The sessions are hosted by local chapters comprised of PolyOne associates who tailor content to cultural norms and business needs. 4500+ PARTICIPANTS SINCE 2017 66 GLOBAL EVENTS HELD SINCE 2017 FOCUS ON TRUST, COMMUNICATIONS AND UNCONSCIOUS BIAS Mission To advance diversity in professional and personal development at PolyOne Strategic Developing People Professional & Personal Building the Networks Networking & Collaboration Key Tactics Global Speakers Development Programs Local Chapter Programs On-boarding / mentoring “Diversity and Inclusion continues to gain tremendous momentum at PolyOne, and for all the right reasons. In 2018 wind energy generation began at our facility in Assesse, Belgium 66 Sustainability Report | 2018 Waste Management PolyOne is committed to eliminating or reducing wastes generated by our operations and enabling our customers to meet their waste minimization goals. EPS GROWTH 74 Sustainability Report | 2018 Performance Overview Specialty Transformation Drives Margin Expansion 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% *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period 0% 20% 40% 60% 80% 100% 2005 2010 2015 2018** $14M $117M $273M $298M Mix Shift Improvement % o f B IT D * * EBITDA excludes corporate costs and special items ** Pro Forma for sale of PP&S Specialty EBITDA JV’s Performance Products & Solutions Distribution Specialty 81% 66% 46% 7% Sustainability Report | 2018 75 As highlighted in our Products section, PolyOne has a highly-technical and broad portfolio of materials solutions that help our customers—and our planet— be more sustainable.

PolyOne Corporation Page 4 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2015 2016 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Substantial EPS growth from $0.13 to all-time high of $1.96 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 25 Consecutive Quarters of EPS Growth Note: 2009 has not been restated for subsequent changes in accounting principles or discontinued operations -$0.10 $0.00 $0.10 $0.30 $0.50 $0.60 2009 2010 2011 2012 2013 2014 2015 Adjusted Earnings Per Share -2% 0% 10% 2009 2010 2011 2012 2013 2014 2015 Adjusted Consolidated Operating Margin 2.8% 5.2% 5.6% 6.7% 8.3% 6.9% 9.5% PolyOne Corporation Page 6 2015 Revenues: $3.4 Billion End Markets 2015 Revenues: $3.4 Billion PolyOne At A Glance $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Adjusted EPS 66% Building & 10%Electrical & Textiles Distribution 29% PP&S Specialty 51% $1.96 PolyOne Corporation Page 7 Old PolyOne *Operating Income excludes corporate charges and special items 2% 43% 65% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $87M $229M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 8 Color and Engineered Materials at the Heart of Specialty Transformation OPERATING MARGIN 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2020 Platinum Vision COLOR, ADDITIVES AND INKS 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2020 Platinum Vision SPECIALTY ENGINEERED MATERIALS PolyOne Corporation Page 9 2006 2015 2020 “Where we were” “Where we are” Platinum Vision 1) Operating Income % Specialty: Color, Additives & Inks 1.7% 16.7% 20%+ Specialty Engineered Materials 1.1% 14.7% 20%+ Designed Structures & Solutions 1.4% (2012) 3.0% 12 – 14% Performance Products & Solutions 5.5% 8.3% 10 – 12% Distribution 2.6% 6.6% 6.5 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 65% 80%+ 3) ROIC* 5.0% 11.8% 15% 4) Adjusted EPS Growth N/A 25 Consecutive Quarters of YOY EPS Growth Double Digit Expansion Proof of Performance & 2020 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period PolyOne Corporation Page 10 Therma-Tech™ & Sheet GEON™ Vinyl Polymer Colorants Therma-Tech™ TPE’s & Film TPE + OnForce™ Gravi-Tech™ Page 10 Film Target End Markets… Healthcare PolyOne Corporation Page 11 TPE + OnForce OnForce TPE Vibration Dampening (SEM/GLS) TPE & Film (SEM + DSS) Polymer Colorants (CAI) Thermatech Thermoplastic Elastomers TPE + OnForce OnForce Thermoplastic Elastomers Polymer Colorants (CAI) Sheet (DSS) Source: Outdoor Industry Association Target End Markets… Outdoor High Performance PolyOne Corporation Page 12 Sound & Vibration Management Fuel Handling Systems Interior & Exterior Trim Structural Braces & Brackets Interior Structural Components Lighting Air management Electronics & Cameras Fluid Handling Target End Markets… Automotive Underhood Components Roof Systems PolyOne Corporation Page 13 Target End Markets… Packaging PreservaPak™ OnColor™ Smart Batch™ VersaFlex™ TPE Cap Liner ColorMatrix™ Amosorb™ Oxygen Scavenger ColorMatrix™ Ultimate™ UV Light Barrier OnCap™ Laser Marking Additives PolyOne Corporation Page 14 Innovation Drives Earnings Growth *Specialty Platform revenue from products introduced in last five years $20 $53 2006 2015 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 28% 2006 2015 Specialty Platform Gross Margin 12% 43% 2006 2015 Target ≥ 35% Innovation Pipeline Potential PolyOne Corporation Page 15 2,883 2,414 2006 2015 Volume (lbs in millions) -16% $103 $192 2006 2015 Commercial, R&D and Marketing Spending ($M) +86% $303 $721 2006 2015 Adjusted Gross Margin ($M) +138% Investing to Drive Growth Ours Is Not a Cost Cutting Story PolyOne Corporation Page 16 Design and Service as a Differentiator Right Material & Color Desired Product Design Appropriate Manufacturing Process Delivering Concept to Commercialization Connecting the Dots with iQ Design Labs and InVisiO Color Design PolyOne Corporation Page 17 Customer First Through World-Class Service Strengthening relationships through:  Providing LSS services to small/medium sized customers  Providing training in Customer Centric Selling Skills with customers World’s Best Business Process Excellence Program in 2012* World’s Best Start-up program for Lean Six Sigma Deployment in 2009* 81% 93% 2006 2015 16.2% 9.7% 2006 2015 On-Time Delivery Working Capital % of Sales  52% of associates trained in LSS  Five consecutive years – CFO Magazine Best Working Capital Management in the chemical industry Commitment to Operational Excellence PolyOne Corporation Page 18 60% 97% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 Q4 2015 Pension Funding** As of December 31, 2015 Debt Maturities & Pension Funding Net Debt / Adjusted EBITDA*= 2.1x ** includes US-qualified pension plans only *TTM 12/31/2015 $550 $600 $200 $300 $400 $500 $600 $700 $800 2022 2023 Debt Maturities As of December 31, 2015 ($ millions) Coupon Rate: 3.750% 5.250% PolyOne Corporation Page 19 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~75% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends $0.16 $0.20 $0.32 $0.40 $0.48 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 2016 Annual Dividend  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Synergy opportunities  Adjacent material solutions  Repurchased nearly 1.0 million shares in Q4 2015  Repurchased 15.8 million shares since early 2013  4.2 million shares are available for repurchase under the current authorization $0.24 PolyOne Corporation Page 20 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

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 24 Commercial Resources Operating Income ($ in millions) Operating Margins 256 309 $36 $100 Established Acquisitions (> 7 years) + 20% + 165% + 1000 bps CLARIANT MASTERBATCH ACQUISITION DRIVES NEXT LEVEL SPECIALTY TRANSFORMATION ACCELER ATING GR OWTH WITH SUSTAINABLE SOLUTIONS T R A N S F O R M A T I O N H E A D L I N E S PolyOne Corporation 26 F I T W I T H F O U R P I L L A R S T R A T E G Y PolyOne Corporation 27 Specialization • Innovation-led organization with heavy emphasis on R&D • World-class expertise in color formulation • Strong presence in specialty end markets including Consumer, Packaging and Healthcare Globalization • Diverse geographic portfolio with an established presence in every major region • Expands PolyOne’s ability to serve customers in key growth areas including India, China and Southeast Asia Operational • Extensive manufacturing footprint with 46 facilities • Organizational focus on optimizing supply chain to better serve • Color design expertise Commercial • Value-focused salesforce with vast experience marketing and commercializing specialty technologies • Diverse customer portfolio with established OEM’s People Experienced and talented associates with a winning mentality E N D M A R K E T T R A N S F O R M A T I O N PolyOne Corporation 28 18% 50% 22% High Growth End Markets Percentage of Total Revenue 38% E N D M A R K E T T R A N S F O R M A T I O N PolyOne Corporation 29 38% Wire & Electrical & Electronic 18% Building & Wire & Electrical & Electronic C O M P L E M E N T A R Y G E O G R A P H I C P R E S E N C E PolyOne Corporation 30 38% Europe 33% 22% Europe & Middle East 48% 23% Color & Engineered Clariant Masterbatch Net Sales by Geographic Region Europe & Middle East 39% 21% Pro Forma Color & Engineered Materials 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 PolyOne Corporation 31 2006 - 2013 2013 – 2019 PEO PLE PRO D U C TS PLA N ET PER FO R M A N C E Clariant Masterbatch • Building mini-recycling plants to facilitate customer projects on design for recycling - CycleWorks • Uses packaging additives & colorants to improve recyclability and enhance automated sorting • Manufactures oxygen scavengers to extend shelf-life of perishable items and reduce material requirements • Combines UV-blocking additive colorants & other barriers to prevent spoilage and waste • Offers spin-dyeing solutions that use significantly less water than traditional methods, allowing for sustainable coloration of textiles • Produces infrared absorbing additives that reduce energy requirements for bottle manufacturing ($ in millions) (Continuing Operations) Clariant Color & Additive Masterbatch Synergies New 2019 Total Sales $2,863 $1,150 $4,013 2019 Adjusted EBITDA $309 $130 $60 $499 % Margin 10.8% 11.3% 12.4% 2019 CapEx $68 $85 % Sales 2.4% 2.1% 2019 Free Cash Flow $161 $250 2019 Adjusted EPS $1.69 $2.22 2019 PF Adjusted EPS $1.69 $2.54 P O L Y O N E + C L A R I A N T M A S T E R B A T C H B U S I N E S S PolyOne Corporation 32 (1) Excludes step-up of depreciation & amortization related to purchase accounting of transaction (1) $0.85/share 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 PolyOne Corporation 33 46% 66% 0% 40% 60% 80% 100% 2005 2010 2015 2019E PF % o f A d ju st e d E B IT D A * JV's Performance Products & Solutions Distribution Specialty 87% * Adjusted EBITDA is EBITDA excluding corporate costs and special items ** 2019E Pro Forma for PP&S Divestiture and Clariant Masterbatch business acquisition with synergies Specialty EBITDA $14M $117M $273M $500M ** T R A N S A C T I O N O V E R V I E W • Expected mid-2020, subject to regulatory approvals and customary closing conditions Closing Conditions / Timing • Committed financing in place • Permanent financing to be combination of available cash on-hand, new debt and equity component to limit leverage • Equity issuance of $500MM • Target net leverage below 3.5x, 3.1x synergized PolyOne Corporation 36 • $1.45 B net purchase price • Represents 11.1x adjusted EBITDA (excluding synergies), 7.6x adjusted EBITDA (including synergies) • Pre-tax synergies of $60MM expected to be fully realized by the end of 2023 • Synergies realized from sourcing, operational, technology / commercial, and general administrative Transaction Value Synergies Estimated Synergy Breakdown $60MM • Expect EBITDA synergies of $60MM – Proven integration expertise with a decade of acquisition experience – Administrative synergies reflect reduction of duplicative internal and third-party costs • Run rate synergies of $20MM by the end of Year 1 with $60MM achieved by the end of Year 3 • Significant additional opportunity for geographical expansion – Clariant Masterbatch business has complementary regional presence in key growth areas including India & Southeast Asia • Opportunity to accelerate growth with a combined portfolio of innovative solutions aligned with sustainability megatrends Sourcing 40% Operational Administrative PolyOne Corporation 37 S I G N I F I C A N T S Y N E R G Y O P P O R T U N I T I E S $450 $600 $624 $743 2019 2020 2021 2022 2023 2024 2025 2026 A T T R A C T I V E F I N A N C I N G S T R U C T U R E Attractive Debt Maturity Profile Existing Revolver Existing Senior Notes Existing Term Loan B New Debt Summary Terms on New Debt • $465 million of cash from the balance sheet expected to fund a portion of the purchase price • Bridge financing for remainder fully committed from Citi, Morgan Stanley and Wells Fargo • Permanent financing expected to include a combination of long-term debt and new equity • The timing of the permanent financing is subject to a number of factors, including, but not limited to, market conditions • PolyOne is committed to preserving a strong balance sheet – Target net leverage at close below 3.5x, excluding synergies • Pro forma capital structure positions PolyOne with flexibility to pursue continued growth strategy • New financing expected to have same or better covenant package than existing capital structure • Capital structure would be “covenant lite” Capital Policy • Transaction in line with PolyOne’s disciplined capital allocation policy • Existing PolyOne dividend policy to be maintained • Focus on deleveraging in the near term 2028+ PolyOne Corporation 38 PolyOne Corporation 37 $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $0.78 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Cumulative Share Repurchases (In millions) $0 $150 $300 $450 $600 $750 $900 2011 2012 2013 2014 2015 2016 2017 2018 2019 $917M 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 . 2 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation Increasing Annual Dividend 38 $0.81 PolyOne Corporation 39 W H Y I N V E S T I N P O L Y O N E ?

