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CLEVELAND – PolyOne today celebrated the unveiling and launch of its new corporate website, www.PolyOne.com. FRIEDRICHSHAFEN, Germany – PolyOne Corporation is featuring specialty solutions at the Fakuma trade show this week. Company Officers

CLEVELAND – PolyOne Corporation (NYSE: POL), a premier provider of specialized polymer materials, services and solutions, today announced that Bradl CLEVELAND - PolyOne Corporation (NYSE: POL), a premier provider of specialized polymer materials, services and solutions, today announced that Scott J Company Officers

Avient Corporation highlights sustainable innovations at NPE 2024, including Nymax™ REC Recycled Nylon Formulations, Versaflex™ HC BIO BT218 TPEs, Avient Corporation has expanded its LubriOne™ portfolio to include a range of innovative new internally lubricated polymer formulations produced wit Company Officers

PolyOne Corporation chairman, president, and chief executive officer, executive vice president and chief financial officer,

AVIENT CORPORATION COMPENSATION COMMITTEE CHARTER Membership • The Committee will consist entirely of directors who meet the definition of “independent” as set forth in the Corporate Governance Standards of the New York Stock Exchange, including the additional independence requirements set forth in New York Stock Exchange Listed Company Manual Section 303A.02(a)(ii) Review and approve corporate goals and objectives relevant to the Chief Executive Officer’s compensation; in conjunction with the evaluation conducted by the Board as described in the Company’s Corporate Governance Guidelines, evaluate the Chief Executive Officer’s performance in light of these goals and objectives; and determine and approve (or determine and approve, and recommend to the independent members of the Board for their determination and approval) the Chief Executive Officer’s compensation level based on this evaluation and comparable market data provided by an independent compensation consultant The Corporate Secretary or designee will be responsible for keeping minutes of the Committee meetings

Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Jennifer Huang Senior Manager, Marketing Communications Asia Avient Corporation +86 21 6028-4888 jennifer.huang@avient.com Company Officers

Avient Corporation’s PCR Color Prediction Service earns 2023 Re|focus Sustainability Innovation in Design Award by The Plastics Industry Association (PLASTICS). Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Goldman Sachs Basic Materials Conference May 21, 2014 • 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. The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2013Y 2014 Q1 Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 49.7 $ 57.2 $ 18.3 Global Color, Additives and Inks 4.3 28.1 37.7 104.0 30.4 Designed Structures and Solutions - - - 33.4 11.2 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 194.6 $ 59.9 Performance Products and Solutions 75.7 31.3 54.0 56.0 16.0 Distribution 19.5 28.1 42.0 63.3 17.2 SunBelt Joint venture 91.9 28.6 18.9 - - Corporate (51.5) (425.1) (27.7) (82.4) (36.7) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 231.5 $ 56.4 Less: Corporate operating expense 51.5 425.1 27.7 82.4 36.7 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 313.9 $ 93.1 Specialty platform operating mix percentage 2% 34% 43% 62% 64% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

Data on the senior officer(s) and person(s) entitled to representation 13/1. Company's mailing address: laszlo.mednyanszky@polyone.com 49.