Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Avient Corporation 105 Potential Disruptive Markets Semiconductors Robotics Healthcare Artificial Intelligence How do we find / create potential opportunities in these markets? It’s how we innovate best for them.

UV and Light Blocking Additives See how our specially formulated colorants can help differentiate your brand

However, it is complex and requires advanced data to more accurately predict how a material will realistically perform in an end-use application. By using mold filling simulation and Digimat to evaluate several options, we can account for manufacturing variation when performing long fibre structural analysis. In addition to providing a robust way to account for differing gate locations from the manufacturing process, Hexagon’s Digimat multiscale modelling approach provides significant improvements in the accuracy of the stiffness and failure.

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MATERIAL BREAKTHROUGH: VERSAFLEX™ CE BLUE JEAN STAIN RESISTANT TPES FOR WHITE OR LIGHT-COLORED PHONE CASES Phone case brands have struggled to design white or light-colored cases that do not stain when in contact with blue jeans. Processing conditions can cause material properties to shift from the values stated in the information. Processing conditions can cause material properties to shift from the values stated in the information.

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For example, on average, Americans now check their cell phones 47 times per day1—that’s a lot of times to touch a phone case that has been shown to carry 10x more bacteria than a toilet seat2! Processing conditions can cause material properties to shift from the values stated in the information. Processing conditions can cause material properties to shift from the values stated in the information.

Some of the information arises from laboratory work with small-scale equipment which may not provide a reliable indication of performance or properties obtained or obtainable on larger-scale equipment. Processing conditions can cause material properties to shift from the values stated in the information. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product.

Patterson said, “We plan to host a live webcast to highlight current demand trends for sustainable solutions and how we help our customers reach their sustainability goals. Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2023 2022 Sales $ 845.7 $ 892.2 Operating Income 57.1 102.2 Net income from continuing operations attributable to Avient shareholders 20.8 64.4 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.23 $ 0.70 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.23 $ 0.70 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

UV and Light Blocking Additives When additives are not specifically designed for use in PET, they can migrate from the polymer matrix and form tiny deposits.