The heaters should demand power 25% to 50% of the time. Typical screw speeds range from 50 rpm to 150 rpm. Normal settings for back pressure are 50–150 psi.

We are Avient. 6 BETTER TOGETHER: POLYONE AND CLARIANT MASTERBATCH Key Financial Data (1) 2021E Sales $4.3 billion 2021E EBITDA $560 million 2021E Free Cash Flow $275 million 88% of EBITDA from specialty applications (1) As of April 30, 2021 webcast Synergies ($ millions) Three-Year Estimate Administrative $ 20 Sourcing 30 Operational 25 Total Synergies $ 75 7 CLARIANT COST SYNERGIES • On-track to realize $45 million of expected synergies in 2021 – up from previous estimate of $35 million • Relentless focus on guiding principles for acquisition integration: safety first, employee collaboration and exceeding customer expectations • Future revenue synergies in excess of $50 million by 2025 are not part of these estimates and represent additional growth over the long term 8 • Barrier technology • Functional additives • Processing aids • Flame retardants • Light-weighting additives Complementary Technologies • Clariant’s approved formulations and certified facilities • Legacy PolyOne’s leading share in distribution channels Healthcare Solutions • Clariant’s position in SE Asia, Latin America, Germany & Italy • Legacy PolyOne’s position in U.S., Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling COMPLEMENTARY TECHNOLOGIES AND CUSTOMERS DRIVE REVENUE SYNERGIES Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable. We estimate in excess of $50 million dollars of new application sales by 2025, exclusively generated from the joining of our portfolios and technology teams. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 84% Median: 78% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $560M and excludes one-time synergy capture CAPEX ($20M) 87 89 87 86 83 81 76 88 85 83 82 81 80 78 78 78 76 72 71 69 50 18 en t Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the majority of our chemical peers.

