Obtain approval from Avient’s Information Technology department before procuring, installing, connecting, using, or decommissioning software, systems, applications, or non-Avient devices to or from Information Systems, including, but not limited to, on premise and cloud-based systems.

5114 Black Epoxy Base

TPE Knowledge Base

They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.

Geon(TM) DB5219 NEUTRAL GP137 BASE

They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.

Maxxam™ REC, Maxxam™ BIO, and Nymax™ BIO grades: An expanded portfolio of recycled and bio-based polyolefin and polyamide formulations now manufactured in Europe.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.

They are based on management’s expectations that involve a number of business risks and un certainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Patterson 12:00-1:00 PM Lunch PolyOne Corporation Page 7 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 – 2014 2015 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 • 18 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Continue specialty transformation • Targeting $2.50 adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth PolyOne Corporation Page 8 Specialty 54% PP&S 18% Distribution 28% 2013 Revenues: $3.8 Billion 2013 Revenues: $3.8 Billion United States 67% Europe 14% Canada 7% Asia 6% Latin America 6% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 End Markets Specialty Operating Income PolyOne At a Glance Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance 6% Electronics & Electrical 5% PolyOne Corporation Page 9 Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 64% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 Q1 2014 2015 % o f O p e ra ti n g I n c o m e * JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $60M Target Mix Shift Highlights Specialty Transformation 2015 Target PolyOne Corporation Page 10 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 11 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% 450.00% 550.00% PolyOne S&P 500 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs.  Strong past performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with our strengths  Innovation and services provide differentiation, incremental pricing power, and competitive advantage  Strong and proven management team driving growth and performance  Addressable market exceeds $40 billion PolyOne Corporation Page 44 Appendix Kiosk Summaries Segments at a Glance Officer Biographies PolyOne Corporation Page 45 Anti-Counterfeiting Solutions  Includes formulation and consultative services to assist manufacturers and brand owners in positively identifying their packaging, devices, end products and raw materials in the field  Protects brand equity – defense against customer complaints or legal actions based on erroneous product identification  Protects consumer welfare – decrease in potential harm to consumers, reduction in unwarranted recall expenses  Secures supply chain integrity – support for safe expansion into new geographies PolyOne Corporation Page 46 Security and Safety Solutions  Polycast™ Bullet Resistant Sheet, an optically clear, non-yellowing acrylic, provides ballistics protection against powerful weapons • High-impact resistance that foils “smash-and-grab” thieves  GlasArmor™ Bullet Resistant Panels, a UL-listed solution with superior ballistic resistance yet weights 75% less than steel panel • Used in commercial security applications for business, home, and governmental facilities PolyOne Corporation Page 47 3D Printing  Collaborating with customers using 3D printers to create prototypes and samples  Enables customers to develop and test their products and innovations quickly and accurately  3D printing of molds and inserts allows OEMs to develop and test new product innovation using their own equipment and material of choice, more efficient than traditional processes PolyOne Corporation Page 48 Enhanced Ergonomic Technologies  Versaflex™ VDT was developed to absorb vibration and noise in a broad range of applications, including minimally invasive surgical instruments, electronics, firearms, archery and automotive  Can be overmolded onto a rigid substrate without the need for an adhesive to increase production efficiencies and profitability  Creates value by: • Increasing end-user comfort • Eliminating secondary assembly • Differentiating end products PolyOne Corporation Page 49 Sustainable Solutions  reFlex™ Bio-Based Plasticizer non- phthalate additive used to make vinyl more flexible • Derived primarily from soybeans rather than petroleum • Certified by USDA BioPreferred® program  Wilflex™ Oasis Water-Based Inks satisfy consumer demand for eco- conscious products • Long screen life and production- friendly to improve operational efficiencies, increase design quality PolyOne Corporation Page 50 Color and Design Services  First-of-its-kind offering that supports color and product development from concept to reality  Helps brand managers and designers evaluate color and design alternatives to: – accelerate and streamline product development – strengthen brand equity – build marketplace excitement  Enhances product differentiation  Improves efficiency and profitability PolyOne Corporation Page 51 Metal Replacement Technology  Portfolio of solutions that meet upper range of performance requirements, removing barriers to replacing metal with polymers  Applications include: • LED heat sinks • Electronic shielding (EMI/RFI) • Structural integrity at elevated temperatures (i.e., large appliances) • Lead-free radiation shielding (i.e., CT scanners)  Creates value by eliminating the need for machining and secondary operations, removing weight, streamlining production and improving cost efficiencies PolyOne Corporation Page 52 Medical Device Solutions  Catheters made using NEU™ View patent-pending technology are optically translucent, and have superior contrast under X-ray (radiopaque) when compared with alternative catheter materials  Formulations for cardiovascular and intravascular catheters are application-specific, incorporating medical-grade polymers, additives, color, and healthcare-centric manufacturing practices  Only commercially available product that has excellent visibility, both optically and under X-ray, to bolster clinician confidence and offer significant market advantage PolyOne Corporation Page 53 Consumer Electronics Solutions  Ability to offer multiple technology solutions on a global basis for this industry, where many OEMs design in one region, prototype in another, and manufacture in yet another  Sustainable / “green” solutions help customers to differentiate in this market  New formulations for emerging wearables market that meet skin contact requirements and aesthetic needs PolyOne Corporation Page 54 Appliances 4% Building & Construction 4% Consumer 17% Electrical & Electronics 16% Healthcare 12% Industrial 8% Packaging 7% Transportation 19% Wire & Cable 13% At a Glance Global Specialty Engineered Materials 2013 Revenues: $0.6 Billion Solutions 2013 Revenue by Industry Segment Expanding Profits 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12-16% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 2015 Operating Income % of Sales Target United States 43% Europe 33% Canada 2% Asia 18% Latin America 4% 11.6% PolyOne Corporation Page 55 Appliances 2% Building & Construction 11% Consumer 5% Electrical & Electronics 6% Healthcare 7% Industrial 13% Packaging 34% Transportation 10% Wire & Cable 12% Target At a Glance Global Color, Additives and Inks 2013 Revenues: $0.9 Billion Solutions Expanding Profits 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 12-16% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 2015 Operating Income % of Sales United States 44% Europe 37% Canada 2% Asia 11% Latin America 6% 2013 Revenue by Industry Segment 13.8% PolyOne Corporation Page 56 At a Glance Designed Structures and Solutions Solutions 2013 Revenues: $0.6 Billion Expanding Profits 2.2% 8 - 10% 6.5% 2012 PF Q1 2013 Q1 2014 2015 Operating Income % of Sales 0.2% Target United States 96% Canada 3% Latin America 1% Appliances 2% Building & Construction 10% Consumer 11% Healthcare 6% Industrial 13% Packaging 32% Transportation 26% 2013 Revenue by Industry Segment PolyOne Corporation Page 57 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 Operating Income % of Sales At a Glance Performance Products and Solutions Solutions Expanding Profits 2013 Revenues: $0.8 Billion United States 81% Europe 1% Canada 14% Asia 2% Latin America 2% 9-12% Target 2013 Revenue by Industry Segment Appliances 8% Building & Construction 34% Consumer 4% Electrical & Electronics 3% Healthcare 1%Industrial 10% Packaging 6% Transportation 16% Wire & Cable 18% 2015 7.7% PolyOne Corporation Page 58 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6 - 7.5% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 2015 Operating Income % of Sales 15.3% 46.0% 2006 Q1 2014 At a Glance Distribution *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Solutions 2013 Revenues: $1.1 Billion ROIC* Expanding Profits Target Appliances 5% Building & Construction 5% Consumer 14% Electrical & Electronics 5% Healthcare 24% Industrial 16% Packaging 5% Transportation 23% Wire & Cable 3% 6.1% http://www.avient.com/Pages/VariationRoot.aspx

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PY ( T O TA L C O M PA N Y ) $790 $719 2022 2023 $107 $114 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.52 2022 2023 Adjusted EPS (in millions) - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales (in millions) $70 $84 EBITDA SEM $301 $260 Sales $55 $49 EBITDA - 7% - 14%+20% - 11% 2022 2023 (in millions) Q4 EBITDA BRIDGE ( T O TA L C O M PA N Y ) 17 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted EBITDA Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2 0 2 4 G U I D A N C E 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 19 Q1 Adjusted EPS of $0.68 A P P E N D I X 21 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RA W MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 23 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 24 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 25 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 26 B Y E N D M A R K E T Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.