The company's vitality index, which reflects the percentage of revenue from specialty products introduced in the last five years, remained world class at 42%. 

In 2014, our Vitality Index reached a world-class level of 44 percent. STOCK PERFORMANCE PolyOne’s stock performance has significantly outpaced the S&P 500 index and the S&P Mid Cap Chemicals index. Refer to the Exhibit Index, which is incorporated by reference herein.

The following table compares cumulative total shareholder return (“TSR”) on our common shares against the cumulative total return of the S&P 500 Index and the S&P Mid Cap Chemicals Index over one-, three- and five-year periods ending December 31, 2017, assuming in each case a fixed investment of $100 and reinvestment of all dividends. Our performance over the one-year and five-year periods has exceeded the S&P 500 Index as well as the S&P Mid Cap Chemicals Index. 1-Year TSR January 1, 2017 – December 31, 2017 3-Year TSR January 1, 2015 – December 31, 2017 5-Year TSR January 1, 2013 – December 31, 2017 PolyOne Corporation $137.79 $119.71 $226.28 S&P 500 Index $121.83 $138.29 $208.14 S&P Mid Cap Chemicals $124.26 $149.35 $207.65 We believe that the returns to shareholders shown in the table above indicate that our pay-for-performance philosophy, compensation plan design and selected performance measures are working, and have resulted in performance that has provided increased value to our shareholders over the long-term as shown above. Over a three-year time period, our TSR performance was less than the S&P 500 Index and the S&P Mid Cap Chemicals Index, primarily due to weaker performance from our DSS segment, which we subsequently divested in July 2017.

Table of Contents Introduction 1 Overmolding 2 Material Selection 4 Part and Mold Design 6 Material Handling and Preparation 17 TPE Injection Molding 18 Overmolding Processing – Maximizing Adhesion 21 TPE Injection Molding Troubleshooting 23 TPE Overmolding Troubleshooting 28 Index 30 1 Introduction Avient is the recognized leader in the overmolding of thermoplastic elastomers (TPEs). Table of Contents Introduction 1 Overmolding 2 Material Selection 4 Part and Mold Design 6 Material Handling and Preparation 17 TPE Injection Molding 18 Overmolding Processing – Maximizing Adhesion 21 TPE Injection Molding Troubleshooting 23 TPE Overmolding Troubleshooting 28 Index 30 32 Overmolding Overmolding is the injection molding process where one material (usually a TPE) is molded onto a second material (typically a rigid plastic). Avoid lubricated plastic grade and do not use mold release spray. 3130 Index Adhesion ............................................3-5, 21-22, 28 Balanced Runner Systems ..................................10 Buttonhead Sprue Puller ....................................13 Cavity Layout ........................................................10 Clamp Capacity ....................................................19 Cold Slug Wells ....................................................11 Color Concentrate Carriers ............................17 Coloring..................................................................17 Conventional Sprue ............................................12 Cooling Time ........................................................20 Cushion ..................................................................18 Cycle Time ........................................................6, 20 Delamination............................................................7 Diaphragm Gate....................................................15 Direct Gate............................................................14 Draft ..........................................................................6 Drying Conditions................................................17 Edge Gate ........................................................13, 15 Ejection......................................................................9 Fan Gate ................................................................14 Flash ..........................................................7-8, 24, 28 Flow Length..............................................................6 Flow Ratio ................................................................9 Fracture of Insert ................................................29 Gate Design ....................................................12-15 Gate Location..................................................12-15 Gate Size ..........................................................12-15 Gate Types........................................................12-15 Hot Runner Manifold Systems ..........................16 Injection Molding ............................................18-20 Injection Molding Troubleshooting ............23-27 Back Fills ............................................................24 Beach Marks ......................................................23 Bubbles................................................................23 Burned Edges ....................................................23 Burnt Odor........................................................23 Dimensions ........................................................23 Ejection ..............................................................26 Ejector Pin Marks .............................................24 Flash ....................................................................24 Flow Marks ........................................................24 Folds ....................................................................24 Heat Sinks ..........................................................25 Jetting ..................................................................25 Non-Uniform Color ........................................25 Off-Color Part ..................................................25 Short Shots ........................................................26 Splay/Streaks ......................................................27 Uneven Shine ....................................................23 Voids ....................................................................27 Warpage .............................................................27 Yellow Parts .......................................................23 Injection Pressure ................................................19 Injection Speed......................................................19 Insert Molding ..................................2-3, 10, 21-22 Insert Support ......................................................10 Jetting ................................................................13, 25 Land Length ...............................................11, 13-14 Machine Selection ................................................19 Material Flow Behavior .......................................18 Material Handling and Preparation ..................17 Material Selection ...............................................4-5 Adhesion Requirements....................................5 Coefficient of Friction .......................................4 Durometer ...........................................................4 Flexural Modulus ...............................................4 SubstrateType ......................................................5 Thickness Effects ................................................4 Melt Temperature ................................7, 18, 21-22 Measuring................................................................21 Mechanical Interlocks ............................................8 Melt Viscosity ........................................................18 Moisture in Substrate ........................................................21 in TPE ..................................................................17 Moisture Level ......................................................17 Mold Construction ................................................9 Mold Cooling ....................................................9, 19 Mold Design ......................................................9-16 Mold Layout ..........................................................10 Mold Release..........................................................21 Mold Support ........................................................10 Mold Surface Texture ............................................9 Mold Temperature ..........................................19-20 Multiple Material Molding .................................2-3 Multi-Shot Injection Molding ............................2-3 Nylon, Preheating Inserts ....................................21 Nozzle Diameter ..................................................19 Overmolding ........................................................2-3 Part Design ...........................................................6-8 Pin Gate ..................................................................15 Pine Tree Sprue Puller ........................................12 Preheating Inserts ................................................21 Process Selection ....................................................3 Process Types ..........................................................2 Purging ....................................................................19 Regrind....................................................................17 Release Coating ......................................................9 Residence Time ....................................................19 Runner Configuration ..........................................11 Runner Design ......................................................11 Sharp Corners ........................................................6 Shear Rate ........................................................18-19 Shear Sensitivity..........................................9, 18-19 Shear Thinning....................