DISCLAIMER Avient Corporation 3 Avient Corporation 4 Welcome Chairman, President, and Chief Executive Officer INTRODUCTION Sustainability for a Better Tomorrow Senior Vice President and Chief Financial Officer Avient Corporation 5 WE ARE A FORMULATOR CUSTOM FORMULATION Avient Corporation 6 Avient Corporation 7 WE ARE INNOVATORS 2,500+ ACTIVE PATENT FILINGS WORLDWIDE 1,100+ RESEARCH AND DEVELOPMENT ASSOCIATES >85% Stage-gate technology projects enable sustainable solutions INDIA INNOVATION CENTER 33% 2022 VITALITY INDEX 140+ MATERIAL SCIENCE PhD ASSOCIATES Avient Corporation 8 3% 3% 5% Avient Specialty Formulators Other Specialty / Chemical Companies CAPEX / Revenue 2023E Global footprint enables greater flexibility to exceed needs of customers and deliver localized technical and formulation expertise 9 36 24 Manufacturing Locations by Region WE ARE ASSET LIGHT Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA Avient Corporation 9 Asset-light flexibility enables more nimble manufacturing capabilities and lower overhead Periods of economic weakness have driven higher levels of cash generation due to working capital improvement PROVEN TRACK RECORD OF HIGH FREE CASH FLOW CONVERSION 80% 80% 81% 84% 83% 79% 50% 70% 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023E 150 200 250 300 350 400 Fr ee C as h Fl ow C ve rs io Fr ee C as h Fl ow FCF $ AVNT FCF Conversion % S&P FCF Conversion % 2 Recent Divestitures - Combined $1.7B in Proceeds PORTFOLIO EVOLUTION Avient Corporation 10 Combined $3.6B Investment in Acquisitions Since 2016 Color Business Distribution 2016 2022 PORTFOLIO TRANSFORMATION 46% 87% 0% 20% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT DA Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications Avient Corporation 11 END MARKET TRANSFORMATION Defense Avient Corporation 12 8% 23% 4% 2006 2023E Other Industri es 22% 56% 14% 43% 9% 2006 2023E Reduced Exposure to Cyclical End Markets End Market Diversification Transportation Building & Construction 57% Defense IMPROVING PROFITABILITY AND EXPANDING MARGINS Avient Corporation 13 Adj. Colgate-Palmolive, March 2021 Avient Corporation 27 12% CAGR RECYCLED PLASTICS DEMAND GROWING DOUBLE DIGITS Avient Corporation 28 Sources: McKinsey, Standard & Poor’s 2022 • Recycled plastics demand is expected to grow at a 12% CAGR through 2030 • Demand is constrained by availability of recycled content and will need investments in both mechanical and chemical processes • As recycled content becomes more available, it is expected to make up 30% of all plastics demand by 2040 Recycled Virgin Growing Demand for Recycled Content 3% CAGR MAKING CARBON EMISSIONS COMMITMENTS Avient Corporation 29 100% renewable energy consumption 50% reduction in product carbon footprint by 2030 Reduce absolute emissions by 25% before 2030, net zero Net zero carbon emissions by 2050 Achieve carbon neutrality globally by 2050 Achieve net zero greenhouse gas emissions across enterprise Reduce carbon emissions by 75% by 2030 Achieve net zero emissions by 2040 Reduce greenhouse gas emissions by 0.5M tons by 2025; net zero by 2050 Reach net zero greenhouse gas emissions by 2040 Achieve zero emissions across global operations by 2040 Avient Corporation 30 STAKEHOLDERS’ GROWING INFLUENCE Source: Deloitte 2022 Regulators & government 77% Board members & management Consumers & clients NGOs 72% Shareholders & investors 71% Competitors & peers Employees Percent of Companies Feeling Pressure From… Lenders GOVERNMENT INFLUENCE CREATES OPPORTUNITIES Avient Corporation 31 Reduction in carbon emissions per unit of GDP from China by 2030 LOW CARBON FOOTPRINT MATERIALS 25X Increase in offshore wind energy capacity in the E.U. by 2030 INFRASTRUCTURE SOLUTIONS Fuel efficiency increase in 2026 model year vehicles to achieve 49 MPG 90% Replacement of fossil-based plastics with bio-based polymers (Biden Administration) LIGHTWEIGHTING SOLUTIONS BIOPOLYMERS $42B Investment in U.S. infrastructure requiring 100% of fiber optic cable to be U.S. CAFE: Corporate Average Fuel Economy >50% Improvement REDUCE – TAKEAWAY Reducing Energy Consumption and Dependence on Fossil Fuels Drives Growth Projections Examples Covered 45% Other Applications 2022PF $310M 38 46 CAFE1 Miles Per Gallon Proposed Requirements HOW WE ENABLE SUSTAINABILITY Preserve Woon Keat Moh Senior Vice President, President of Color, Additives and Inks – Americas and Asia Avient Corporation 61 PRESERVE Avient Corporation 62 • Preserving Key Natural Resources - Companies are being challenged to mitigate high environmental impact processes such as water-intensive textile dyeing or food spoilage • Incorporating Renewable Materials - Adoption of bio-based raw materials requires design and formulation expertise to overcome performance shortcomings of neat resins • Increasing Healthcare Regulations - Utilizing sustainable materials in healthcare applications requires considerable support in navigating complex regulatory requirements • Increasing Regulatory Compliance - Non-Intentionally Added Substances (NIAS) need to be controlled in sensitive applications • Enabling Faster and More Reliable Connectivity – Substantial investments in 5G infrastructure are required to unlock the potential of the Internet of Things Solutions to preserve and protect natural resources & human life Avient Corporation 63 Spin Dyed Precolor Textile Yarn Renol™ Spin Dyeing Colorants • Replaces water-based dye processes to reduce waste creation • Conserves water and energy LESS WATER PROTECTIVE DENIM Dyneema® Workwear Solutions • Improves tear resistance 50-100% • More protective than competitive alternatives • Enables the amount of protective fiber to be reduced without sacrificing performance 600% IMPROVED ABRASION RESISTANCE Clothing & Textiles 2022 Revenue: $49M Avient Corporation 64 Low Cure Textile Inks Avient Specialty Inks™ Low Cure Inks • Decreases energy consumption • Reduces scrap due to heat-related defects SAVES ENERGY Clothing & Textiles 2022 Revenue: $40M BIO-BASED FORMULATIONS Water Based Textile Inks Zodiac™ Aquarius™ Specialty Inks • Incorporates bio-based materials • Non-formaldehyde solutions available • Reduces waste by enabling high open screen time Avient Corporation 65 Mosquito Netting Cesa™ Fiber Anti-Mosquito Additives • Helps control malaria • Protects consistently using a controlled release of insecticide • Expands access to healthcare breakthroughs to global communities ANNUAL NEW MALARIA CASES 200 Million Antimicrobial Protection Cesa™ WithStand™ Antimicrobial Additives • Reduces microbial / mold growth • Helps reduce odor, staining, discoloration • Excellent comfort and wearability • Chemical resistance - will not discolor or degrade REDUCES MICROBES 2022 Revenue: $5M Avient Corporation 66 Cut-Resistant Gloves Dyneema® Solutions • Incorporates bio-based materials • Reduces carbon emissions • Excellent wearability / comfort WORK INJURIES REDUCES Rescue Rope Dyneema® Solutions • Superior strength-to-weight ratio • High break load • Extraordinary reliability SAVES LIVES 2022 Revenue: $106M Body Armor Dyneema® Protective Solutions • Exceptional trauma protection • Excellent wearability LIGHTER THAN ARAMID FIBER 35% Avient Corporation 67 BIO-DERIVED Pharmaceutical Tubing Versaflex™ Healthcare Pharma Tubing Formulations NEU™ Specialty Engineered Materials • Facilitates incorporation of sustainable materials with healthcare device manufacturers • Eliminates vulcanization processes Medical 2022 Revenue: $40M NON-PHTHALATE Respiratory Conduit Versaflex™ Healthcare Corrugated Tubing Formulations • Non-Phthalate • ISO 10993 & USP Class VI compliant Avient Corporation 68 UP TO BIO-BASED CARRIER Medical Devices Mevopur™ Bio-Based Colorants • Minimizes risk through pre-testing • Provides vital regulatory compliance • Minimizes global supply chain risk with validated backup supply Continuous Glucose Monitoring and Auto Injectors Trilliant™ Healthcare Polymer Solutions • Impact performance • Chemical resistance ENABLES HOME CARE Medical 2022 Revenue: $16M Avient Corporation 69 Fiber Optic Cable and Jacketing Fiber-Line™ Optical Fiber Cable Components • Reduction in weight & energy usage • Thermal and abrasion resistant • Extends product life ENABLES CONNECTIVITY Cable Micromodules ECCOH™ Low Smoke Formulations • Non-halogen • Low smoke and toxicity SUPPORTS SUSTAINABLE INFRASTRUCTURE Base Station Components Edgetek™ Low-Density Formulations • Low density – lighter weight • Low warpage & thermal conductivity EXTENDS PRODUCT LIFE Antenna Components PREPERM™ Low Loss Dielectric Formulations • Replaces costly ceramics • Consistent and efficient antenna performance ENHANCES PERFORMANCE 5G Infrastructure 2022 Revenue: $39M Avient Corporation 70 “Nike has partnered with Avient extensively over the years because of their leadership in eco-friendly screen printing inks.”

We are Avient. 6 BETTER TOGETHER: POLYONE AND CLARIANT MASTERBATCH Key Financial Data (1) 2021E Sales $4.3 billion 2021E EBITDA $560 million 2021E Free Cash Flow $275 million 88% of EBITDA from specialty applications (1) As of April 30, 2021 webcast Synergies ($ millions) Three-Year Estimate Administrative $ 20 Sourcing 30 Operational 25 Total Synergies $ 75 7 CLARIANT COST SYNERGIES • On-track to realize $45 million of expected synergies in 2021 – up from previous estimate of $35 million • Relentless focus on guiding principles for acquisition integration: safety first, employee collaboration and exceeding customer expectations • Future revenue synergies in excess of $50 million by 2025 are not part of these estimates and represent additional growth over the long term 8 • Barrier technology • Functional additives • Processing aids • Flame retardants • Light-weighting additives Complementary Technologies • Clariant’s approved formulations and certified facilities • Legacy PolyOne’s leading share in distribution channels Healthcare Solutions • Clariant’s position in SE Asia, Latin America, Germany & Italy • Legacy PolyOne’s position in U.S., Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling COMPLEMENTARY TECHNOLOGIES AND CUSTOMERS DRIVE REVENUE SYNERGIES Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable. We estimate in excess of $50 million dollars of new application sales by 2025, exclusively generated from the joining of our portfolios and technology teams. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 84% Median: 77% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $560M and excludes one-time synergy capture CAPEX ($20M) 87 89 87 86 82 81 76 88 87 84 82 81 78 77 77 77 76 73 70 69 50 19 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the majority of our chemical peers.

> 50 Shore A Hot tip gates are suitable for GLS TPEs, but they will leave some gate vestige (which can be as high as 50% to 75% of the gate diameter).

The radius of an interior round should be at least 50% of wall thickness (.50W). It should be 75% of wall thickness for a low shrink material, and 50% of wall thickness for a high shrink material. Shot Size = 1.00 & Transfer Position = .50, Increase both by .10 to set a cushion of .10.

Maipu, Chile 50. Minority 50% Gender Female 25% Male 75% Race & Ethnicity U.S. Minority 25% White 75% Age 30–50 8% Over 50 92% Global Gender Diversity by Level—Female Directors, General Managers, VP/SVP 18% Management 29% Professionals 38% Production Associates 9% All Avient Associates 22% * U.S.

Maipu, Chile 50. Minority 50% Gender Female 25% Male 75% Race & Ethnicity U.S. Minority 25% White 75% Age 30–50 8% Over 50 92% Global Gender Diversity by Level—Female Directors, General Managers, VP/SVP 18% Management 29% Professionals 38% Production Associates 9% All Avient Associates 22% * U.S.

Maipu, Chile 50. Minority 50% Gender Female 25% Male 75% Race & Ethnicity U.S. Minority 25% White 75% Age 30–50 8% Over 50 92% Global Gender Diversity by Level—Female Directors, General Managers, VP/SVP 18% Management 29% Professionals 38% Production Associates 9% All Avient Associates 22% * U.S.

Avient Corporation - Ahrensburg Kornkamp 50 22926 Ahrensburg, Schleswig-Holstein Germany 65536-116855Certificate No: Page 5 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Mariana Langiewicza 50 Lódzkie Konstantynow 95-050 Poland 65536-117316Certificate No: Page 19 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Toluca 2000 Toluca, Estado de México 50233 México 65536-74672Certificate No: Page 50 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.