ORLANDO – May 6, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, invites attendees at NPE 2024 to learn how the company is helping customers solve some of the most pressing challenges facing our industry today, including solutions that enable circularity in addition to solutions that reduce carbon footprint to support sustainability goals, through a dynamic showcase of product launches, sustainability initiatives, and technical seminars. ColorMatrix™ AAnchor™ Acetaldehyde Control Technology: a finalist for Product Technology Innovation of the Year for sustainable packaging at the Plastics Recycling Show Europe (PRSE) 2024, this specially formulated acetaldehyde scavenger for PET packaging developed to improve recyclability, enhance bottle quality, and meet compliance with regulatory limits – winner will be announced during PRSE 2024 in Amsterdam, June 19-20, 2024

What services and innovative polymer solutions could you leverage to solve challenges in your next generation designs? Requirements: Textured, overmolded soft grip for comfortable and controlled hold 8. Our services go beyond what our customers need.

An enforced gap analysis of technical documentation may show that current plastic resin grades or masterbatches do not have adequate change control, and there are insufficient change agreements with suppliers Other challenges include answering a need for enhanced technical support and ensuring adequate change control is in place. Backed by robust bio-compatibility pre-testing, healthcare quality systems, and change control standards, these ‘medical grade’ concentrates and pre-color formulations can help minimize risk and avoid high costs of non-compliance.

Each of such adjustments has not yet occurred, are out of Avient’s control and/or cannot be reasonably predicted. Sharpening focus on cost control & driving productivity in SG&A and in our plants 4. EPS – Q2 2025 $0.79 2025 financial guidance unchanged

We are committed to doing our part in what must be a multi-faceted, global approach throughout supply chains and all stakeholders to successfully address the issue. Some technologies needed are not yet available at scale, which limits our ability to take certain actions in the short term.

A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.avient.com. Each of such adjustments has not yet occurred, are out of Avient’s control and/or cannot be reasonably predicted. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation from, or solely as alternatives to, financial measures prepared in accordance with GAAP.

Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date. WHAT WE DO: MATERIAL SCIENCE 4 CUSTOM FORMULATION We sell solutions not commodities.

This is the case for Avient as well, but what further differentiates us, is that in 2020 our EPS also grew 11% vs. 2019. Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP.

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