February 1, 2023 NEW DELHI, India – February 1, 2023 – For the first time in 5 years, Avient will participate in PlastIndia 2023, where it will be exhibiting its latest innovations and initiatives of sustainable and specialized material solutions for the plastics industry. Avient will exhibit at Hall 5/First Floor/Booth A5 at PlastIndia 2023 in Pragati Maidan, New Delhi, from February 1 to 5.

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

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General-purpose screw with compression ratio of 2:1 to 3:1 can be used Suggested nozzle diameters are 1/16" (0.0625" or 1.59 mm) to 3/16" (0.1875" or 4.76mm) To achieve the benefits of shear thinning the injection speed should be adjusted to fill the mold in 1 - 3 seconds.

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LIQUID COLOR AMBAR 489-10407-1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

454B POST IVORY SG899 33:1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

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

Internal 1 Pack MB-1P E1210HR WHT1271 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)