Richardson Executive Vice President & Chief Financial Officer Donald Wiseman Senior Vice President, President of Performance Products & Solutions Joel Rathbun Senior Vice President, Mergers & Acquisitions John Midea Senior Vice President, Global Operations & Process Improvement Scott Horn Senior Vice President, President of PolyOne Distribution Kurt Schuering Vice President Global Key Account Management Michael A. CEO, Industry Leader C O M M E R C I A L R E S O U R C E S I N N O V A T I O N S E R V I C E I N S P I R E D F U T U R E 6-8% annual increase in commercial resources 8% more sales calls annually 10% annual expansion of sales funnel, including advances in barrier additives and fiber colorants 12-15% compound annual operating income growth 16-18% operating margins PolyOne Corporation 93 M & A R E V I E W J O E L R A T H B U N PolyOne Corporation 94 TPE O V E R A D E C A D E O F S U C C E S S F U L S P E C I A L T Y A C Q U I S I T I O N S PolyOne Corporation 95 PolyOne Corporation 96 Safety Technology Geography Service FinancialPeople Low EH&S risk profile New and complementary technologies Leverage our global footprint Strong customer relationships Foundational operating margins of 8-10% with ability to double Motivated team with a specialty culture I N V E S T - T O - G R O W S T R A T E G Y PolyOne Corporation 97 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W 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 Deck - Web Investor Day Forward �Looking �Statements Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: USE OF �NON-GAAP�MEASURES Investor Day Agenda May 10, 2018 The Leaders Behind the Team Introduction Historic Past Sustainability AT PolyOne Safety First the PolyOne Academy Sustainably Impacting diverse End Markets Products and Portfolio Optimization OUR PLANET Sustainability AT PolyOne Adjusted EPS Expansion Early years defined by Specialty �mix improvement Commodity Pruning �Held Organic Sales Flat Investment in Commercial Resources Driving Results Sustainable Path to Double-Digit EPS Growth Raising the Bar�ROIC drives shareholder return Commercial Excellence STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future Aligning with trends for Growth Innovation 3 Horizons of Development 3 Horizons of Development 3 Horizons of Development Innovation Pipeline Innovation Drives Earnings Growth IQ DESIGN LABS 3D Printing�Bringing New ideas to life LSS CUSTOMER FIRST The Evolving Customer Relationship Slide Number 37 Inspired future Innovating with PolyOne PolyOne Distribution DISTRIBUTION Service is our business Service is our business Key Commercial Investments Growth through Inside Sales Growth through Multiple Sales Channels New Resources Fueling the Future Inspired future Specialty Engineered Materials Specialty Engineered Materials Specialty Engineered Materials Capitalizing on the global market STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future growth Through Service Innovation Spotlight: Composites Composites Refresher Strategic Investment History COMPOSITES in Transportation Slide Number 61 Inspired future Performance Products �& Solutions Performance Products & Solutions Performance Products & Solutions STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future Growth Through Service Growth Through Service Innovation Spotlight: �Flame Retardant�Polymers FLAME RETARDANT �DRIVERS Flame Retardant Performance Spectrum LED Solutions Inspired future Color Additives�& Inks COLOR, ADDITIVES & INKS Color, Additives & Inks Capitalizing on the global market STRATEGIC INVESTMENT IN 3 KEY AREAS Key Commercial Investments New Resources Fueling the Future Growth Through Service Innovation Spotlight: Additive & Colorant�Technologies Barrier Technologies Fiber Colorants Strategic Investment History Slide Number 88 Slide Number 89 COLORMATRIX SELECT™ Enabling the Customer Slide Number 92 Inspired future M&A Review Over a decade of successful specialty acquisitions Invest-to-Grow Strategy Invest-to-Grow Playbook Invest-to-Grow Proof of performance Invest-to-Grow Proof of performance Invest-to-Grow Driving the future Invest-to-Grow Driving the future Strong Pipeline�driven by fragmented Market Summary Financial Review Adjusted EPS Expansion Strategic cash deployment Proof of Performance �Expanding Margins & ROIC Investment in Commercial Resources Driving Results Sustainable Path to Double-Digit EPS Growth ROIC drives shareholder return ROIC drives shareholder return Conclusion Investor Presentation - May 2018 Non-GAAP Investor Presentation - March 2018

OFFSHORE LURE MANUFACTURER F I S H I N G L U R E S • Allow enhanced processability and control viscosity • Formulated without Prop 65 listed components • Maintain physical properties • Retain contaminant-free product integrity • Supplied plastisol solutions that improved quality consistency and controlled viscosity • Provided effective global EHS and regulatory support • Enhanced the dispersion of pigments used by customer • Offered dynamic customer service and rapid technical response CORE™ Non-Phthalate Plastisols KEY REQUIREMENTS WHY AVIENT?

NORBERT MERKLEIN Vice President and General Manager EMEA, Color, Additives and Inks Norbert Merklein serves as vice president and general manager for the Europe, Middle East and Africa (EMEA) region of Color, Additive and Inks at Avient Corporation, a premier provider of specialized and sustainable material solutions and services. He has more than 35 years of experience in global leadership roles in the chemicals industry.

We are reviewing, with a target to implement for 2024, appropriate KPI’s for Avient’s global approach for supply chain due diligence. The Avient ethics hotline is available globally to make a web-based or telephonic report, with multi- language capabilities, 24 hours a day, seven days a week. The hotline is operated by an external professional service company and ensures anonymity.

Products & Services and Markets Opportunities S M L Avient's role in producing innovative and low-emissions materials through light- weighting, creation of sustainable infrastructure, and advanced recycling technologies is instrumental in the global transition. We are positioned to capture enhanced market share over expanding and emerging needs that will also enable climate resiliency High revenue growth opportunities to meet demand for highly efficient chemical materials that will contribute to lowering customers' emissions as part of our Sustainable Solutions label High to moderate revenue growth opportunities for new chemical materials pertinent to Avient's customers' strategies (low-carbon and otherwise) and are in compliance with any existing regulations (i.e., VOC reducing materials that address vehicle air quality standards) Impact Legend Time horizon Legend Low impact S - short-term 0-5 years Moderate impact M - medium-term 5-15 years High impact L - long-term 15-30 years BUSINESS IMPLICATIONS AND STRATEGIC RESPONSES BUSINESS IMPLICATIONS AND STRATEGIC RESPONSES IMPACT DRIVER & TIME HORIZON Policy & Legal Risk M L Technology Risk S M Market Risk S M Reputation Risk L Acute & Chronic Risk L IMPACT DRIVER & TIME HORIZON Resource Efficiency Opportunity S M L Energy Source Opportunity M L Products & Services and Markets Opportunities S M L · We have embedded an energy intensity KPI (covering process and builidng efficiencies) into the incentive structure for all employees We partner with EcoVadis to evalute our prioritized suppliers on environmental, social, and governance requirements aligned with the UN Global Compact principles

Ask the individuals to bring in a competitive device they currently use . Figure 15: USee™ validation process USee™ is a trademark of Global Vision 2020, Inc . Our design, engineering and technical services can support every step of your new product development process .

The GeonTM brand name carries strong recognition globally. Globalization allows us to service our customers with consistency wherever their operations might be around the world. The GeonTM brand name carries strong recognition globally.

Boundaries of the reporting company GHG emissions covered by the verification: • Operational Control • Global Exclusions: • Fugitive refrigerants from units Energy: o Diesel Fuel Consumption: 2,868,323 kWh o Natural Gas Fuel Consumption: 178,696,287 kWh o Renewable Energy Consumed - Self Generated (solar): 681,059 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,385,048 kWh o Grid Electricity Consumed: 409,650,679 kWh o Renewable Energy Credits (REC) Purchased: 112,413,420 kWh o Renewable Electricity Consumed – Offsite: 138,415,253 kWh Page 2 Period covered by GHG emissions verification: • January 1, 2023 to December 31, 2023 Global Warming Potential (GWP) and emission factor data sets: • IPCC GWP: AR6 • USEPA Emission Factor Hub, released 2024 • USEPA eGRID, released 2024 • Final Rule (40 CFR 98) - Industrial Sector 2013 • DEFRA, released 2023 • IEA, released 2023 • European Residual Mix, released 2022 v2.0 GHG Reporting Protocols against which verification was conducted: • World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD) Greenhouse Gas Protocol, Corporate Accounting and Reporting Standard, Revised Edition (Scope 1 and 2) and the GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Standard • WRI/WBCSD Corporate Value Chain (Scope 3) Accounting and Reporting Standard Verification Protocols used to conduct the verification: • ISO 14064-3 Second Edition 2019-04: Greenhouse gases - Part 3: Specification with guidance for the verification and validation of greenhouse gas statements • Apex’s standard procedures and guidelines for external Assurance of Sustainability Reports and International Standard on Assurance Engagements (ISAE) 3000 Revised, Assurance Engagements Other than Audits or Reviews of Historical Financial Information (effective for assurance reports dated on or after Dec. 15, 2015), issued by the International Auditing and Assurance Standards Board. Statement of independence, impartiality and competence Apex is an independent professional services company that specializes in Health, Safety, Social and Environmental management services including assurance with over 30 years history in providing these services.

Garratt is senior vice president, president, Color, Additives & Inks for the Europe, Middle East and Africa (EMEA) region at Avient Corporation, a premier provider of specialized and sustainable material solutions and services. For 10 years he worked for DuPont Dow Elastomers, a global joint venture, where he held market development and product management positions, culminating in a regional commercial leadership role for Europe, the Middle East and Africa, while based in Geneva, Switzerland and Bad Homburg, Germany.

M E D I C A L E Q U I P M E N T M A N U FA C T U R E R C L O S E D S Y S T E M D R U G T R A N S F E R D E V I C E • A new material for a seal inside the next generation of closed system drug transfer device • Compliance with stringent regulatory standards: • Biocompatibility to ISO10993 • USP VI compliance • Provided regulatory support services and expertise throughout extensive medical approval process • Provided a custom formulation compliant with the highest healthcare regulatory standards • Enabled material to be manufactured and shipped globally Custom Versalloy™ HC 9220-90 Formulation KEY REQUIREMENTS WHY AVIENT?