PolyOne was the clear, best choice.   About PolyOne Media contact Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. The Company acquired the Clariant Color business on July 1, 2020.

About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. To access PolyOne’s news library online, please go to www.polyone.com/news Marketing Communications Manager, Asia PolyOne Corporation +86 21 6028 4888 jennifer.huang@avient.com

PolyOne is exhibiting at Fakuma in Hall B5, Stand 5316. About PolyOne Marketing Communications Manager, Europe PolyOne Corporation

PolyOne will conduct an educational event for customers today, followed by the grand inauguration of the new TPE line and Technology Centre at the PolyOne plant in Pune. About PolyOne Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Attachment 1 1) Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

PolyOne is delighted to be part of this American success story,” said Charles Page, global marketing director, PolyOne GLS. About PolyOne PolyOne Corporation, with 2014 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Sandy Wagner Marketing Communications Manager PolyOne GLS Thermoplastic Elastomers +1 815-385-8500 sandy.wagner@avient.com

June 1, 2018 Investor Relations Contact: Joe Di Salvo, Vice President, Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.diSalvo@PolyOne.com; Media Contact: Kyle G. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

December 1, 2023 December 1, 2023 Rose, Vice President, Marketing and Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

About PolyOne Photo Copyright:  ©PolyOne Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com