June 1, 2021 June 1, 2021 Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@polyone.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

Microsoft Word - Terms and Conditions - Argentina (12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. TÉRMINOS Y CONDICIONES Estos términos y condiciones regulan la venta de Productos a terceros (el “Comprador”) por parte de Avient Corporation y sus filiales (el “Vendedor”). 1.

LIQUID COLOR RED 483-10468-1 LIQUID COLOR GREEN 484-11098-1 LIQUID COLOR AMBAR 489-10360-1

PRE-BLUE ABS Q310-1-1 PRE-BLUE X1000 T225-1-4 PRE-BLUE X1001 T225-1-4

AMARILLO 1 BLANCO 1 VERDE 1

X LB 32449-3C-1-2 X LB 32449-3C-1-3 X LB 32449-3C-1-4

MC-50286PE CL.BRN.1 MC-50342PE CL.DBN.1 MC-50397PE CL.TAN.1

X ET2010-0015a Red Trans T085-1-1-4 X ET 2010-0013a Trans Purple T145-1-1-2 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

CL.NVY.1 W/REGRIND SUN BAKED 1-SHADE LT VERDE CLARO - P-0360-4-1 (V2)