Pune, India(d) 66. Portfolio Transformation Provides Foundation for Sustainable Long-Term Growth 2006 2014 2023 10.9% 5.4% 16.0% A d ju st d E B IT D A M ar g in % Total Company Revenue 60%+ Key Growth Drivers Sustainable Overlap Composites, Healthcare, Asia/LATAM Other HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 66Sustainability Report | 2023 66 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (1)2020 is Pro Forma to include full year of the Clariant Color business (2)2022 is Pro Forma for the acquisition of APM and the divestiture of Distribution Revenue from Sustainable Solutions*Sustainable Solutions As highlighted in our Products section, Avient has a highly technical and broad portfolio of materials solutions that help our customers—and our planet—be more sustainable. Environmental data covers all sites owned or operated by Avient in the reporting period. 102–47 List of material topics People—Occupational Safety & Health; Training and Development; Diversity & Inclusion Pages 20, 23, 24 Products—Product Stewardship; Supplier Collaboration Page 45, 49 Reducing Emissions Across Our Value Chain; Waste: Preventing, Minimizing, Eliminating Pages 55, 57 Performance Overview Page 66 102–48 Restatements of information 2023 Total Energy: 595,769MWh 102–49 Changes in reporting No change 102–50 Reporting period January 1, 2023 through December 31, 2023 102–51 Date of most recent report This is Avient's 6th sustainability report.

Jellison 66 2015 Yes C M Ashish K. Khandpur, Ph.D. 56 2023 No Sandra Beach Lin 66 2013 Yes M M Kim Ann Mink, Ph.D. 64 2017 Yes M M Ernest Nicolas 46 2021 Yes M M Kerry J. Director since: 2015 Age: 66 • Young Innovations, Inc.

Patterson Chairman, President and CEO INTRODUCTION B O B P A T T E R S O N PolyOne Corporation 7 PolyOne Corporation 8 H I S T O R I C P A S T S U S T A I N A B I L I T Y A T P O L Y O N E PolyOne Corporation 9 P E O P L E P R O D U C T S P L A N E T S A F E T Y F I R S T PolyOne Corporation 10 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Injuries per 100 Workers Spartech Acquisition T H E P O L Y O N E A C A D E M Y PolyOne Corporation 11 Leadership Program Participants 2012 2013 2015 86 2016 125 169 216 Campus Hires 2008 2011 25 S U S T A I N A B L Y I M P A C T I N G D I V E R S E E N D M A R K E T S PolyOne Corporation 12 With emphasis on: • Light-weighting • Reducing packaging materials • Improving recyclability • Reducing spread of infection • Facilitating alternative energy solutions Building & 9% Electrical & P R O D U C T S A N D P O R T F O L I O O P T I M I Z A T I O N PolyOne Corporation 13 R E I N V E S T G R O WD I V E S T ( D S S ) OUR PLANET PolyOne Corporation 14 Energy Saving Projects 26 REDUCTION REDUCTION Waste Reduction Projects 2,557 LSS Projects Executed 202 PolyOne LSS Blackbelts 2011 2017 202 2008 147 67 2,557 2008 2017 S U S T A I N A B I L I T Y A T P O L Y O N E PolyOne Corporation 15 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 16 $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 17 65% 2005 2014 $5M $242M + 25% + 33% Specialty OI % of Operating Income C O M M O D I T Y P R U N I N G H E L D O R G A N I C S A L E S F L A T PolyOne Corporation 18 2010 2011 2012 2013 2014 Acquisitions Organic Revenue I N V E S T M E N T I N COMMERCIAL RESOURCES D R I V I N G R E S U L T S PolyOne Corporation 19 Largest organic revenue growth since recession $2.9 $2.9 $3.2 2015 2016 2017 Revenue in billions of $ Total + 10% Organic + 7% 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 20 Double digit annual EPS growth Expand specialty portfolio with strategic acquisitions Innovate and develop new technologies and services Repurchase 600K-1M shares annually Increase commercial resources 6-8% annually Double acquired company margins Enhance efficiencies through Lean Six Sigma and commercial excellence 5.0% 2006 2017 Platinum Vision Updated Expectations R A I S I N G T H E B A R 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 21 COMMERCIAL EXCELLENCE PolyOne Corporation 22 M I C H A E L G A R R A T T PolyOne Corporation 23 PolyOne Corporation 24 35% more sales calls 25% more marketing campaigns 1,000 new customers, expanding customer base by 5% $1.0B increase in new opportunities 8% reduction of average territory size, enabling greater customer focus 20% more prospecting calls PolyOne Corporation 25 P O L Y O N E +34% $3.0 billion $4.0 billion 