X ET2010-0014 Blue Trans PantoneT255-1-1 X ET2010-0015 Red Trans Pantone T085-1-1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

1. 70° C  22 hrs, 70 hrs, 168 hrs (1 week), 1000 hrs (42 days) 121° C  22 hrs, 70 hrs, 168 hrs (1 week), 1000 hrs (42 days)

1. 70° C  22 hrs, 70 hrs, 168 hrs (1 week), 1000 hrs (42 days) 121° C  22 hrs, 70 hrs, 168 hrs (1 week), 1000 hrs (42 days)

These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Cor- poration and its affiliates (“Seller”). 1.

8:00 a.m. to 1:00 p.m. Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Trade Media Contact: Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Trade Media Contact: Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Attachment 1 Special items (1) 1)

EPS(1) EPS(1) 1)

1)    Aesthetics Visual choices of parts are typically tailored to the type of raw material used to formulate the final product. 1)    What are your sustainability goals? 1)    Sustainable color possibilities: