PDI) on extruded profiles 2 ASTM D-638 3 ASTM 256 4 ASTM D-648 66 psi, unannealed, 0.125" 5 Savings depends on profile size and production volume Acrylite is a registered trademark of Evonik Performance Materials Lens Performance Resilience™ LS Frost PVC Acrylite® Satinice Frost PMMA Light Transmission1 at 0.060" (1.5mm) 83% Low Diffusion 78% Medium Diffusion 75% High Diffusion 81% Low Diffusion Diffusion Half Power Angle (DLD) 26° Low Diffusion 41° Medium Diffusion 58° High Diffusion 26° Low Diffusion Tensile Strength2 Tensile Modulus2 Tensile Elongation (break)2 7,360 psi 400,000 psi 20% 7,330 psi 330,000 psi 43% Flammability (UL 94) V-0 @ 1.5mm 5VA @ 2.0mm HB @ 1.6mm Notched Izod Impact (73°F)3 2.3 ft-lb/in 0.6 ft-lb/in Heat Deflection Temperature4 157°F/69°C 182°F/83°C UV Stability Good Excellent Chemical Resistance Excellent Good Typical Lens Profile Cost 10–15% Savings5 Baseline 1.866.POLYONE www.polyone.com Copyright © 2018, PolyOne Corporation. PolyOne makes no warranties or guarantees respecting suitability of either PolyOne’s products or the information for your process or end-use application. POLYONE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N N O V E M B E R 2 0 1 8 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Leverage PolyOne’s global reach Phase 1 Phase 2 Phase 3 18-20% operating margins Invest in commercial resources I N V E S T - T O - G R O W P R O O F O F P E R F O R M A N C E PolyOne Corporation 23 Commercial Resources Operating Income ($ in millions) Operating Margins 243 335 $36 $90 20% Established Acquisitions (> 7 years) + 40% + 150% + 900 bps I N V E S T - T O - G R O W D R I V I N G T H E F U T U R E PolyOne Corporation 24 Commercial Resources Operating Income ($ in millions) Operating Margins 113 144 206 $16 $18 $60 7% 8% 18-20% Recent Acquisitions PolyOne Corporation 25 Average Company Size # of Possibilities Rationale 250 • Local to regional footprint • Niche technology focus • Concentrated customer base $50M–$200M 150 • Regional to global footprint • 1–3 specialty technologies • Diversified customer base >$200M 30 • Global footprint with local service • Diverse specialty technologies • Highly diversified customer & market portfolio S T R O N G P I P E L I N E D R I V E N B Y F R A G M E N T E D M A R K E T $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 2017 2018 $820M 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 $ 1 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.58 $0.70 $0.78 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Cumulative Share Repurchases (In millions) Increasing Annual Dividend 26 6.3% 15.0% 16-17% 2009 2017 Platinum Vision Updated Expectations R O I C D R I V E S S H A R E H O L D E R R E T U R N PolyOne Corporation 27 PolyOne Corporation 28 W H Y I N V E S T I N P O L Y O N E ? 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 SERVICE: T H E T I M E L E S S D I F F E R E N T I A T O R PolyOne Corporation 29 T A L E N T D E V E L O P M E N T PolyOne Corporation 30 Leadership Program Participants 2012 2013 2015 47 86 2016 125 169 315 Campus Hires 2008 2011 2017 25 47 PolyOne LSS Blackbelts 2008 2011 67 220 147 2018 141 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 31 Material & Color Expertise Manufacturing Expertise 3 14 Industrial designers $0 $7M $4M $40M Opportunity funnel New business revenue LSS CUSTOMER FIRST PolyOne Corporation 32 Customer Projects Enables sales growth by building more intimate customer relationships, giving us insight to customers’ needs, with a service that is not easily replicated 2 85 3 D P R I N T I N G B R I N G I N G N E W I D E A S T O L I F E PolyOne Corporation 33 Enables validation of fit and function Shortens design cycle and time to market Avoids tooling rework Drives innovation Delivers substantial customer value PolyOne Corporation 34 From concept to production 99.9% Reduction in turnaround time Traditional Timeline up to 24 weeks PolyOne ColorMatrix Select™ 6 hours Innovative system for processors and OEMs to develop colors in real time Complete system that provides customers with the freedom to match, prototype and produce color entirely within their own facility C O L O R M A T R I X S E L E C T ™ “Being able to create color and produce parts in 1 day is unheard of in this industry” -CEO, Industry Leader I N N O V A T I N G W I T H P O L Y O N E PolyOne Corporation 35 SEGMENT HIGHLIGHTS C O L O R , A D D I T I V E S & I N K S PolyOne Corporation 36 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants 27% 14% Textiles Building & 10% 10%Transportation Electrical & 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% 16.0% 18.0% 100 110 120 130 140 150 PolyOne Corporation 37 32% 46% 1% Mexico Brazil 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 PolyOne Corporation 38 Engineered Formulations Advanced Thermoplastic Elastomers 20% 19% 13% Building & Electrical & 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 39 $21 $57 $76 0.1% 5.1% 9.3% 28% 48% 22% 12.1% 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 PolyOne Corporation 40 Specialty Vinyl Solutions Healthcare Formulations Smart Device Materials Flame Retardant Polymers Building & 30% Electrical & 1% Asia 77% Mexico 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 $24 $56 $77 4.6% 3.6% 7.2% 10.7% 16.0% 10 100 PolyOne Corporation 41 $886 $668 $773 $721Sales 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 42 23% 22% Electrical & Building & $20 $25 $63 $73 2.9% 5.9% 6.3% 1.0% 3.0% 5.0% 7.0% 15 25 35 45 55 65 75 Operating Income & Margin2017 Revenue | $1.2 Billion http://www.avient.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 43 Thermally Conductive Chemical Resistant Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural 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 Polymer Colorants Elastomeric Grips and Handles Structural Composite Oxygen Scavenger Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Antioxidant Technologies Density Modified 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 PolyOne investor presentation Forward Looking Statements USE OF �NON-GAAP�MEASURES Vision Safety First PolyOne�2017 Revenue | $3.2 billion Proof of Performance Sustainable Path to Double-Digit EPS Growth Investment in Commercial Resources driving growth The Evolving Customer Relationship Slide Number 11 New Resources Fueling the Future Aligning with trends for Growth Innovation 3 Horizons of Development Innovation Pipeline Innovation Spotlight: Composites Composites Refresher Strategic Investment History COMPOSITES in Transportation Invest-to-Grow M&A Strategy Invest-to-Grow M&A Playbook Invest-to-Grow Proof of performance Invest-to-Grow Driving the future Strong Pipeline�driven by fragmented Market Returning cash to shareholders�Over $1 Billion since 2011 ROIC drives shareholder return Why Invest In PolyOne?