In 2015, our Vitality Index was an impressive 43%, truly world-class performance. Wulfsohn Director Date: February 12, 2016 POLYONE CORPORATION 83 EXHIBIT INDEX Exhibit No. The S&P Mid Cap Chemicals index includes a broad range of chemical manufacturers.

Refer to the Exhibit Index, which is incorporated by reference herein. Wulfsohn Director Date: February 12, 2013 82 POLYONE CORPORATION EXHIBIT INDEX Exhibit No. The S&P Mid Cap Chemicals index includes a broad range of chemical manufacturers.

Review the index for particular pieces of information and location within the response.

Investor Day P O L Y O N E I N V E S T O R P R E S E N T A T I O N A U G U S T 2 0 1 9 F O R W A R D L O O K I N G S T A T E M E N T S PolyOne Corporation 2 • • • • • • • • • • U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • • • 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 Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 Injuries per 100 Workers Spartech Acquisition 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 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 PolyOne Corporation 6 P O L Y O N E 2 0 1 8 R E V E N U E | $ 3 . 5 B I L L I O N Transportation 17% Industrial 15% Consumer 12% Packaging 11% Wire & Cable 10% Appliance 5% United States 57% Europe 16% Asia 10% Latin America 10% Canada 7% Distribution 35% Performance Products & Solutions 19% Specialty Engineered Materials 17% Color Additives & Inks 29% Segment End Market Geography Building & Construction 11% Electrical & Electronics 6% Healthcare 13% 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 PolyOne Corporation 7 9 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 2006 2018 ROIC** 5.0% 14.1% Operating Income % of Sales Color, Additives & Inks 1.7% 15.1% Specialty Engineered Materials 1.1% 11.2% Performance Products & Solutions 4.3% 10.0% Distribution 2.6% 5.6% A D J U S T E D E P S E X P A N S I O N S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 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 Double digit annual EPS growth strategic acquisitions Innovate 600K-1M commercial resources 5-7% Double acquired margins Lean Six Sigma commercial excellence 531 710 130 164 504 663 2014 2018 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 34% + 26% + 32% I N V E S T M E N T I N C O M M E R C I A L R E S O U R C E S D R I V I N G G R O W T H Sustained revenue increases led by organic business $2.9 $2.9 $3.2 $3.5 2015 2016 2017 2018 Total + 9% Organic + 5% Revenue in billions of $ Total + 10% Organic + 7% Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 110% increase in leads (from 6,000 to 12,700) driven by website, phone, and online chat E X P A N D E D P A T H A D D I N G C U S T O M E R T O U C H P O I N T S 4 24 2014 2018 Inside sellers $11M $109M 2014 2018 Inside sales/digital revenue 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 PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend Vitality Index 12% 35% 2006 2018 $20 $56 2006 2018 Transformational Adjacent Core 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Market Technical I N N O V A T I O N I N N O V A T I O N P I P E L I N E PolyOne Corporation 15 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2017) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 11 4 4 3 2 28 0 5 10 7 2 5 5 Breakthrough Platform Derivative 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 I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 16 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 17 Fiber Polymer Composite S T R A T E G I C I N V E S T M E N T H I S T O R Y Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 2018 PolyOne Corporation 2019 18 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 19 W A T E R C R A F TR A I L H E A V Y T R U C K F I B E R - L I N E H I G H L I G H T S PolyOne Corporation 20 $100M • • • • • • • • • • • • • • • • • • • Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 • • • • • • • • • F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks      10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First!

