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NOTICE OF 2020 ANNUAL MEETING OF SHAREHOLDERS Thursday, May 14, 2020 9:00 a.m.

There is a broad spectrum of TPEs available that have higher flow lengths, however, there are some limitations at certain durometers—particularly with harder formulations that measure greater than 50 Shore A durometer.

Webcast Details Avient will host a webcast on Tuesday, July 26, 2022 at 8:00 a.m.

TPE materials are quantified based on Shore hardness, which is a material’s resistance to indenture on a 6.3- mm minimum thickness molded plaque (ASTM D2240).

Building off our strong performance in 2024, I remain optimistic in our team’s ability to achieve the long-term financial targets we shared at Investor Day last December.” 3 Webcast Details Avient will provide additional details on its 2024 fourth quarter and full year results, as well as its 2025 full year outlook during its webcast scheduled for 8:00 a.m.

The loss of a soft-touch feel in thinner overmolds will be especially pronounced in low-durometer materials such as the 3, 13 and 33 Shore A materials shown in Figure 10 .

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