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 26 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection PolyOne Corporation 27 Customization 55% M&A Innovation Pipeline Adjacent Opportunity for Growth Through New Innovation comes from PolyOne Corporation 28 Adjacent Opportunity for Growth Through New New development adjacent to our existing New development beyond our current Development within our current markets and Create new markets, target new customer Service existing markets and Adjacent Opportunity for Growth Through New PolyOne Corporation 29 markets and Create new markets, target new customer Service existing markets and Gordon/Polystrand – Composites GLS – Thermoplastic Elastomers ColorMatrix – Liquid Color & Additives New development adjacent to our existing New development beyond our current Development within our current Adjacent Opportunity for Growth Through New PolyOne Corporation 30 markets and Create new markets, target new customer Service existing markets and Non-Halogen Flame Retardant Polymers Barrier Technologies Fiber Colorants Advanced Composites Thermoplastic Elastomers New development adjacent to our existing New development beyond our current Development within our current I N N O V A T I O N P I P E L I N E PolyOne Corporation 31 PrototypeFrame Opportunity Scale-up & Test Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 2 1 15 4 10 11 4 7 Breakthrough Platform Derivative Number of Projects 26 16 20 15 2 79 Color Technologies – – $335 $670 $410 19 $1,415 Barrier Additives – – $160 $255 – 8 $415 Flame Retardant Polymers – – $200 $50 – 14 $250 Thermoplastic Elastomers – – $410 $80 $30 17 $520 Advanced Composites – – $100 $40 – 8 $140 Specialty Vinyl Formulations – – $25 $75 – 13 $100 Total Addressable Market ($ millions) – – $1,230 $1,170 $440 $2,840 38% $20 $52 Research & Development Spend ($ millions) Vitality Index % of sales from products launched last 5 years I N N O V A T I O N D R I V E S E A R N I N G S G R O W T H PolyOne Corporation 32 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 33 Material & Color Expertise Manufacturing Expertise 3 14 Industrial designers $0 $7M $4M $40M Opportunity funnel New business revenue 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 34 Enables validation of fit and function Shortens design cycle and time to market Avoids tooling rework Drives innovation Delivers substantial customer value LSS CUSTOMER FIRST PolyOne Corporation 35 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 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 36 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 37 Investments in digital and dedicated inside sales to improve customer experience 80% increase in leads (from 6,000 to 11,000) driven by website, phone, and online chat EXPANDED PATH 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 21 Inside sellers $11M $88M Inside sales/digital revenue 4 focused end-markets aligned with global megatrends 5 strategic innovation platforms 30% increase in IQ Design projects 35% increase in revenue from inside sales/digital ≥35% vitality index PolyOne Corporation 38 I N N O V A T I N G W I T H P O L Y O N E PolyOne Corporation 39 SEGMENT REVIEWS POLYONE DISTRIBUTION PolyOne Corporation 40 S C O T T H O R N 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 41 23% 22% Electrical & Building & $20 $63 $73 2.9% 5.9% 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 http://www.avient.com/Pages/VariationRoot.aspx S E R V I C E I S O U R B U S I N E S S PolyOne Corporation 42 Uniquely positioned to help our customers grow their brand and value-added solutions 1.2B $ Annual Sales 250 Global Employees 24 Strategic Presence 132 Sales Reps Warehouse Locations 6 Service Centers Dedicated Commercial Team S E R V I C E I S O U R B U S I N E S S S A F E L Y A N D R E S P O N S I B L Y PolyOne Corporation 43 95% on-time delivery Customer/Product Combinations 14,000 Transactions/Month In-Person Customer Visits 6,500 27,000 $ PolyOne Corporation 44 37% more sales calls $65M in new revenue from inside sales $400M increase in new opportunities 24% increase in close rate 51% increase in prospecting calls 119 13211 1315 23 Sales R&D / Technical Marketing + 53% + 11% PolyOne Corporation 45 Providing differentiated services that meet the needs of the changing customer landscape G R O W T H T H R O U G H I N S I D E S A L E S $65 PolyOne Distribution