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

per share (see Attachment 1). Attachment 1 Special items (1)

BLUE # 1 T-225-1-3 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

UV WHITE WALL M6306-1 ONFLEX-V EXP # 800-404-1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

SILVER SPD 1 ASA SILVER SPD 1 PE/PP Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

PINK T075-1-4 HC-14696-01-1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

TRSP T095-1-1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

ROSEWOOD T095-3-1 TRITAN PURPLE TUBE BV4-1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

Internal 1 Pack MB-3P E3360 GRAY 2822 Gatorade Orange Rev. 1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

X GT-16424-01-1 ROUGH GREEN VERSION 1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)