANUFACTURER U N I F I E D S E A T I N G S H E L L • Consolidate parts to reduce manufacturing costs • Maintain performance while replacing metal seating frame with lightweight composite material • High durability to withstand harsh usage environments • Delivered long glass fiber reinforced thermoplastic solution providing metal-like performance with excellent toughness • Lowered component costs with single-piece injection molded seat shell • Utilized global capabilities to meet manufacturing supply chain needs Complēt™ Long Glass Fiber PA66 Composite KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics

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INDUSTRIAL FAN MANUFACTURER A X I A L F A N B L A D E • Replace aluminium alloy • Reduce thickness and weight of fan blade • Withstand 920 Pa of static pressure, high relative humidity (90-95%), and max temperature of 104ºF • Redesigned the 1600mm blade utilizing 3D modeling and mold flow analysis services from Avient Design • Simulated mechanical load to determine which new design would provide optimal performance • Increased strength using a carbon fiber grade, enabling injection-moldable parts and streamlined production • Reduced blade thickness to 35% of the original and blade weight from 7.71 lbs to 1.76 lbs (77% decrease) • Improved overall efficiency of fan with a thinner, lighter blade that cuts through the air Complēt Long Fiber Reinforced Thermoplastic KEY REQUIREMENTS WHY AVIENT? LEARN MORE https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics Slide 1: Industrial fan manufacturer

Garratt worked for DuPont Dow Elastomers, a joint venture of Dupont and Dow (global manufacturers of engineered thermoset rubber and thermoplastic elastomer materials) in market development and product management positions, culminating in a regional commercial leadership role for Europe, the Middle East and Africa. On January 29, 2016, the Company completed the acquisition of certain technologies and assets from Kraton Performance Polymers, Inc (Kraton), to expand its global footprint and expertise in the thermoplastic elastomer (TPE) innovation and design, for $72.0 million in cash. Note 20 — SUBSEQUENT EVENTS On January 29, 2016, the Company completed the acquisition of certain technologies and assets from Kraton Performance Polymers, Inc (Kraton), to expand its global footprint and expertise in the thermoplastic elastomer (TPE) innovation and design, for $72.0 million in cash.