Inside Sales $ in millions PolyOne Corporation 46 G R O W T H T H R O U G H M U L T I P L E S A L E S C H A N N E L S Technical Field Sales Key Accounts / Industry Sales Inside Sales Serving a broad spectrum of customers Leveraging digital systems to drive awareness and enhance the customer experience PolyOne Corporation 47 P O D S A L E S +27% $1.2 billion $1.6 billion >10% annual increase in revenue from inside sales and digital with expanded customer touch points 8% annual expansion of sales funnel with best-in-class service and technical expertise 6-8% compound annual operating income growth 6-7% operating margins PolyOne Corporation 48 SPECIALTY ENGINEERED MATERIALS PolyOne Corporation 49 M I C H A E L G A R R A T T 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 50 Engineered Formulations Advanced Thermoplastic Elastomers 19% Electrical & 13% 8% Building & 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 51 $21 $57 $76 0.1% 5.1% 9.3% 12.1% Europe 28% 48% 22% C A P I T A L I Z I N G O N T H E G L O B A L M A R K E T PolyOne Corporation 52 Demand for engineered materials is accelerating Expanding thermoplastic elastomer portfolio to meet the demands of local consumption Grow and develop low smoke, non-halogen technologies to meet increasing European standards Adding capacity in strategic markets India Germany China North America Establishing a commercial hub in Southeast Asia PolyOne Corporation 53 PolyOne Corporation 54 13% more sales calls 36% increase in customization projects $270M increase in new opportunities 12% reduction in average territory size, enabling greater customer focus 50% improvement in speed of formulation turnaround Increased commercial headcount 133 17335 39 120 147 + 30% + 11% PolyOne Corporation 55 S E M S A L E S +43% $610 million $880 million PolyOne Corporation 56 Leading Sporting Goods Manufacturer Provided Lean Six Sigma training and led an onsite Black Belt project to improve product development cycle times Reduced innovation project cycle times by over 10% and prototyping by 40% 80% increased resulting in $500k savings 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 57 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 58 Polymer Composite Strength Design Flexibility Continuous Fiber Thermoset Short Glass Fiber Thermoplastics Continuous Fiber Long Glass Fiber Thermoplastics 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 PolyOne Corporation 59 Acquired Polystrand Installed LFT production Avon Lake Long Fiber Thermoplastic (LFT) Technology Installed LFT Barbastro, Spain Acquired Glasforms Acquired Gordon Thermoplastic Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2010 2012 2015 2016 20162009 20122011 2014 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 60 W A T E R C R A F TR A I L H E A V Y T R U C K Bulkheads and Transoms Ceilings and Hatches Doors and Cabinetry Flooring Door Panels Side Walls Flooring & Side Panels Aerodynamic Fairings Seat and Bunk Reinforcements 44 At Acquisition Now Commercial Resources 0% At Acquisition Goal Operating Margins Test Market Innovation Projects PolyOne Corporation 61 A D V A N C E D C O M P O S I T E S Long-term investments align with key global megatrends Light-Weighting Design Flexibility Sustainability >10% annual increase in customization projects 10% annual expansion of sales funnel, enhancing portfolio in 4 focus end markets 20% increase in global capacity 12-15% compound annual operating income growth 14-16% operating margins PolyOne Corporation 62 PERFORMANCE PRODUCTS & SOLUTIONS PolyOne Corporation 63 D O N W I S E M A N 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 64 Specialty Vinyl Solutions Healthcare Formulations Smart Device Materials Flame Retardant Polymers Building & 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 $33 $56 $77 4.6% 3.6% 7.2% 10.7% 16.0% 10 PolyOne Corporation 65 $886 $668 $773 $721Sales PolyOne Corporation 66 PolyOne Corporation 67 25% more sales calls 113% increase in innovation pipeline $240M increase in new opportunities 36% increase in prospecting calls 300 basis point improvement in operating margin 57 66 18 37 53 + 16% + 43% + 6% PolyOne Corporation 68 P P & S S A L E S +40% $610 million $850 million PolyOne Corporation 69 Leading Wire & Cable Manufacturer Provided Lean Six Sigma training and led on-site Kaizen process improvements Reduced over 400 labor hours through reorganized