075YE2006 YELLOW 3 ELEPHANT GREY 1 OCEAN 4 PC

YELLOW PBT 4% V-48-1-3 (PPRO) Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

GREEN 2272C LM 3 GREEN 2272C LM 4 IONIX MILLED DISPERSION-1

GRAY Q716-1-3 WHITE CD767 - 4% Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

SLATE GREY 3 TRI SMOKE TINT T705-1-4 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

TR.SMOKE T705-1-2 GREY SILVER 4% HMS SEASHELL 3

MC-73424AB WHITE 831355/C1393 Q710-3-5 MC-87295AB GRAY 831356/C1394 Q728-1-4 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

The company noted that full year 2024 GAAP EPS includes special items of $0.17 (see attachment 3) and $0.65 of intangible amortization expense (see attachment 1). See Attachment 3 for a definition and summary of special items. See Attachment 3 for a definition and summary of special items.

October 4, 2019 Investor Relations Contact: Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

February 4, 2015 Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Media Contact: Kyle Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com