Avient Corporation 1 JEFFERIES VIRTUAL INDUSTRIALS CONFERENCE A U G U S T 2 0 2 0 Avient Corporation 2 FORWARD LOOKING STATEMENTS Avient Corporation 3 USE OF NON-GAAP MEASURES Avient Corporation 4 UPDATE ON THE COVID-19 PANDEMIC Avient Corporation 5 2019 Transportation Consumer Discretionary Healthcare Packaging All Other Industries Cost Containment FX 2020 $64.3 18% 16% 2% $46.9 SECOND QUARTER 2020 IN REVIEW Consumer Discretionary Avient Corporation 6 CLARIANT MASTERBATCH STRATEGIC RATIONALE Avient Corporation 7 FIT W I T H FOUR PILLAR S T R A T E G Y Specialization Globalization Operational Commercial People Avient Corporation 8 2006 2019E PF* 2006 2019E PF* 38% * 2019E Pro Forma for PP&S Divestiture and Clariant Masterbatch business Percentage of Total Revenue E N D M A R K E T T R A N S F O R M A T I O N Building & Construction High Growth End Markets 50% 22% Avient Corporation 9 Electronic 38% 18%Transportation Building & Constrution Electrial & Electronic 2006 Pro Forma(1) Net Sales by End Market E N D M A R K E T T R A N S F O R M A T I O N Avient Corporation 10 U N I F I E D F O C U S O N S U S T A I N A B I L I T Y 2006 - 2013 2013 – 2019 PEOPLE PROD UC TS PLANET PER FOR M A NC E Avient Corporation 11 O V E R 8 5 % O F A D J U S T E D E B I T D A F R O M S P E C I A L T Y 46% 66% 0% 40% 60% 80% 100% 2005 2010 2015 Pro Forma % o f A d ju s te d E B IT D A ( 1) JVs Performance Products & Solutions Distribution Specialty 87% (2) Avient Corporation 12 T H E N E W A V I E N T : A S P E C I A L T Y G R O W T H C O M P A N Y Transaction expected to add $0.85 to pro forma adjusted EPS Avient Corporation 13 SUSTAINABILITY AT AVIENT P E O P L E , P R O D U C T S , P L A N E T , P E R F O R M A N C E Avient Corporation 13 Avient Corporation 14 V I S I O N To be the world’s premier provider of specialized polymer materials, services and 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 Operational Commercial Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and sustainable Avient Corporation 15 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 0.56 0.14 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 YTD S A F E T Y F I R S T Injuries per 100 Workers Spartech Acquisition Avient Corporation 16 G R E A T P L A C E T O W O R K Avient Corporation 17 C O M M O D I T Y T O S P E C I A L T Y T R A N S F O R M A T I O N 2006 - 2013 2013 – 20192000-2005 2006 - 2013 2020 and Beyond Avient Corporation 18 A V I E N T 2 0 1 9 R E V E N U E | $ 2 . 9 B I L L I O N Segment End Market Geography Wire & Cable Building & Electrical & Electronics Color Additives & Inks 34% Distribution 41% Specialty Engineered Materials 25% United States 54% Latin America Avient Corporation 19 Operating Income % of Sales Color, Additives & Inks 1.7% 14.7% Specialty Engineered Materials 1.1% 11.6% Distribution 2.6% 6.3% 2009 2010 2011 2012 2013 2014 2015 2016*2017* 2018 $2.43 P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S 10 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 A D J U S T E D E P S E X P A N S I O N 2018 2019 $1.69 $1.51 Avient Corporation 20 531 710 1,032 130 164 207 504 663 871 2014 2018 Pro Forma R&D / Technical Marketing Sales + 34% + 26% + 32% E X P A N S I O N O F COMMERCIAL RESOURCES D R I V I N G G R O W T H Revenue in Billions Total + 10% Organic + 7%+ 45% + 26% + 31% $4.0 $3.2 (2) (1) (1) $2.9 $2.9 $3.5 2015 2016 2017 2018 Pro Forma Total + 9% Organic + 5% Pro Forma(2) Avient Corporation 21 P R I O R A C Q U I S I T I O N S H I S T O R Y Commercial Resources(1) Operating Income ($ in millions) Operating Margins 256 350 $36 $100 Established Acquisitions (> 7 years) + 37% + 176% + 1000 bps Avient Corporation 22 A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R Facilitate alternative energy Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection Avient Corporation 23 I N N O V A T I O N Customization 55% M&A 30% Innovation Pipeline Innovation comes from Research & Development Spend Vitality Index 37% $20 $51 Avient Corporation 24 R E V E N U E F R O M S U S T A I N A B L E S O L U T I O N S $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Avient Corporation 25 SEGMENT HIGHLIGHTS I N N O V A T I N G W I T H A V I E N T Avient Corporation 25 Avient Corporation 26 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 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants 31% Building & Construction Appliances Electrical & Electronics Avient Corporation 26 Avient Corporation 27 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 9 R E V E N U E | O V E R $ 1 B I L L I O N 34% United States 44% Mexico South America $4 $25 $104 $147 0.9% 5.5% 12.2% 14.7% Avient Corporation 27 Avient Corporation 28 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 Engineered Formulations Advanced Composites Thermoplastic Elastomers Wire & Cable* 28% Electrical & Electronics Building & Construction Avient Corporation 28 Avient Corporation 29 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 9 R E V E N U E | $ 7 5 0 M I L L I O N 27% United States 54% 17% $21 $57 $87 0.1% 5.1% 9.3% 11.6% Avient Corporation 29 Avient Corporation 30 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 28% 17% Electrical & Electronics Building & Operating Income & Margin2019 Revenue | $1.2 Billion $25 $63 $75 $20 2.9% 4.0% 5.9% 6.3% Avient Corporation 30 http://www.avient.com/Pages/VariationRoot.aspx Avient Corporation 31 O V E R V I E W O F R A W M A T E R I A L P U R C H A S E S Avient Corporation 31 Avient Corporation 32 Avient Corporation 33 Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders Joint venture equity earnings, after tax Special items, before tax Special items, tax adjustments Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 (19.0) (14.7) (3.7) — — — — — — — — — — — (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S).

Bring tactile and visual appeal to your human-machine interface designs with GLS™ OnFlex™ TPEs TPE