Key performance characteristics include: haptics, such as a silky smooth feel; strong chemical and UV light resistance for long-term durability; and vibration-damping qualities to enhance device performance and end user comfort. About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news.

Working closely with the Citroën design team, PolyOne developed a specialty OnColor™ Smartbatch™ color and additive system that allows the distinctive panels to meet stringent UV stability, appearance and durability requirements. About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news

For outdoor applications, ECCOH 5702 solutions can be UV stabilized, including formulations that pass the SEPAP accelerated aging test. Wire and cable manufacturers can learn more about this new solution from PolyOne at its stand (Hall 9/B50) this week at the WIRE trade show in Düsseldorf.  About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. © Shutterstock/PolyOne

Lorraine 61,436(4) - 61,436 Kim Ann Mink (2) (2) (2) WWilliam H. Each performance unit is equal 78,620 (2) 1,048,269 (2) 2,096,538 (2) - 118,125 (3) 945,000 (3) 1,890,000 (3) - 2/10/2016 35,067 105,200 (4) 871,757 2/10/2016 34,750 (5) 868,055 27,244 (2) 363,250 (2) 726,500 (2) - 28,250 (3) 226,000 (3) 452,000 (3) - 2/10/2016 8,383 25,150 (4) 208,410 2/10/2016 8,300 (5) 207,334 18,578 (2) 247,712 (2) 495,424 (2) - 16,875 (3) 135,000 (3) 270,000 (3) - 2/10/2016 5,000 15,000 (4) 124,300 2/10/2016 4,950 (5) 123,651 16,357 (2) 218,096 (2) 436,192 (2) - 14,500 (3) 116,000 (3) 232,000 (3) - 2/10/2016 4,300 12,900 (4) 106,898 2/10/2016 4,250 (5) 106,165 16,849 (2) 224,654 (2) 449,308 (2) - 15,250 (3) 122,000 (3) 244,000 (3) - 2/10/2016 4,517 13,550 (4) 112,284 2/10/2016 4,500 (5) 112,410 S.D. A-2 APPENDIX B POLYONE CORPORATION 2017 EQUITY AND INCENTIVE COMPENSATION PLAN 1.

Rigid thermoplastics include both commodity thermoplastics and engineering thermoplastics, such as polypropylene (PP), polystyrene (PS), high impact polystyrene (HIPS), polycarbonate (PC), acrynitrile-butadiene-styrene (ABS), poly(ethylene terephthalate) (PET), poly(methylmethacrylate) (PMMA), styrene acrylonitrile (SAN), poly(phenylene oxide) (PPO), polyamide (PA), PC/ABS blend and PPO/PS blend etc.. Thus, one of the limitations for most of the existing TPE overmolding technology is that one needs to develop and use different TPE materials for different substrates. TPE-1A peel adhesion s N 190C 205C 220C 235C 3 .1 2 .8 2 .8 2 .6 2 .1 2 .4 2 .4 2 .4 2 .1 2 .1 7 Figure 5.

UNRESOLVED STAFF COMMENTS POLYONE CORPORATION10 ITEM 2.  I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2.  I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2. 

a) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuation allowance adjustments. Attachment 2 2

In addition to its disinfectant resistance, this material contains the necessary flammability and UV resistance needed for the application while also providing excellent moldability and surface finish. We gained speed working with PolyOne,” said Doug Duchon, VP of R&D for Alliqua BioMedical Inc. About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions.