This article discusses these issues and explores some of the innovative solutions being developed. To address these challenges, new additive technologies have been developed with recycling in mind. One example is Avient’s patented AA scavenger, ColorMatrix™ AAnchor™ Acetaldehyde Scavenger, developed to mitigate the issues associated with ATA-based solutions.

Together they developed a specially formulated pre-colored talc-filled Maxxam™ PP material incorporating OnCap™ CTR Process Optimization Additive. Specially developed automotive TPE polymers can keep those small spaces fresh Specially developed automotive TPE polymers can keep those small spaces fresh

Versaflex™ PF formulations are specially developed for the manufacture of co-extruded surface protective films Versaflex™ PF formulations are specially developed for the manufacture of co-extruded surface protective films (Chinese language version) Versaflex™ PF formulations are specially developed for the manufacture of co-extruded surface protective films

ColorForward™ 2026: an annual color trend forecasting guide for the plastics industry developed based on global societal trends to support the development of impactful aesthetics for new consumer products. It offers a set of 20 color concepts connecting with major developments in society, from alternative energy and artificial intelligence to nocturnal lifestyle Driving Sustainable Development in Flexible Packaging with Avient Non-PFAS Solutions (April 16, 10:30–10:50, Hall 16, Booth R31), 

Sustainable Development Goals • Updates sustainable solutions portfolio performance • Introduces latest Employee Resource Group (EMBRACE) focused on attracting and retaining racially diverse talent • Recognizes Avient as one of America’s Most Responsible Companies by Newsweek 2 0 2 0 S U STA I NA B I L I T Y R E P O R T 19 Reduce Scope 1 & 2 greenhouse gas emissions by 60%. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2 0 3 0 S U STA I NA B I L I T Y TA RG E TS 20 2 0 2 1 AV I E N T I N V E S TO R DAY 21 • Investor Day to be held December 9, 2021 in New York, NY • Company will provide updates on its key growth drivers with a deep focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team to also present on Clariant MB integration, M&A opportunities and capital allocation priorities PEER COMPARISONS 22 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 24 1.

A manufacturer of high-speed, electronic connectors for the telecommunications industry had a customer that needed a connector for a new, low-cost computer it was developing. Because they knew Avient could help, the connector company’s design engineers invited Avient into the development process. Avient’s development team went back to work and quickly developed a flame-retardant grade that meets UL requirements for a V0 rating.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 20 22 SUSTAI NA BILI TY REPORT 19 Avient Confidential 20 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 20 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLD ER INFLUENC E D RI VES D EMA ND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 21 A P P E N D I X 24 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RA W MATERI AL BA SKET PEER COMPARISONS AVI ENT I S ASSET LI GHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of August 17, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 26 3 2 3 3 4 4 3 4 5 5 7 7 9 10 A vi e n t K W R P P G F U L A V Y R P M F M C H U N C E E C L A S H H X L E M N S C L FR EE CA SH FLOW CONV ER SION Source: Peer data per Bloomberg as of August 17, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

If a supplier is designated as medium or high risk, improvement actions may involve – but will not be limited to – QF-05 completion, an on-site audit request, and/or QMS development. 3.3 Supplier On-Site Audit When deemed necessary, Avient will perform on-site supplier audits to verify suppliers’ compliance with this SQM. Any additional Avient business unit/site-level-specific design, development, and shipping requirements not covered within this SQM shall be communicated to and agreed upon with the supplier. 4.2 Nonconforming Material, Containment, and Supplier Corrective Action If an Avient facility or customer receive defective product, Avient shall notify the supplier of the nonconformance. The extent of the controls may vary, depending on the nature and complexity of the product and processes, but should normally include:  Evaluation and qualification of sub-tier supplier facilities  Avient and/or Avient’s customer, where applicable  Control of nonconforming material  Corrective action and preventive action programs  A continuous quality improvement program Where appropriate and agreed upon by the supplier, Avient may specify what sub-tier suppliers may be used, evaluate and qualify the sub-tier supplier’s facilities, and assist the supplier in controlling the sub-tier supplier.

Here are seven of the most popular delivery methods available to implement a solution in either a packaging or product program: The advantage of using a label-based program is that the technology is confined to a limited space and there is no change to the current manufacturing process.

work in designing and developing the USee™ self-refraction device for Unlike vision care in the developed world, the USee enables those with blurred vision to dial in their best optical acuity while viewing an eye chart, thus determining their correct prescription. For a video detailing this impactful project, click here: A Pioneering Vision Correction Solution for the Developing World