I'm extremely proud of our team's focus and execution to work through these challenges, while at the same time completing the acquisition of Clariant's masterbatch business, the largest acquisition in our company's 20-year history," Mr. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include the impact the COVID-19 pandemic has on our business, results from operations, financial condition and liquidity; our ability to achieve the strategic and other objectives relating to the acquisition of Clariant's color and additive masterbatch business, including any expected synergies; our ability to successfully integrate Clariant's color and additive masterbatch business and achieve the expected results of the acquisition of Clariant's color and additive masterbatch business, including, without limitation, the acquisition being accretive; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply, and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to raise or sustain prices for products or services; an ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, costs reductions and employee productivity goals; information systems failures and cyberattacks; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

While work remains to improve and grow our DSS segment, our businesses are well positioned for growth, and we are focused on achieving our 2020 Platinum Vision.  Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates; amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; our ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired businesses into our operations, such as Comptek, SilCoTec, Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; the speed and extent of an economic recovery, including the recovery of the housing market; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; an inability to maintain appropriate relations with unions and employees; our ability to continue to pay cash dividends; the amount and timing of repurchases of our common shares, if any; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

We have worked hard to reposition our portfolio for sustainable growth, and it's clearly translating to improved performance," added Mr. Comptek, SilCoTec, Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; our ability to continue to pay cash dividends, including at the increasing rate, which will be subject to, among other factors, market conditions, our cash flow and cash requirements and restrictions contained in any of our debt agreements; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

Richardson said, "Our focus on working capital management and conversion of our accelerating earnings drove $71 million in free cash flow, giving us $264 million in cash as of September 30, 2014. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: our ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates, amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; our ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies and retain relationships with customers of acquired companies including, without limitation, Spartech Corporation; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; the speed and extent of an economic recovery, including the recovery of the housing market; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; an inability to maintain appropriate relations with unions and employees; our ability to continue to pay cash dividends; the amount and timing of repurchases of our common shares, if any; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work. Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice. Supporting Diversity and Inclusion — All associates are valued and encouraged to bring their true selves to work every day, and ensuring equal access and opportunity will contribute to our organization’s success.

These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work. Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice. Supporting Diversity and Inclusion — All associates are valued and encouraged to bring their true selves to work every day, and ensuring equal access and opportunity will contribute to our organization’s success.

These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work. Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice. Supporting Diversity and Inclusion — All associates are valued and encouraged to bring their true selves to work every day, and ensuring equal access and opportunity will contribute to our organization’s success.

Avient has the right to set off amounts it owes to Supplier or any of its Affiliates, against amounts which Supplier or any of its Affiliates owes to Avient. 3.3 To the extent Services are supplied at a reimbursable basis, Supplier shall keep records of all costs, expenditures and hours worked and shall provide Avient access thereto. 3.4 Supplier shall send its invoices to Avient (i) within five (5) working days after the date Supplier is entitled to payment under the Purchase Order and (ii) in any event no later than three (3) months after the end of the project/and or delivery of the Goods and/or performance of the Services. Supplier must, at its own cost, arrange for proper and safe transport and equipment, as well as skilled and qualified staff, able to speak the local languages and/or English, to work in a safe, healthy and environmentally responsible manner. Force Majeure Acts of God, fires, catastrophic floods, catastrophic storm, pandemics, epidemics, catastrophic failure of equipment essential to make or use Goods or provide Services, war, terrorism or other cause(s), in each case that are beyond the reasonable control of a Party, not reasonably foreseeable, not caused by acts or omissions of the Party affected and that could not reasonably have been avoided through a work-around plan, and which prevent Supplier from providing or procuring the Goods and/or Services, Avient from receiving or using Goods and/or Services or either Party from performing its obligations under this Agreement (“Force Majeure”), will suspend the affected Party’s obligations under this Agreement during the period required to remove such Force Majeure.