work area and floor space Increased manufacturing throughput value $1.4M PolyOne Corporation 70 IQ Design is collaborating with a leading medical device manufacturer to replace metal and provide chemical resistance to solve cracking issues related to intense cleaning requirements H E A L T H C A R E I N N O V A T I O N S I N N O V A T I O N S P O T L I G H T : F L A M E R E T A R D A N T P O L Y M E R S PolyOne Corporation 71 F L A M E R E T A R D A N T D R I V E R S PolyOne Corporation 72 Shift toward less toxic solutions Increased consumer awareness Focus on environmentally friendly solutions New regulatory standards F L A M E R E T A R D A N T P E R F O R M A N C E S P E C T R U M PolyOne Corporation 73 Flame Retardant Flame Retardant Flame Retardant Non-Halogen No Dripping Low Smoke Low Toxicity & Corrosiveness H A L O G E N N O N - H A L O G E N L S F O H ( L o w S m o k e a n d F u m e , N o n - H a l o g e n ) Non-Halogen R E G U L A T O R Y C H A N G E S P R O V I D E O P P O R T U N I T Y L E D S O L U T I O N S PolyOne Corporation 74 Solutions for rigid molded & extruded applications Superior outdoor weather performance Excellent light dispersion qualities Formulated to meet stringent flame-rating regulations Custom design support to meet demand 8% more sales calls annually 10% annual expansion of sales funnel, including breakthroughs in healthcare technologies 8-10% compound annual operating income growth 12-14% operating margins PolyOne Corporation 75 COLOR ADDITIVES & INKS PolyOne Corporation 76 M A R K C R I S T C O L O R , A D D I T I V E S & I N K S PolyOne Corporation 77 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants 27% 14% Textiles Building & 8% 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 $104 $139 0.9% 5.5% 12.2% 15.5% 16.0% 18.0% 110 120 130 140 150 PolyOne Corporation 78 Europe 32% 46% 1% Mexico Brazil C A P I T A L I Z I N G O N T H E G L O B A L M A R K E T PolyOne Corporation 79 Emerging markets driving strong demand for color and additives Rapid adoption of food and beverage packaging additives Fiber colorants growth focused on expanding Asia-Pacific market Increase commercial investments focused on China, India and Mexico Expand capacity in China and leverage investments in India Recent acquisitions increasing global reach PolyOne Corporation 80 PolyOne Corporation 81 35% more sales calls 30% increase in customized color formulations 106% increase in innovation pipeline $170M increase in new opportunities 20% increase in prospecting calls 9 days or less in design turnaround time: best-in-class Increased commercial investment 301 382 38 43 209 275 + 27% + 13% + 32% PolyOne Corporation 82 C A I S A L E S +32% $540 million $710 million PolyOne Corporation 83 Developed inventory management framework to reduce working capital by Printing Equipment and Supply Manufacturer Provided Lean Six Sigma training and conducted process mapping exercises to identify key improvement opportunities Optimize manufacturing: 45% improvement in assembly process, 25% cycle time A D D I T I V E & C O L O R A N T T E C H N O L O G I E S PolyOne Corporation 84 B A R R I E R T E C H N O L O G I E S Active oxygen scavenging additive in the bottle wall Evolving technology for active oxygen scavenging additive in the bottle cap Amosorb™ HyGuard™ UV and visible light blocking additive to prevent degradation of product Lactra™ SX Market leader in oxygen, light and UV barrier solutions for the PET bottle market PolyOne Corporation 85 S T R A T E G I C A D D R E S S A B L E M A R K E T > $ 2 0 0 M F I B E R C O L O R A N T S Eliminate waste water associated with conventional dyeing Help meet sustainability targets for brand owners Enable “uncolored fiber” producers to bypass dyehouse Strategic addressable market >$300M PolyOne Corporation 86 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 PolyOne Corporation 87 Thermoplastic 2011 2015 2018 Acquired ColorMatrix Acquired Magenta Acquired IQAP $10 $45 Revenue from Fiber Color Invested in development of liquid fiber colorant technology Expanded solid colorant offerings 38 43 At Acquisition Now Commercial Resources Innovation Projects PolyOne Corporation 88 I N V E S T I N G F O R T H E F U T U R E Nearly 900 projects identified Gaining sustainable momentum & building trust with consumers Sales Funnel $125M “We are unleashing the power of human potential, all to advance the game.

