MC-23942PE LOTUS GREEN W/ 1 YR UV MC-24838PP LOTUS GREEN W/ 1 YR UV MC-24841PP CALYPSO W/ 1 YR UV

1BLUE, PANTONE T-235-1-1 BLUE, PANTONE T-215-1-3 PURPLE, PANTONE-T-205-1-3

GRAY.1 DK.GREEN.1 BLUE.1

PLATA 472-30411-1 AZUL 293C 485-31944-1 BLUE 485-3403-1

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)

B-273 STONE GREY PP 1% ZHEA EBONY 25:1 CDB210 V1 X LB 33463-1-1

X ST-18749-001-1 X LB 20965-001-1 STAN-TONE VCP- VIOLET #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

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

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