After the end of the provision of the processing services, the data importer shall, at the choice of the data exporter, delete all personal data processed on behalf of the data exporter and certify to the data exporter that it has done so, or return to the data exporter all personal data processed on its behalf and delete existing copies. It shall provide the supervisory authority with written confirmation that the necessary actions have been taken. It shall provide the supervisory authority with written confirmation that the necessary actions have been taken.

CLEVELAND – November 2, 2023 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today announced its third quarter 2023 results. The Company does not provide reconciliations of forward-looking non-GAAP financial measures, such as adjusted EPS and adjusted EBITDA, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 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.

Registration information to access the Sustainability Day event will be provided in a news release in advance of the event. The Company does not provide reconciliations of forward-looking non-GAAP financial measures, such as adjusted EPS and adjusted EBITDA, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 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.

Any samples or developmental material provided by Seller are provided “AS IS” with no warranty as to its performance and such samples or materials shall not create any warranty by sample, which is hereby waived. Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. The expiration or termination of this Term shall not affect such of the provisions of these Terms which are expressly provided to operate after any such expiration or termination, or which of necessity must continue to have effect after such expiration or termination, notwithstanding that the relevant provisions themselves do not provide for this. 27.

The radial coring provides a comfortable grip contour; however, it provides no interlocks for resisting axial loads. They generally provide the least friction. Our design, engineering and technical services can support every step of your new product development process.

Any samples or developmental material provided by Seller are provided “AS IS” with no warranty as to its performance and such samples or materials shall not create any warranty by sample, which is hereby waived. The act of providing a sample or developmental material does not operate as permission, recommendation, or inducement to practice any 3 herhangi bir buluşun uygulanması için izin, öneri veya teşvik olarak işlev görmeyecektir. Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. 11.

Our services range from engineering support to industrial design, and we can help drive your project from concept to reality. MATERIAL DESCRIPTION HARDNESS COLOR OVERMOLD DENSITY (g/cm3) APPLICATIONS Versaflex™ HC 2110-35N 34A Natural PP/PE 0.89 Resealing, Elastomeric closures for injection Versaflex™ HC 2110-57B 57A Black PP 1.01 Syringe Plungers Versaflex™ HC MT224 75A Clear PP 0.89 Medical tubing Versaflex™ HC BT218 67A Translucent — 0.89 Weldable biopharmaceutical tubing Versaflex™ CL 2242 43A Clear PP 0.89 Overmolding for Versaflex™ CL 2250 50A Clear PP 0.89 Overmolding for Versaflex™ OM 1040X 40A Natural/Black PC/ABS OM 0.92 Overmolding for Versaflex™ OM 3060 60A Clear PC/ABS OM 0.90 Overmolding for FOOD GRADE TPEs Thermoplastic elastomer suitable for use in contact with food • Made without bisphenol A (BPA), phthalates, or heavy metals; select grades compliant with FDA, EU10/2011 and China GB4806 • Resists bites and tears; many are tested and safe to use in microwaves and dishwashers • Can be overmolded to provide a soft touch grip and customized to specific comfort requirements including vibration and noise reduction • Can be injection molded and overmolded right onto a substrate including PP, ABS, etc 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.

Avient will provide additional details on its 2022 fourth quarter and full year performance and 2023 outlook during its webcast scheduled for 8:00 a.m. The Company does not provide reconciliations of forward-looking non-GAAP financial measures, such as adjusted EPS and adjusted EBITDA, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. Management believes this provides better comparability of the performance of the combined businesses.

Page 6 July 19, 2007 They are usually classified by the service temperature and oil resistance describing their performance as per ASTMD 2000 classification as in Figure 6. Overmolded TPEs can also provide functionality beyond feel and ergonomics. Examples include providing a safe strong grip in wet environments, waterproofing gaskets and seals, molded-in “bumpers” to provide impact resistance to prevent premature breakage, and vibration damping.

Avient will provide additional details on its 2024 first quarter and 2024 outlook during its webcast scheduled for 8:00 a.m. The Company does not provide reconciliations of forward-looking non-GAAP financial measures, such as adjusted EPS and adjusted EBITDA, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.