Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude. Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016 2017 2018 Net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 Joint venture equity earnings, after tax (19.0) (14.7) (3.7) — — — — — — — Special items, before tax(1) (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 Special items, tax adjustments(1) (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation 1) 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; 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.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management uses operating income excluding special items, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures in certain cases throughout this presentation. Senior management uses operating income excluding special items, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management uses operating income excluding special items, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

SHEET PRODUCERS RAW MATERIAL SUPPLIERS PET BOTTLE PRODUCERS PET PREFORM PRODUCERS THERMOFORMERS BRANDOWNERS RETAILERS CONSUMERS LOCAL WASTE MANAGEMENT SORTING COMPANIES RECYCLING COMPANIES REGULATION BODIES NIAS COMPLIANT Why is PET so Popular? Market Size and Drivers In 2020, the global rPET market was valued at $8.56 billion with Asia Pacific as the largest regional market, accounting for over 45% revenue share. PET Types Clear PET—Clear PET accounted for over 76% of the revenue share in 2020 and is expected to continue as the market leader.

Avient includes in its Code of Conduct and Supplier Code of Conduct internal accountability standards related to slaver y and human trafficking to which all employees, agents and consultants are required to adhere. This tool encourages investments in low-carbon & carbon-free technologies while increasing the visibility of, and encouraging accountability for, the impact of carbon emissions on the business. Our waste management approach adds value by reducing the risk of environmental harm, as well as costs associated with waste management.

Every Avient associate is accountable for these objectives, which is why we have aligned 20% of our 2022 annual incentive plan with ESG metrics (see details on page 5). For 2022 we have added ESG performance metrics, which now account for 20% of our associates’ Annual Incentive Plan. We know that this will take a lot of work and since 2050 is just around the corner, rapid action and accountability is needed.

Management believes this provides comparability of the performance of the combined businesses. Senior management also uses operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance.

Within this new platform, our range of engineered composite technologies is virtually unmatched, spanning pultrusion, pull winding, CRTM™ panels, sandwich panels, and multilayer laminates in both thermoset and thermoplastic resins,” said Matthew Borowiec, general manager, PolyOne Advanced Composites. Photo Caption: Matt Borowiec, general manager, PolyOne Advanced Composites Photo ©PolyOne Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Our company is always on the lookout for innovative new materials to help us improve our manufacturing efficiency and the quality of our products,” explained Zafer Alkan, general manager of Akboru Elektrik. Our Therma-Tech materials are rapidly becoming an industry standard for metal replacement in LED lighting systems, and we are pleased that Akboru Elektrik collaborated with us on this successful product launch,” said Holger Kronimus, vice president Europe and general manager, Specialty Engineered Materials, Europe at PolyOne. Media contact  Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com