Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT Avient Region North America Country United States of America Questionnaire Chemicals Activity Group Trading, wholesale, distribution, rental & leasing The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels. CDP SCORE REPORT - CLIMATE CHANGE 2021 Your CDP score Average performance B C C B- Trading, wholesale, distribution, rental & leasing North America Global Average CDP SCORE REPORT - CLIMATE CHANGE 2021 CATEGORY SCORES If a company scored C or below, they will not have been scored for management or leadership points (the dark purple line represents this). Some categories have not been included for category score breakdown as either not enough questions feed into these categories to give a representative score or they are not scored at Management and Leadership levels.

Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT Avient Region North America Country United States of America Questionnaire Chemicals Activity Group Trading, wholesale, distribution, rental & leasing The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels. CDP SCORE REPORT - CLIMATE CHANGE 2021 Your CDP score Average performance B C C B- Trading, wholesale, distribution, rental & leasing North America Global Average CDP SCORE REPORT - CLIMATE CHANGE 2021 CATEGORY SCORES If a company scored C or below, they will not have been scored for management or leadership points (the dark purple line represents this). Some categories have not been included for category score breakdown as either not enough questions feed into these categories to give a representative score or they are not scored at Management and Leadership levels.

Our collections draw from global megatrends and insights in color research to develop palettes that capture the current zeitgeist for designers and developers.” Color Inspirations 2017 is a foundational element of InVisiOSM Color and Design Services, which leverage comprehensive color and materials resources to drive innovation in plastic product development. Whether developing a new color range or adapting existing colors to accommodate a new phase in a product lifecycle, innovators can work with InVisiOSM services throughout the design development process to bring their vision to life.

Recent developments in laser marking equipment allow manufacturers to run wire and cable production lines at rates up to 400 meters/minute. For manufacturers, this development means they can increase production rates while also maintaining the excellent quality of their laser marking. Gary Fielding, global marketing director for PolyOne Color and Additives, notes, “PolyOne has long been a leader in development of laser-sensitive additive formulations, and these new developments are further proof of that.

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 Masterbatch business, including any expected synergies; our ability to successfully integrate Clariant's Masterbatch business and achieve the expected results of the acquisition of Clariant's 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; our ability to continue to pay cash dividends including at the increased rate; the amount and timing of share repurchases, if any; 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. Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures, including adjustments related to contingent consideration; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non- recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results.

Avient’s application development and technical service (ADTS) capabilities include: Ergonomic development Process optimization The product development process does not end with design and testing.

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.

HC360 magazine selected PolyOne as one of the outstanding leading brands committed to promoting the development of China’s plastics industry over the last year. Rob Bindner, vice president of PolyOne Asia, explained, “By working with our customers, we develop an in-depth understanding of their market and application needs. This knowledge allows us to develop innovative solutions that help customers increase profitability and gain market share.

Developed in Europe based on our Versaflex formulations. Developed in Asia based on our Versaflex formulations. Developed in Asia based on our Dynalloy formulations.

Concept Development Film & Printing Development Pilot Tool Development