Base Resin ABS PA PBT PC PE PEEK PP PPS Barrel Temperatures °F (°C) Rear Zone 400–475 (200–250) 480–540 (248–282) 480–520 (250–270) 480–570 (250–300) 400–445 (200–230) 660–700 (350–475) 400–440 (200–225) 520–600 (270–300) Center Zone 410–480 (205–253) 490–550 (254–287) 485–525 (251–273) 500–580 (260–305) 410–455 (207–237) 670–710 (357–385) 410–450 (205–230) 550–610 (285–310) Front Zone 420–490 (210–257) 500–560 (260–293) 490–530 (254–276) 515–590 (267–310) 420–465 (213–243) 680–720 (363–400) 420–455 (215–235) 570–620 (300–320) Nozzle 425–500 (215–260) 510–570 (265–298) 490–540 (254–282) 530–600 (275–315) 430–475 (220–250) 700–730 (370–395) 430–460 (220–240) 610–620 (320–325) Melt Temperature 425–515 (215–270) 510–570 (265–298) 490–540 (254–282) 530–615 (275–325) 430–495 (220–260) 700–725 (370–385) 430–475 (220–250) 610–635 (320–335) Mold Temperature 140–200 (60–90) 150–300 (65–148) 140–280 (60–137) 160–240 (70–115) 80–140 (25–60) 300–400 (150–200) 80–140 (25–60) 190–300 (90–150) Drying Parameters 190 (90) 2–4 Hours 0.01%–0.15% 180 (82) 4–5 Hours 0.10%–0.20% 275 (135) 0.02%–0.04% 250 (125) 0.02% 160 (70) 2 Hours 300 (150) 0.10% 160 (70) 2 Hours 280 (135) 2–3 Hours 0.01%–0.20% Nozzle Type General Purpose Nylon or Reverse Taper General Purpose General Purpose General Purpose General Purpose General Purpose General Purpose Injection Velocity1 2–5 in/sec; 50–127 mm/sec Injection Pressure 1,000–2,000 psi; 7–14 Mpa Back Pressure 50–100 psi; 0.3–0.7 Mpa Screw Speed 25–75 RPM Cushion 0.125–0.250 in; 3–6 mm Screw Compression Ratio2 2.0:1–2.5:1 Comments 1. End of Fill Part Length Dynamic Pressure Hydrostatic Pressure P ss Gate End Part FIGURE 61 - Deflection Equations H F WLMax Deflection: 0.002" (0.05mm) 1 = W • H3 12 _______ bending = F • L3 48 • E • I _______ k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = FIGURE 60 - Pressure vs Part Length FIGURE 61 - Deflection equations FIGURE 62 - For Plate Shaped Parts FIGURE 63 - For Cylindrical Shaped Parts Design Guide 49 • MMoldings = Combined mass of molded parts • Cp = Specific Heat of the material Step 3 – Heat Removal Rate • Nlines = The total number of independent cooling lines there are in the mold • tc = The cooling time required by the part (Determined in step 1) Step 4 – Coolant Volumetric Flow Rate • ΔTMax,Coolant = Change in coolant Temperature During Molding (1°C) • ρCoolant = Density of coolant • CP = Specific heat of coolant Step 5 – Determine Cooling Line Diameter • ρCoolant = Density of coolant • VCoolant = Volumetric flow rate of coolant • μCoolant = Viscosity of coolant • ΔPline = Max pressure drop per line (Usually equals half of the pump capacity) • LLine = Length of the cooling lines COOLING LINE SPACING k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = 2D < H < 5D H < W < 2H FIGURE 70 - Cooling Line Spacing FIGURE 64 - Heat Transfer Equation FIGURE 65 - Total Cooling for Mold FIGURE 66 - Cooling Required by Each Line FIGURE 68 - Max Diameter Equation FIGURE 69 - Min Diameter Equation FIGURE 67 - Volumetric Flow Rate Equation 50 Gravi-Tech ADHESIVE ADVANTAGES DISADVANTAGES Cyanoacrylate Rapid, one-part process Various viscosities Can be paired with primers for polyolefins Poor strength Low stress crack resistance Low chemical resistance Epoxy High strength Compatible with various substrates Tough Requires mixing Long cure time Limited pot life Exothermic Hot Melt Solvent-free High adhesion Different chemistries for different substrates High temp dispensing Poor high temp performance Poor metal adhesion Light Curing Acrylic Quick curing One component Good environmental resistance Oxygen sensitive Light source required Limited curing configurations Polyurethane High cohesive strength Impact and abrasion resistance Poor high heat performance Requires mixing Silicone Room temp curing Good adhesion Flexible Performs well in high temps Low cohesive strength Limited curing depth Solvent sensitive No-Mix Acrylic Good peel strength Fast cure Adhesion to variety of substrates Strong odor Exothermic Limited cure depth Design Guide 51 Bibliography 1.

Custom PA grade provides thermal and electrical conductivity for headlamp LED heat shield component  Custom PA grade provides thermal and electrical conductivity for LED heat sink

Formulated specifically for overmolding onto a wide variety of substrates, including PC/ABS, PA, PS, POM, PMMA, PETG, PK or COPE resins, for improved haptics and function

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.