Conflicts of Interest Directors are expected to be free of outside interests that conflict with the best interests of the Company. They are expected to act solely on behalf of the Company and not be influenced by a personal interest that may result from other individual or business concerns. Director Stock Ownership The Board believes that, in order to align the interests of directors and shareowners, directors elected by the holders of the Company’s common shares should have a meaningful personal investment in the Company.

UL 94 V-2, V-0, 5VA ratings and elevated RTI ratings UL 444 & Yellow Card ratings Non-halogen, UL94 V-2, and V-0 rated formulations

CDP SUPPLIER ENGAGEMENT RATING REPORT 2021 YOUR SER Average performance A- B- B- B- Trading, wholesale, distribution, rental & leasing North America Global Average CDP SUPPLIER ENGAGEMENT RATING REPORT 2021 CATEGORY SCORES Please download the ‘CDP Supplier Engagement Rating Introduction’ for more information on the category ratings. Each category rating in the bar chart represents the progression within each rating level. Rating categories are groupings of questions and are subgroups of the 2021 questionnaire.

Personal Values Integrity. 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. 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 11 F U T U R E G ROW TH I N E XC E S S O F G D P I S D R I V E N B Y: Our company is positioned to sustainably grow at a rate that exceeds GDP.

The Board recognizes that some transactions, arrangements, and relationships present a heightened potential for conflicts of interest (or the perception of conflicts of interest) and, therefore, has adopted a written Related Person Transactions Policy (the “Policy”) governing these transactions. Khandpur whose eligibility was pro-rated to reflect his partial year of service. For purposes of this table and threshold level disclosure, we assumed that the lowest weighted portion of a metric achieved the threshold level of attainment.

Thank you for your interest in our company, and I hope you enjoy reading this Sustainability Repor t. Personal Values Integrity. Workforce Health & Safety (1) Total recordable incident rate (TRIR) and (2) fatality rate for (a) direct employees and (b) contract employees RT-CH-320a.1 1.

Thank you for your interest in our company, and I hope you enjoy reading this Sustainability Repor t. Personal Values Integrity. Workforce Health & Safety (1) Total recordable incident rate (TRIR) and (2) fatality rate for (a) direct employees and (b) contract employees RT-CH-320a.1 1.

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; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • 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 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • 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, geopolitical conflicts and any recessionary conditions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2023, under Item 1A, “Risk Factors.” All Rights Reserved 2024 57 ...and doing our part INDUSTRY SUSTAINABILITY STANDARDS ESG * RATINGS PERFORMANCE 1 2 5 17th INDUSTRY SUSTAINABILITY STANDARDS ESG * RATINGS PERFORMANCE 1 2 5 17th Copyright © . Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2006 2023 Sales $ 2,622.4 $ 3,142.8 Net income from continuing operations – GAAP $ 133.5 $ 76.3 Income tax expense 29.7 11.0 Interest expense, net 63.1 115.3 Depreciation and amortization from continuing operations 57.1 188.8 EBITDA from continuing operations 283.4 391.4 Special items, before tax (34.0) 114.6 Interest expense included in special items — (2.3) Depreciation and amortization included in special items — (1.9) JV - equity income (107.0) — Adjusted EBITDA $ 142.4 $ 501.8 Adjusted EBITDA as a percent of sales 5.4 % 16.0 % 1 Avient Investor Day_Dec 2024_Wednesday morning edition.pdf Investor Day - Dec24 - Non-GAAP v4 12.03.24 545PM.pdf Attachment

Personal Values Integrity. 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. 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 11 F U T U R E G ROW TH I N E XC E S S O F G D P I S D R I V E N B Y: Our company is positioned to sustainably grow at a rate that exceeds GDP.

Interested in reaping the benefits of converting a painted part to a molded-in color (MIC) part? If you are a manufacturer who is interested in the applicability of a MIC strategy or has felt challenged with predicting and understanding your final part aesthetic, this webinar is for you.