Avient reported strong Q4 and full year 2024 results. Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. 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; our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; 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; 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.

Bourg-en-Bresse - 22/12/2021 - 10:38:15 page 1/2 Extrait Kbis EXTRAIT D'IMMATRICULATION PRINCIPALE AU REGISTRE DU COMMERCE ET DES SOCIETES à jour au 21 décembre 2021 Code de vérification : iWCDBNXrir https://www.infogreffe.fr/controle IDENTIFICATION DE LA PERSONNE MORALE Immatriculation au RCS, numéro 842 455 487 R.C.S. Bourg-en-Bresse Date d'immatriculation 18/09/2018 Dénomination ou raison sociale Avient Sàrl Forme juridique Société à responsabilité limitée d'un Etat membre de la CE ou partie à l'accord sur l'Espace économique européen Capital social 12 000,00 Euros Pays, lieu et numéro d'immatriculation B226205 Registre de commerce et des sociétés Adresse du siège 19 route de Bastogne 9638 Pommerloch (LUXEMBOURG) Activités principales Vente de produits en matière plastique ou à base de matières plastiques. achat, vente, importation et négoce en général de tous produits en matières plastiques ou à base de matières plastiques Durée de la personne morale Durée illimitée Date de clôture de l'exercice social 31 décembre GESTION, DIRECTION, ADMINISTRATION, CONTROLE, ASSOCIES OU MEMBRES Nom, prénoms POTOCZNY Zaneta Gabriela Date et lieu de naissance Le 17/10/1974 à JAWORZNO (POLOGNE) Nationalité Polonaise Domicile personnel 65 rue de Colmar berg L-7525 MERSCH (LUXEMBOURG) Nom, prénoms PALM Christophe Date et lieu de naissance Le 16/05/1963 à Eupen (BELGIQUE) Nationalité Belge Domicile personnel Gruss Strooss 35 Apartement 21 9991 Weiswarnpach (LUXEMBOURG) Nom, prénoms KRONIMUS Holger Hans Date et lieu de naissance Le 26/01/1968 à Vallendar (ALLEMAGNE) Nationalité Allemande Domicile personnel Schulstrasse 4 56206 Hilgert (ALLEMAGNE) Nom, prénoms MERKLEIN Nobert Date et lieu de naissance Le 03/05/1964 à KELHEIM (ALLEMAGNE) Nationalité Française Domicile personnel Schiffackerweg 2 4340 Rheinfelden (SUISSE) Responsable en France Nom, prénoms KIEN Eric René Date et lieu de naissance Le 09/07/1961 à Clermont-Ferrand (63) Nationalité Française Domicile personnel 705 Chemin de l'Arête 74290 Menthon-Saint-Bernard https://www.infogreffe.fr/controle https://www.infogreffe.fr/controle/verif? Bourg-en-Bresse - 22/12/2021 - 10:38:15 page 2/2 RENSEIGNEMENTS RELATIFS A L'ACTIVITE ET AU PREMIER ETABLISSEMENT IMMATRICULE EN FRANCE Adresse de l'établissement La Vavrette Route Nationale 75 Bp 26 01250 Tossiat Nom commercial AVIENT Activité(s) exercée(s) Vente de produits en matière plastique ou à base de matières plastiques. achat, vente, importation et négoce en général de tous produits en matières plastiques ou à base de matières plastiques Date de commencement d'activité 02/08/2018 Origine du fonds ou de l'activité Création Mode d'exploitation Exploitation directe Le Greffier FIN DE L'EXTRAIT

To help meet these demands, Avient offers a range of healthcare-compliant solutions for CGM devices. Discover more about Avient medical grade colorant and additives for wearable medical devices. Healthcare device OEM benefitted from single source supplier for pre-colored solutions, Trilliant™ HC thermoplastics, and regulatory support

Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. 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. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

Avient reported organic revenue growth for the fourth consecutive quarter and expanded adjusted EBITDA margins 20 bps to 17.5%.   Avient’s chief operating decision-maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. 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; our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; 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; 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.

In this case, the spiral flow test was conducted using two different injection speeds (3 in/sec and 5 in/sec). For spiral flow information about a specific grade or additional details about the spiral flow test procedure, please contact your Avient representative. The shrinkage values reported by Avient are determined using a 0.125" thick plaque.

In this case, the spiral flow test was conducted using two different injection speeds (3 in/sec and 5 in/sec). For spiral flow information about a specific grade or additional details about the spiral flow test procedure, please contact your Avient representative. The shrinkage values reported by Avient are determined using a 0.125" thick plaque.

By 2030, Avient will assess its top suppliers representing 90% of our total raw material costs for alignment with our Sustainability Objectives. Additionally, Avient formed an internal Sustainability Council in 2019 that is responsible for managing sustainability initiatives at all levels of our organization in support of our long-term business strategy. 30 PROXY STATEMENT 2024 | Annual Meeting of Shareholders CODE OF ETHICS, CODE OF CONDUCT AND CORPORATE GOVERNANCE GUIDELINES In accordance with applicable NYSE listing standards and SEC regulations, the Board has adopted a Code of Ethics, Code of Conduct and Corporate Governance Guidelines. The Avient Supplemental Retirement Benefit Plan is also subject to the rules of Code Section 409A, which restricts the timing of distributions.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Assess top 90% of supplier spend for alignment with Avient Sustainability objectives. We are Avient.

Certain PFAS materials are subject to product bans, leading to market exits by suppliers. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. 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.