Investor Day P O L Y O N E I N V E S T O R P R E S E N T A T I O N M A Y 2 0 1 9 F O R W A R D L O O K I N G S T A T E M E N T S PolyOne Corporation 2 • • • • • • • • • • U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • • • 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 Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 Injuries per 100 Workers Spartech Acquisition 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 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 PolyOne Corporation 6 P O L Y O N E 2 0 1 8 R E V E N U E | $ 3 . 5 B I L L I O N Transportation 17% Industrial 15% Consumer 12% Packaging 11% Wire & Cable 10% Appliance 5% United States 57% Europe 16% Asia 10% Latin America 10% Canada 7% Distribution 35% Performance Products & Solutions 19% Specialty Engineered Materials 17% Color Additives & Inks 29% Segment End Market Geography Building & Construction 11% Electrical & Electronics 6% Healthcare 13% 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 PolyOne Corporation 7 9 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 2006 2018 ROIC** 5.0% 14.1% Operating Income % of Sales Color, Additives & Inks 1.7% 15.1% Specialty Engineered Materials 1.1% 11.2% Performance Products & Solutions 4.3% 10.0% Distribution 2.6% 5.6% A D J U S T E D E P S E X P A N S I O N S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 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 Double digit annual EPS growth strategic acquisitions Innovate 600K-1M commercial resources 5-7% Double acquired margins Lean Six Sigma commercial excellence 531 710 130 164 504 663 2014 2018 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 34% + 26% + 32% I N V E S T M E N T I N C O M M E R C I A L R E S O U R C E S D R I V I N G G R O W T H Sustained revenue increases led by organic business $2.9 $2.9 $3.2 $3.5 2015 2016 2017 2018 Total + 9% Organic + 5% Revenue in billions of $ Total + 10% Organic + 7% Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 110% increase in leads (from 6,000 to 12,700) driven by website, phone, and online chat E X P A N D E D P A T H A D D I N G C U S T O M E R T O U C H P O I N T S 4 24 2014 2018 Inside sellers $11M $109M 2014 2018 Inside sales/digital revenue 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 PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend Vitality Index 12% 35% 2006 2018 $20 $56 2006 2018 Transformational Adjacent Core 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Market Technical I N N O V A T I O N I N N O V A T I O N P I P E L I N E PolyOne Corporation 15 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2017) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 11 4 4 3 2 28 0 5 10 7 2 5 5 Breakthrough Platform Derivative 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 I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 16 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 17 Fiber Polymer Composite S T R A T E G I C I N V E S T M E N T H I S T O R Y Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 2018 PolyOne Corporation 2019 18 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 19 W A T E R C R A F TR A I L H E A V Y T R U C K F I B E R - L I N E H I G H L I G H T S PolyOne Corporation 20 $100M • • • • • • • • • • • • • • • • • • • Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 • • • • • • • • • F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks      10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First!

As we look to the future, we expect sales of our sustainable solutions to accelerate and grow at an 8-12% CAGR, furthering the win-win benefit trend for both Avient and our planet. 10 Eight Ways Avient Enables Sustainability 2016 2017 2018 2019 2020PF Revenue from Sustainable Solutions(1) 2016–2020 VOC Reduction Reduced Energy Use Bio-derived Content Eco-conscious Renewable Energy Applications Recyclability Reduced Material Requirements Lightweighting $275M $325M $355M $410M $550M (2) Our world-class vitality index of 37% represents sales from products introduced in the last five years.