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NICKEL 1 ABS451 967685UV NEU-100i MAMMOTH/HS/1827 10:1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

MIDNIGHT BLUE V10 1% MIDNIGHT BLUE V11 @1% Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

REDPWDMB (1% Macrolex Red E2G) BLUPWDMB (1% Blue K- 6903) Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

X ET-16263-04-1 X ET-16351-05-1 NAT Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

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

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DNU Geon(TM) MNE30-186-1 G903 Geon(TM) MNE31-11-1 LAM ADH Geon(TM) MNE31-21-1 NEUTRAL