In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. WHAT WE DO: MATERIAL SCIENCE 5 CUSTOM FORMULATION SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2021 $310 205 140 80 75 45 40 20 $915M2021 Sales *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 6 S E CO N D Q UART E R 2022 RE S U LT S $122 $134 $0.87 $0.98 Q2 2022 PERFORMANCE (TOTAL COMPANY) 8 Sales Adjusted Operating Income $1,235 $1,302 + 5% Adjusted EPS + 10% + 13% (in millions) (in millions) (+ 10% excluding FX) (+ 16% excluding FX) (+ 20% excluding FX) Q2 2022 SEGMENT PERFORMANCE 9 CAI $624 $649 SEM Distribution $86 $94 + 4% + 9% $404 $443 $24 $27 + 10% + 13% $241 $244 $37 $37 + 1% Flat (+ 10% excluding FX) (+ 16% excluding FX) (+ 6% excluding FX) (+ 3% excluding FX) Q2 2021 $1,235 $122 Sustainable Solutions 17 7% 7 Healthcare 23 14% 5 Composites (ex Outdoor High Performance) 10 20% 4 Growth in Asia / LATAM 5 3% 1 Other 69 11% 5 Sub-total $1,359 10% $144 Outdoor High Performance Impact (9) (5) Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (48) (7) Q2 2022 $1,302 5% $134 Q2 2022 SALES AND OPERATING INCOME (TOTAL COMPANY) 10 Sales Growth Rate Operating Income$ millions EBITDA Q2 EBITDA BRIDGE 11 Price increases more than offsets raw material and supply chain impacts Q2 2021 $ 159 Demand (29) $ millions CAI: Price / Mix 87 Inflation (58) SEM: Price / Mix 36 Inflation (24) Distribution: Price / Mix 45 Inflation (41) Net Price Benefit 45 Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (7) Q2 2022 $ 170 China Lockdowns / Russia Impact $ (14) Outdoor High Performance (5) Transportation (5) 12 Q2 '21 Adjusted EPS 0.87$ Color, Additives and Inks 0.11 Specialty Engineered Materials 0.01 Distribution 0.03 Corporate Costs 0.01 F/X (0.05) Segment OI 0.11$ Interest Expense 0.03 Tax Rate (0.03) Q2 '22 Adjusted EPS 0.98$ Q2 EPS BRIDGE Key Updates • Provided progress on 2030 Sustainability Goals • Emphasized commitment to U.N. D ISTR IBU TIO N ) 22 END-MARKET FOCUS FOR NEW INNOVATION Semiconductors Robotics Healthcare Interconnected disruptive markets with massive innovation needs 23 APPENDIX Performance Additives Pigments TiO2 Dyestuffs 3%Polyethylene Nylon 6% Polypropylene Other Raw Materials 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 30 • Significant raw material price inflation and tight inventory continued in Q2 2022, although at a slightly lesser rate compared to the prior quarter o For Q2 2022, the average cost of key hydrocarbon based materials was up 15%, roughly the same as the average cost of non- hydrocarbon based materials

If a present or future law, governmental decree, order, regulation, or ruling under any existing or future legislation prevents Seller from increasing or revising the price as provided herein, or nullifies or reduces any price or price increase hereunder, upon written notice from one to the other Seller and Buyer will attempt to identify mutually agreeable changes to conform their contract with such law, decree, order, regulation, or ruling. Seller may change the price and/or terms of delivery and shipment at any time up until delivery, except where a written alternative pricing mechanism exists that is signed by Seller. Buyer acknowledges and represents that it is familiar with and shall strictly comply with all applicable laws and regulations concerning the trade, export or re-export of products, services, data or technology (“Items”), including the International Traffic in Arms Regulations (ITAR), the Export Administration Regulations (EAR) and the trade sanctions regulations administered by the U.S.

If a present or future law, governmental decree, order, regulation, or ruling under any existing or future legislation prevents Seller from increasing or revising the price as provided herein, or nullifies or reduces any price or price increase hereunder, upon written notice from one to the other, Seller and Buyer will attempt to identify mutually agreeable changes to conform these Terms with such law, decree, order, regulation, or ruling. Seller may change the price and/or terms of delivery and shipment at any time up until delivery, except where a written alternative pricing mechanism exists that is signed by Seller. Buyer acknowledges and represents that it is familiar with and shall strictly comply with all applicable laws and regulations concerning the trade, export or re-export of products, services, data or technology (“Items”), , including the International Traffic in Arms Regulations (ITAR), the Export Administration Regulations (EAR) and the trade sanctions regulations administered by the U.S.

