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ECert.pdf

https://www.avient.com/sites/default/files/resources/US_Norwalk_IATF16949_2020Exp.pdf

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. IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 39913 Effective Date: 30 November 2017 Expiration Date: 29 November 2020 Issue Date: 30 November 2017 IATF No: 0280241 Alex Weisselberg, President DESIGN AND MANUFACTURE OF COLOR CONCENTRATES (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations PolyOne Corporation IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

ECert.QECertificate

https://www.avient.com/sites/default/files/resources/Dyersburg%2520IATF%252016949-2016%2520exp%25208-13-2021.pdf

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. ABS Quality Evaluations This is to certify that the Quality Management System of: PolyOne Corporation Plastics Compounds and Colorants Group 107 Jackson Street Dyersburg, TN 38024 IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 39032 Effective Date: 14 August 2018 Expiration Date: 13 August 2021 Issue Date: 17 August 2018 IATF No: 0322936 Alex Weisselberg, President MANUFACTURE, DESIGN AND SUPPLY OF PROPRIETARY THERMOPLASTIC COMPOUNDS, INCLUDING THE SUPPLY OF TOLL COMPOUNDING SERVICES (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations PolyOne Corporation IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

D_21_851633

https://www.avient.com/sites/default/files/2021-11/trade-register-lu1a-16112021.pdf

2] Avient Luxembourg S.à r.l. Palm Christoph Page 4 / 5 Délégué à la gestion journalière Pouvoir de signature La Société est valablement engagée et représentée à l'égard de tiers pour tout ce qui relève de la gestion journalière par la signature individuelle du délégué à la gestion journalière dans les limites des pouvoirs qui lui ont été délégués par décision du conseil de gérance. 05/07/2018 Personne(s) chargée(s) du contrôle des comptes ERNST & YOUNG [2] ERNST & YOUNG N° d'immatriculation au RCS B47771 ERNST & YOUNG Société anonyme 35E Avenue John F. 2] L'inscription a été faite suite à la loi du 27/05/2016 portant réforme du régime de publication légale relatif aux sociétés et associations [3] En application de l'article 21 paragraphe 2 de la loi modifiée du 19 décembre 2002 concernant le registre de commerce et des sociétés ainsi que la comptabilité et les comptes annuels des entreprises et l'article 21 du règlement grand-ducal modifié du 23 janvier 2003 portant exécution de la loi du 19 décembre 2002, le présent formulaire reprend au moins la situation à jour des données communiquées au registre de commerce et des sociétés jusqu'à un jour avant la date d'émission dudit formulaire.

Environmental Stress Cracking Resistance _ESCR_ Design Guide (1).pdf

https://www.avient.com/sites/default/files/2022-08/Environmental Stress Cracking Resistance _ESCR_ Design Guide %281%29.pdf

Figure 2 shows the proper way to transition different wall thicknesses. Usually, it is 2° for parallel walls. Instead, use gussets to structurally support the boss.2 Figure 10 illustrates these stated boss design guidelines.

Avient Investor Event & Presentation Information

https://www.avient.com/investors/events-presentations?page=4