Morgan Conference - 3/1/2022 PolyOne IR Presentation – May 2020 PolyOne IR Presentation - Longbow Basic Materials Conference - 3/1/2016

Morgan Conference - 3/1/2022 PolyOne IR Presentation – May 2020 PolyOne IR Presentation - Longbow Basic Materials Conference - 3/1/2016

DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Attachment 1 Special items (1)

Homepage // News Center // PolyOne Ultraviolet Light Barrier Technology Advances Packaged Food and Beverage Protection in China About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news

Homepage // News Center // Breakthrough Automotive Exterior Design Features Specialty PolyOne Color and Additive System About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news

OPQ BLUE AQUA OM 3252C OPQ PURPLE LIGHT OM 265C Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

Homepage // News Center // White is the New White: PolyOne Launches Wilflex™ Universal White Ink for Textile Screen Printing PolyOne developed a universal white ink to address this challenge. About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions.

Microsoft PowerPoint - PolyOne Investor Presentation 5.4.20_v8 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E •• •• •• JVs Performance Products & Solutions Distribution Specialty     To be the world’s premier provider of specialized polymer materials, services and solutions To be the world’s premier provider of specialized polymer materials, services and sustainable solutions • • • • • • • • • • • • • • 2016 2017 2018 2019 Lightweighting Reduced Material Requirements Improved Recyclability Renewable Energy Applications Eco-conscious Bio-derived Content Reduced Energy Use VOC Reduction $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth PolyOne Corporation 33 Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to PolyOne shareholders, excluding special items, to assess performance and facilitate comparability of results. 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 2018*** Q1 2019*** 2019 Q1 2020 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 $ 87.7 $ 22.4 $ 75.5 $ 33.1 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 58.7 12.2 61.7 9.6 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) (25.1) (1.2) (5.9) (1.0) 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 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 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 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * 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. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S).

PolyOne Unveils InVisiOSM Color Inspiration 2017 PolyOne Acquires Magenta Master Fibers December 1, 2015

Homepage // News Center // PolyOne Protects Polymer Textiles from the Sun, Letting Colors and Performance Shine Through About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news.