Conference call participants in the question and answer session should pre-register using the link at avient.com/investors, or here, to receive the dial-in number and personal PIN.

UltraTuf LED sheet is made using BPA-free Eastman Spectar™ Stratus copolyester, which has received UL GREENGUARD Certification for Indoor Air Quality.

STAN-TONE HCC- #11 CHR VORE-F STAN-TONE HCC-103350 #11 CHR STR2-F STAN-TONE HCC-103323 #11 CHR VOF2-F

Dec 11, 2014 12:00 PM EST

Sep 11, 2012 12:05 PM EDT

Feb 28, 2011 11:00 AM EST

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 P R O F O R M A 2 0 1 8 R E V E N U E | $ 2 . 9 B I L L I O N * Segment End Market Geography Transportation 15% Healthcare 15% Industrial 14% Packaging 13% Consumer 12% Wire & Cable 11% Building & Construction 6% Electrical & Electronics 6% Textiles 5% Appliance 3% Color Additives & Inks 34% Distribution 41% Specialty Engineered Materials 25% United States 54% Europe 20% Asia 11% Latin America 10% Canada 5% *Pro Forma excluding PP&S and including Fiber-Line PolyOne Corporation 204 P R O O F O F PER FO R MA N C E C O N S E C U T I V E Y E A R S 10 A D J U S T E D E P S E X P A N S I O N $1.51 $1.61 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 Expand specialty portfolio with strategic acquisitions Innovate and develop new technologies and services Repurchase 600K-1M shares annually Increase commercial resources 5-7% annually Double acquired company margins Enhance efficiencies through Lean Six Sigma and commercial excellence 531 710130 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 COMMERCIAL RESOURCES 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 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 24 2014 2018 Inside sellers $11M $109M 2014 2018 Inside sales/digital revenue A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend ($ millions) Vitality Index % of sales from products launched last 5 years 12% 35% 2006 2018 $20 $56 2006 2018 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 14 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 PlastiComp Fiber-Line 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 15 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 16 Fiber Polymer Composite Strength Design Flexibility Continuous Fiber Thermoset Composites Short Glass Fiber Thermoplastics Continuous Fiber Thermoplastic Composites 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 Acquired Polystrand Installed LFT production Avon Lake Acquired Gordon Composites Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Thermoplastic (LFT) Technology Installed LFT production Barbastro, Spain Acquired Glasforms Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 Acquired PlastiComp, specialty LFT producer 2018 PolyOne Corporation 2019 Acquired Fiber-Line, specialty fiber processor 17 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 18 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 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 19 1. 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 243 340 At Acquisition Today $36 $96 At Acquisition Today 11% 20% At Acquisition Today Established Acquisitions (> 7 years) + 40% + 165% + 900 bps I N V E S T - T O - G R O W D R I V I N G T H E F U T U R E PolyOne Corporation 24 Commercial Resources Operating Income ($ in millions) Operating Margins 138 181 251 At Acquisition Today Goal $23 $25 $70 At Acquisition Today Goal 7% 8% 18-20% At Acquisition Today Goal 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 $0.16 $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 YTD $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 26 $0.81 PolyOne Corporation 27 W H Y I N V E S T I N P O L Y O N E ? Baird Global Industrial conference Forward Looking Statements USE OF �NON-GAAP�MEASURES Vision Safety First PolyOne�pro forma 2018 Revenue | $2.9 billion* Slide Number 7 Sustainable Path to Double-Digit EPS Growth Investment in Commercial Resources driving growth The Evolving Customer Relationship Slide Number 11 Aligning with trends for Growth Innovation 3 Horizons of Development Innovation Spotlight: Composites Composites Refresher Strategic Investment History COMPOSITES in Transportation PolyOne applications in Fiber optic cables Fiber optical growth drivers 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 $1.2 Billion since 2011 Why Invest In PolyOne?

Call 1-800-690-6903 to vote your proxy BY TELEPHONE until 11:59 p.m. Outstanding Equity Att wards at 2016 Fiscal Year-End Option Exercise Price ($) ((e)) Option Expiration Date ((f))ff Market Value of Shares or Units of Stock That Have Not Vested ($) ((h)) Equity Incentivtt e Plan Awards: Market or Payout Value of Unearned Shares, Units ot r Othertt Rights ttt hatt t Have Not Vested ($) ((jj)) - - 8,510 (1) 272,660 - - - 24,671 (2) 790,459 - - - 35,272 (3) 1,130,115 - - - - 51,756 (6) 1,658,262 - - - 51,756 (6) 1,658,262 30,500 (8) 14.81 2/16/2021 - - 48,800 (9) 14.61 2/14/2022 - - 30,700 (10) 23.08 2//15//2023 - - 13,667 (11) 6,833 (11) 35.07 2//11//2024 - - 66,700 (12) 38.27 2//4//2025 - - 105,200 (13) 24.98 2/10/2026 - - - 7,266 (1) 232,803 - - - 6,892 (2) 220,820 - 8,426 (3) 269,969 - 11,600 (11) 5,800 (11) 35.07 2/11/2024 - 18,700 (12) 38.27 2//4//2025 - - 25,150 (13) 24.98 2//10//2026 - - - - 4,360 (1) 139,694 - - - 25,935 (4) 830,957 - - - 4,114 (2) 131,813 - - - 5,026 (3) 161,033 - - - - 25,935 (7) 830,957 13,700 (10) 23.08 2/15/2023 - - 6,934 (11) 3,466 (11) 35.07 2/11/2024 - - 11,200 (12) 38.27 2/4/2025 - - 15,000 (13) 24.98 2//10//2026 - - - - 3,222 (1) 103,233 - - - 2,593 (5) 83,080 - - - 3,395 (2) 108,776 - - - 4,316 (3) 138,285 5,200 (11) 2,600 (11) 35.07 2/11/2024 - - 9,200 (12) 38.27 2/4/2025 - - 12,900 (13) 24.98 2//10//2026 - - - - 3,634 (1) 116,433 - 3,500 (2) 112,140 - 4,569 (3) 146,391 - 23,300 (9) 14.61 2//14//2022 - - 13,700 (10) 23.08 2/15/2023 - 5,800 (11) 2,900 (11) 35.07 2/11/2024 - - 9,300 (12) 38.27 2/4/2025 - 13,550 (13) 24.98 2//10//2026 - - 37,760 (1) 1,209,830 - 137,000 (10) 23.08 2//15//2023 - 60,667 (11) 30,333 (11) 35.07 2/11/2024 - - - - S.D. Richardson the stock awards include RSUs that were granted on November 11, 2013 and settled on November 11, 2016.

PEM-11-01-100-LTS NATURAL PEM-11-01-040-LTS NATURAL PEM-11-01-028-LTS NATURAL

November 11, 2024 DÜSSELDORF, Germany – November 11, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, is pleased to announce the launch of Colorant Chromatics™ Transcend™ Biocompatible PEEK Pre-Colored Compounds and Colorants at MEDICA 2024, one of the largest B2B medical technology and healthcare trade fairs, happening today through November 14. Avient will be at MEDICA from November 11–14, at booth #A74 in Hall 3, part of the Luxembourg Chamber of Commerce pavilion.