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

LIQUID COLOR WHITE 481-20544-1 LIQUID COLOR RED 483-20283-1 LIQUID COLOR GRAY 482-31182-1

CAMELBAK PMS T705-1-3 GRY CAMELBAK PMS T705-1-3 GRY PURPLE #185371 (BV4-1)

To participate in the audio-only portion of the call, dial 1-844-835-7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 4774915. To listen to this recording, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 4774915. Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

The call can be accessed via telephone by dialing 1-800-299-9086 (International: 1-617-786-2903) and entering Passcode 96405983. ET on March 12, 2014 by dialing 1-888-286-8010 (International: 1-617-801-6888) and entering Passcode 17240376. Rose Director, Corporate Communications PolyOne Corporation +1 440.930.3162 kyle.rose@avient.com

SISA ORANGE-1 ERZE ORANGE-1 GALAXY AMBER-1

X HC-451651A-1 X HC-450291A-1 X HC-44981-1A-1

X LB 34066-1B-1-0 X LB 34066-1B-1-2 X LB 34066-1B-1-4

November 1, 2022 Nov. 1, 2022 Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

GOLD (Q930-1-5) TRANSL BLUE PEARL T915-6-1 TRANSL PURPLE PEARL T915-5-1