Patterson President and Chief Executive Officer PolyOne Corporation Page 5 PolyOne Leadership Name Title Name Title Stephen D. Patterson President and Chief Executive Officer Kurt Schuering Vice President, Global Key Account Management Bradley C Richardson Executive Vice President and Chief Financial Officer Cathy K. Kahler Senior Vice President Chief Commercial Officer Dr.

Our purpose at Avient Corporation is to be an innovator of materials solutions to help our customers succeed, while enabling a sustainable world. Avient Company Officers

1 AVIENT CORPORATION AUDIT COMMITTEE CHARTER Authority The Board of Directors, by resolution dated August 31, 2000, established the Audit Committee. The members of the Audit Committee shall be appointed by the Board on the recommendation of the Governance and Corporate Responsibility Committee. Review with the chief legal officer the investigation and disposition of any reports made under the Commission’s Rule 205 of a material violation of securities law or breach of fiduciary duty or similar violation by the Company or by any of its officers, directors, employees or agents. 7.

Fraudulent emails will also disguise the sender's email address so it appears to be legitimate. Company Officers Avient Corporation Privacy Statement

Originat Cycte Start Date: Expiry Date of Previous Cycle: Certification/Recertification Audit Date: Certification/Recertification Cycte Start Date: Subject to the continued satisfactory operation of the organization's Management System, this certificate expires on: Certificate No: N1027324 I Version: 1 02 December 2003 14 Septembe r 2O24 16 February 2024 06 March 2024 18 March 2027 Revision date: 06 March 2024 Ow^ An\qgKerbusch - Director Certification Benelux Managing Office: Bureau Veritas lnspection and Certification The Netherlands B.V. - Ptotterweg 38, 3821 BB nmersfoort lssuing Office: Bureau Veritas lnspection and Certification The Nethertands B.V. - Plotterweg 38, 3821 BB Amersfoort Further clarifications regarding the scope of this certificate and the appticabitity of the management system requirements may be obtained by consutting the organization. Avient Protective Materiats (Heerten) Eisterweg 3, 6422 pN Heerten, The NetherIands Design, devek:pment, marketing & sales and related apptication support of UHA4WPE, Uttra - High -Motecutar-Weigh t PolyEthytene fibers and UniDirectionat sheets Site Address Scope @ EIT:TilU rE:I:.TETCI c o t rrl +,t (u U tr-rf. r- +-t r_ o CJ V) CU '(- (.) f co (.) t_ f m Appendix awarded to Avient Protective Materials Urmonderbaan 22 6167 RD Geleen The Netherlands This certificate arso concerns berow mentioned organization(s) and site(s). Standard ISO 900 1:2015 Scope of suppty Version: 1 Revision date: 06 March 2024 Kerbusch - Director Certification Benelux Managing office: Bureau veritas lnspecLion and certification The Nethertan

PolyOne’s new black colorants address this issue by eliminating carbon black and enabling black plastics to be sensed, sorted, and recycled efficiently. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

ColorMatrix Amosorb 4020R has been formulated to address this performance issue, and is the latest in a portfolio of solutions Avient has developed to enable high-quality recycled packaging. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation Company Officers

Additionally, Versaflex FFC helps address the challenges associated with the global silicone rubber supply chain and can help design engineers get new products to market more quickly. Media Contact Jennifer Huang Senior Manager, Marketing Communications Asia Avient Corporation +86 21 60284888 jennifer.huang@avient.com   Company Officers

Our materials address strong consumer demands for enhanced safety, purity, and regulatory compliance. Sandy Wagner Marketing Communications Manager PolyOne Corporation +1 815-385-8500 sandy.wagner@avient.com Company Officers

Solutions on display are designed to address compliance with regulations and the need for innovation among wire and cable customers. Manager, Marketing Communications Asia PolyOne Corporation +86 21 60284888 jennifer.huang@avient.com  Company Officers