ARACHNID BLACK.AD-1 262-90060-1 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)

X GV #SR-13770-1 Silver X GV #SR-13770-3 Patina 1 of 2 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

Hostacom X M2 T12 356036 Midnight Gray 1 EFFECT 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)

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

BLUE Q-310-1-1 (PC) Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

September 1, 2022 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

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