Revised: December 20, 2024 ANNEX A COVERED EMPLOYEES All Directors All Elected Officers All Appointed Officers Assistant Controller Executive Assistants to Covered Employees Corporate Communications/Investor Relations (all levels) Internal Audit VP, Directors, Managers and Staff of Audit (all levels), Tax Managers and Tax Analysts, Staff of Tax (all levels) Directors, Managers and Staff, Mergers and Acquisitions and functional professionals supporting Mergers and Acquisitions (including Legal professionals) All Other Employees (including Finance and IT employees) with access to full quarterly results within the Avient Systems Secretaries and Direct-Reporting Assistants to any Covered Employee Financial and Business Consultants who have undertaken to comply with this policy Revised: December 20, 2024 ANNEX B Please access the PeopleLink home page and search for “pre-clearance” after clicking “My Help” General Counsel: Amy M.

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. FUTURE BEIGE PP Together we can unlock the powerful potential of a future envisioned by you... and shared by us all.

th, where it will provide details on its long-term growth drivers, future synergy capture from the Clariant Color acquisition as well as capital allocation priorities. Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. They use words such as "will," "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

CODICE DI CONDOTTA | 14 IL NOSTRO CODICE INTEGRITÀ NELLA RESPONSABILITÀ https://www.avient.com/company/policies-and-governance/it-systems-use-policy https://www.avient.com/company/policies-and-governance/it-systems-use-policy Informazioni proprietarie e riservate, idee e proprietà intellettuale Il nostro margine di vantaggio può diminuire facilmente se altri riescono ad accedere alle informazioni proprietarie, alle idee innovative o alla proprietà intellettuale di Avient e a utilizzarle per sviluppare prodotti concorrenti o per acquisire una determinata posizione nei confronti dei nostri clienti. In avient ci battiamo per creare un’organizzazione sostenibile a livello mondiale, conducendo le nostre attività in maniera tale da soddisfare le esigenze del presente senza compromettere la capacità delle future generazioni di fare altrettanto.

Being ATA-free, it also avoids the formation of primary aromatic amines (PAAs), making it safe for use in closed-loop recycling systems. Designing additives and recycling processes with circularity in mind is essential for the future of sustainable plastic packaging. By addressing the gaps that limit recyclability and providing compliance with regulatory standards, the industry can move toward a more sustainable future.

Being ATA-free, it also avoids the formation of primary aromatic amines (PAAs), making it safe for use in closed-loop recycling systems. Designing additives and recycling processes with circularity in mind is essential for the future of sustainable plastic packaging. By addressing the gaps that limit recyclability and providing compliance with regulatory standards, the industry can move toward a more sustainable future.

Being ATA-free, it also avoids the formation of primary aromatic amines (PAAs), making it safe for use in closed-loop recycling systems. Designing additives and recycling processes with circularity in mind is essential for the future of sustainable plastic packaging. By addressing the gaps that limit recyclability and providing compliance with regulatory standards, the industry can move toward a more sustainable future.

We are excited about our future as a pure play specialty formulator of sustainable solutions." Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

Our strategy is enabled by our focus on four Strategic Drivers: portfolio prioritization, amplify innovation, digital for operational excellence and growth, and leadership, talent and culture for the Avient of the future. IT Systems Use Policy