DISCLAIMER Avient Corporation 3 Avient Corporation 4 Welcome Bob Patterson Chairman, President, and Chief Executive Officer INTRODUCTION Sustainability for a Better Tomorrow Jamie Beggs 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 35 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 78% 78% 80% 80% 81% 78% 84% 83% 80% 79% 50% 55% 60% 65% 70% 75% 80% 85% 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023E 0 50 100 150 200 250 300 350 400 Fr ee C as h Fl ow C on ve rs io n 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 7% 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 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 Packaging Consumer Healthcare Defense Avient Corporation 12 10% 19% 8% 23% 4% 7% 7% 2006 2023E Other Industri es 78% Healthcare Consumer Packaging 22% 56% 14% 10% 43% 9% 2006 2023E Reduced Exposure to Cyclical End Markets End Market Diversification Transportation Building & Construction 57% 19% Defense IMPROVING PROFITABILITY AND EXPANDING MARGINS Avient Corporation 13 Adj. Avient Corporation 19 Sustainability is integral to achieving our vision, mission, and performance that: • creates a safe and accepting environment that empowers associates to perform to their fullest potential • gives back to the communities where we work and live • enables customers to innovate solutions that help make the planet more sustainable • protects the environment by addressing climate change, conserving natural resources and preventing pollution • actively manages risk for investors & yields financial performance Avient Corporation 20 EXTERNAL ALIGNMENT DEEPLY EMBEDDED IN OUR CULTURE Avient Corporation 21 MEGATRENDS OFFER OPPORTUNITIES FOR SUSTAINABLE SOLUTIONS Advancements in Technology Transformation of Municipalities Lifestyle Refresh Rethinking Globalization Evolution of Healthcare Avient Corporation 22 SUSTAINABILITY TRENDS DRIVING AVIENT’S GROWTH Changes in consumer behavior driven by climate change & desire to reduce plastics waste Consumers seeking to buy more sustainable products from more sustainable companies Brand owner and retailer demand to meet sustainability targets & needs Rising emphasis on preserving and protecting natural resources & human life Increased current and pending government legislation and regulations CONSUMERS WANT SUSTAINABLE PRODUCTS Source: Simon Kucher 2022 Avient Corporation 23 85% Consider sustainability when they purchase 60% Rate sustainability as a key criterion in purchasing decisions 34% Are willing to pay more for sustainable products 25% Average premium consumers are willing to pay for sustainable products PURPOSE-DRIVEN CONSUMERS NOW LARGEST SEGMENT Source: IBM / National Retail Federation 2022 Avient Corporation 24 “Purpose-driven consumers seek products and brands that align with their values and provide health and wellness benefits. Plastics Pact Post-Consumer Recycle (PCR) Color Predictive Tool Innovation Award, Winner: Plastics Industry Association Product Technology Innovation, Winner: Plastics Recycling Awards Europe 2023 Additive for Enhanced Recycling Innovation Award, Finalist: Plastics Industry Association Product Technology Innovation, Finalist: Plastics Recycling Awards Europe 2023 Service Innovation Enables Quality Recycle Product Innovation Enables PCR Claims + Low CO2 Product Innovation Protects Quality Recycle …are Growing at Twice the Rate as Conventional ProductsSustainably-Branded Products… Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords STAKEHOLDER INFLUENCE DRIVES DEMAND For Sustainable Products From Sustainable Companies Brand Owners Have committed to ambitious goals to achieve sustainability metrics Avient Corporation 77 Avient Corporation 78 SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 18 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 12% CAGR 3% CAGR Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 11% CAGR 8% CAGR Sources: McKinsey, Bloomberg, Grand View Research Avient Corporation 79 Increasing the use of recycled content Reducing weight to lower fuel consumption 2022 SALESDESCRIPTION $340M $310M $525M OUTCOMES Enabling customers to advance the circular economy Shrinking carbon footprint and decreasing emissions Making our planet a better place for all Using fewer natural resources; protecting human life $1,175MTOTAL SALES SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH AVIENT IS WELL-POSITIONED A Clean House Avient holds leading ratings on ESG matters of importance to customers, countries, and key stakeholders Leading Portfolio Our formulation expertise and materials are meeting the unique sustainability needs of our customers around the world in endless applications 8-12% Long-Term Growth RateAvient’s Sustainable Solutions Investing in Innovation 85% of our opportunity funnel is directed at sustainable solutions addressing unmet customer needs Avient Corporation 80 Avient Corporation 81 ADJUSTED EBITDA MARGIN EXPANSION • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 16.0% 17.3% 20% 20.0% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $19 million raised since 2007 Diversity & Inclusion PEOPLE AND CULTURE Avient Corporation 82 Avient Corporation 83 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture LONG-TERM OBJECTIVES Avient Corporation 84 Wrap Up and Q + A Bob Patterson Chairman, President, and Chief Executive Officer Avient Corporation 85 Investor Deck_9_19_23 v4_WEBSITE_GAAP.pdf 2023 SR Non-GAAP Rec v3

These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work. Being a Great Place to Work — We listen to feedback from our associates then take action in building our high-performance culture and being a global employer of choice. Supporting Diversity and Inclusion — All associates are valued and encouraged to bring their true selves to work every day, and ensuring equal access and opportunity will contribute to our organization’s success.