Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 462307-2021-AQ-RGC-RvA Initial certification date: 23 June 2021 Valid: 24 June 2024 – 23 June 2027 This is to certify that the management system of Avient China Company Limited No. 188, Quanzhou Road, Zhongxin Suchu High-Tech Industrial Development Park, Chuzhou, Anhui, China has been found to conform to the Quality Management System standard: GB/T 19001-2016 / ISO 9001:2015 This certificate is valid for the following scope: Design and Manufacture of Color Concentrates, Filling Concentrates and Additive Concentrates http://www.dnv.com/assurance

To verify this certificate please call 303-639-9001 *Transferred to Platinum Registration, Inc. on November 1, 2019.

Zwolseweg 1, 2994 LB, Barendrecht, Netherlands.

LEARN MORE https://www.avient.com/products/thermoplastic-elastomers/versaflex-thermoplastic-elastomers Slide 1: sports brand

They have outstanding UV and weather resistance, passing Arrhenius lifetime prediction tests of 20,000 hours as per the IEC 60216-1 standard. They pass EN 50618 and IEC 60332-1 standards on the assembled cable (if the cable jacketing and insulation are both produced with ECCOH XL 8148 solutions).

To access Avient’s news library online, please visit www.avient.com/news # # # Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. Rose Vice President, Marketing and Communications +1 440-930-3162 kyle.rose@avient.com https://www.avient.com/ https://www.avient.com/news mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com

Annecy - 28/04/2021 - 12:37:12 page 1/2 Extrait Kbis EXTRAIT D'IMMATRICULATION PRINCIPALE AU REGISTRE DU COMMERCE ET DES SOCIETES à jour au 28 avril 2021 IDENTIFICATION DE LA PERSONNE MORALE Immatriculation au RCS, numéro 483 912 812 R.C.S. Durée de la personne morale Jusqu'au 01/09/2104 Date de clôture de l'exercice social 31 décembre GESTION, DIRECTION, ADMINISTRATION, CONTROLE, ASSOCIES OU MEMBRES Président Nom, prénoms MERKLEIN Robert Date et lieu de naissance Le 03/05/1964 à Kelkheim (Allemagne) Domicile personnel Rheinfelden Schiffackerweg 2 4310 Suisse (Suisse) Directeur général Nom, prénoms VETTER Alexander Helmut Date et lieu de naissance Le 04/07/1968 à Augsburg (Allemagne) Domicile personnel Beinwilerstrasse 20A 4083 Bale (Suisse) Ayant pouvoir d'engager seul la société Directeur général Nom, prénoms TAMURA Mauricio Date et lieu de naissance Le 27/01/1971 à Sao Paulo (Brésil) Domicile personnel Birsfelden/BL Liestalerstrasse 1 4127 Suisse (Suisse) Ayant pouvoir d'engager seul la société Commissaire aux comptes titulaire Dénomination PRICEWATERHOUSECOOPERS AUDIT Forme juridique Société par actions simplifiée Adresse 63 Rue de Villiers 92200 Neuilly-sur-Seine Immatriculation au RCS, numéro 672 006 483 RCS Nanterre RENSEIGNEMENTS RELATIFS A L'ACTIVITE ET A L'ETABLISSEMENT PRINCIPAL Adresse de l'établissement 1995 Route De la Vallée du Giffre 74490 Saint-Jeoire Activité(s) exercée(s) Recherche - développement - achat - fabrication - transformation - vente de toutes matières premières - matériels à usage industriel et particulièrement Greffe du Tribunal de Commerce d'Annecy 19 Avenue du Parmelan BP 70259 74007 ANNECY Cedex N° de gestion 2008B80041 R.C.S.

ECert.QECertificate Page 1 of 2 Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

ECert.QECertificate Page 1 of 2 Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

ECert.pdf Page 1 of 2 Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.