GEON B8000 YELLOW (PRICING) GEON A8000 YELLOW (PRICING) Services

GEON A85U1 BLUE (PRICING ONLY) GEON B5500 CANVAS (PRICING) Services

Independent Registered Public Accountant Services and Related Fee Arrangements Report of the Audit Committee The Audit Committee of the Board of Directors Director Independence Lead Director Board Leadership Structure Board’s Oversight of Risk Code of Ethics, Code of Conduct and Corporate Governance Guidelines Communication with Board Board and Committees Board Attendance Board Committees AAudit Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 9 Compensation Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 5 MEMBERS: Nominating and Governance Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 4 Environmental, Health and Safety Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 3 Board Refreshment 0% 20% 40% 60% 80% 100% 5 or fewer 6 to 10 More than 10 Years of Service NON-EMPLOYEE DIRECTOR COMPENSATION 2018 NON-EMPLOYEE DIRECTOR COMPENSATION Role Annual Cash Retainers 2018 Director Compensation Table Fees Earned or Paid in Cash Stock Awards Total (1) NON-EMPLOYEE DIRECTOR COMPENSATION Fees Earned or Paid in Cash (column (a)) Stock Awards (column (b)) Option Awards Outstanding and Fully-Vested Deferred Shares Number of Deferred Shares(1) Beneficial Ownership of Our Common Shares Owned(1) Right to Acquire Shares Total Beneficial Ownership Name and Address Shares % of Shares Stock Ownership Guidelines for Non-Employee Directors Section 16(a) Beneficial Ownership Reporting Compliance Executive Summary Name Title How Pay is Tied to Company Performance. Other Benefits. 2018 Grants of Plan-Based Awards Estimated Future Payouts Under Equity Incentive Plan Awards Exercise or Base Price of Option Awards ($/Sh) (i) Threshold Estimated Future Payouts Under Non- Equity Incentive Plan Awards (a) Grant Date Grant Date Fair Value of Stock and Option (j) Threshold Maximum All Other Stock Awards: Number of Shares of Stock or Units Estimated Future Payouts Under Non-Equity Incentive Plan Awards (columns (c), (d) and (e)) (1) 2018 Annual Incentive Program Payments (2) Cash-Settled Performance Units. Exercise or Base Price of Option Awards (column (i)) Grant Date Fair Value of Stock and Option Awards (column (j)) Narrative Disclosure Relating to the 2018 Summary Compensation Table and the 2018 Grants of Plan-Based Awards Table Outstanding Equity Awards at 2018 Fiscal Year-End Exercise Price Expiration Date Market Value of Shares or Units of Stock That Have Not Vested Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights that Have Not Vested (j) Stock Awards Equity Incentive Plan Awards: Number of Securities Underlying Unearned Options Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights that Have Not Vested (i) Number of Shares or Units of Stock That Have Not Vested Number of Underlying Unexercised Options (#) Unexercisable Number of Securities Underlying Options (#) Exercisable Option Awards Number of Securities Underlying Unexercised Options (#) Exercisable (column (b)) Number of Securities Underlying Unexercised Options (#) Unexercisable (column (c)) Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (column (d)) Option Exercise Price (column (e)) Option Expiration Date (column (f)) Number of Shares or Units of Stock That Have Not Vested (column (g)) Market Value of Shares or Units of Stock That Have Not Vested (column (h)) Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Vested (column (i)) Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Vested (column (j)) 2018 Option Exercises and Stock Vested Option Awards Stock Awards Acquired on Exercise Value Realized on Exercise Acquired on Vesting Value Realized on Vesting Option Awards (columns (b) and (c)) Stock Awards (columns (d) and (e)) 2018 Nonqualified Deferred Compensation Aggregate Executive Registrant Aggregate Aggregate Aggregate Balance at Contributions Contributions Earnings Withdrawals/ Balance at in Last FY in Last FY in Last FY Distributions Last FYE (1) ($)(2) ($)(3) ($)(4) ($) ($)(1)(5) Potential Payments Upon Termination or Change of Control Summary of Potential Payments Management Continuity Agreements Executive Severance Plan Annual Plan Long-Term Incentive Awards Retirement Benefits Payments and Benefits Upon Termination — As of the End of Fiscal Year 2018 CEO Pay Ratio Disclosure CEO Annual Total Compensation for 2018: $6,127,920 Median Employee Annual Total Compensation for 2018: $48,056 Ratio of CEO to Median Employee Annual Total Compensation for 2018: 128:1 How the Median Employee was Determined in 2017 Compensation Committee Interlocks and Insider Participation Policy on Related Person Transactions Risk Assessment of the Compensation Programs Compensation Committee Report The Compensation Committee of the Board of Directors MISCELLANEOUS MISCELLANEOUS PROVISIONS Voting at the Meeting not Shareholder Proposals MISCELLANEOUS Proxy Solicitation We will furnish without charge to each person from whom a proxy is being solicited, upon written request of any such person, a copy of the Annual Report on Form 10-K of the Company for the fiscal year ending December 31, 2018, as filed with the SEC, including the financial statements and schedules thereto.

They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. items, include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. 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; • our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; • 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; • 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, tariffs, and any recessionary conditions; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.” Offsetting any inflationary headwinds with our time-tested rigor in raw material sourcing, substitution and pricing actions 6.

They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. items, include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. 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; • our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; • 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; • 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, tariffs, and any recessionary conditions; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.” Offsetting any inflationary headwinds with our time-tested rigor in raw material sourcing, substitution and pricing actions 6.

The Company noted it will provide more details on its 2021 outlook during the webcast scheduled for Webcast Details The webcast can be viewed at avient.com/investors, or by clicking here: https://edge.media-server.com/mmc/p/ko4y5g9z.

MSCI SERVICES AND DATA ARE THE PROPERTY OF MSCI OR ITS INFORMATION PROVIDERS, AND ARE PROVIDED ‘AS-IS’ AND WITHOUT WARRANTY. MSCI NAMES AND LOGOS ARE TRADEMARKS OR SERVICE MARKS OF MSCI. Read more: https://www.issgovernance.com/esg/ratings/ http://www.sustainalytics.com/ https://www.sustainalytics.com/legal-disclaimers https://www.issgovernance.com/esg/ratings/