Internal Testing Available • Physical • Rheological, thermal, and moisture analysis • Microscopy • Liquid, gas, and size exclusion chromatography • Atomic, infrared, and nuclear magnetic resonance spectroscopy • Flammability • X-ray diffractometry • Weathering (QUV & Xenon Arc) • Failure analysis APPLICATION DEVELOPMENT Avient has design, application development and degreed plastics engineers available to give our customers reliable and experienced guidance to help navigate the development process.

Plastic waste is an issue impacting our communities and our world, and we are proud to be a founding member of the Alliance to End Plastic Waste. The mission of the Alliance is clear: develop, accelerate and deploy solutions, catalyze public and private investment, and engage communities to help end plastic waste in the environment. Additionally, Avient is a member of the American Chemistry Council and Plastic Industry Association’s Operation Clean Sweep, a set of guidelines for process, training and audit of our operations to prevent plastic pellet loss into the environment.

Alliance To End Plastic Waste UK Plastics Pact Plastics Recyclers Europe (PRE)

Color matching, UV performance enhancements and lubrication additives are just a few of the many performance additive solutions that we offer. Read more about how automotive aftermarket parts are making the switch from metal to plastic by using long fiber thermoplastics

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts and any recessionary conditions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2023 under Item 1A, “Risk Factors.”

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA;and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

En tant qu’entreprise membre de l’American Chemistry Council Responsible Care® et membre fondateur de l’Alliance to End Plastic Waste (Alliance pour l’élimination des déchets plastiques), nous sommes également engagés par le biais de notre engagement historique No Surprises PledgeSM (Engagement concernant l’absence de mauvaises surprises) et notre Promesse en faveur de la durabilité. Déclaration de cadeau Pour garantir la transparence concernant les cadeaux, les cadeaux offerts aux tiers doivent être codifiés dans Concur comme « cadeaux offerts aux tiers ». En tant qu’entreprise membre de l’American Chemistry Council Responsible Care® et membre fondateur de l’Alliance to End Plastic Waste (Alliance pour l’élimination des déchets plastiques), nous sommes également engagés par le biais de notre engagement historique No Surprises PledgeSM (Engagement concernant l’absence de surprises) et notre Promesse en faveur de la durabilité, et nous respectons ces principes à travers les valeurs personnelles d’intégrité, d’honnêteté et de respect.

Additive Dispersions are widely used in the rubber and plastics industries to deliver usability, improved process efficiency and enhanced performance. Colorant Chromatics™ UV Laser Marking Technology UV and Light Blocking Additives

Formulations engineered to combine the heat transfer and cooling capabilities of metals with the advantages of designing with a plastic Colorant Chromatics™ UV Laser Marking Technology UV and Light Blocking Additives

Lubricants improve the flow characteristics of plastics during processing, reducing the amount of heat and energy needed.  Colorant Chromatics™ UV Laser Marking Technology UV and Light Blocking Additives