About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news . Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

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

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

PolyOne Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

PolyOne Announces Third Quarter 2018 Results CLEVELAND, Oct. 1, 2018 /PRNewswire/ -- PolyOne Corporation (NYSE: POL) a premier provider of specialized polymer materials, services and solutions, October 1, 2018

About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news. Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Homepage // News Center // PolyOne Natural Fiber Materials and Metal Replacement Solutions Featured at Fakuma 2015 About PolyOne To access PolyOne’s news library online, please go to http://www.avient.com/news.

PolyOne Investor Presentation March 2017 POLYONE CORPORATION 2 Forward-Looking Statements  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010 2011 2012 2013 2014 2015 2016 Net income attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 165.2 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 35.5 Special items, tax adjustments(1) (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (20.7) Adjusted net income attributable to PolyOne common shareholders $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 180.0 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.13 Adjusted operating income is calculated as follows: 2006* 2016 Operating income $ 233.6 $ 281.9 Special items (1) (39.1) 35.3 Joint venture equity earnings (107.0) 0.0 Adjusted operating income $ 87.5 $ 317.2 * 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

PolyOne Showcases Industry-Leading Solutions at WIRE 2016 PolyOne Launches Specialty Automotive TPEs and Design Services in Europe March 1, 2016

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