In millions, except per share data) In millions, except per share data) Condensed Consolidated Balance Sheets

This portfolio includes the recent addition of Mevopur bio-based polymer solutions, which are color and additive masterbatches based on bio-polyethylene resins that have up to 95 percent bio-based content. Mevopur™ Functional Additives comprise a portfolio of consistent, compliant additives to help protect or enhance the performance of polymers used in medical devices, diagnostics, and pharmaceutical packaging. The line of additives includes the new Mevopur chemical foaming agents that help manufacturers of pharmaceutical packaging and medical devices add another level of sustainability to their products.

Data and information supporting the Scope 3 GHG emissions assertion were in many cases estimated rather than historical in nature. Page 3 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com Statement of independence, impartiality and competence Apex is an independent professional services company that specializes in Health, Safety, Social and Environmental management services including assurance with over 30 years history in providing these services. The verification team has extensive experience in conducting assurance over environmental, social, ethical and health and safety information, systems and processes, has over 20 years combined experience in this field and an excellent understanding of Apex’s standard methodology for the verification of greenhouse gas emissions data.

Data and information supporting the Scope 3 GHG emissions assertion were in many cases estimated rather than historical in nature. Page 3 WATER RESOURCES • ENVIRONMENTAL SERVICES • INDUSTRIAL HYGIENE  •  SAFETY  •  SUSTAINABILITY  Apex Companies, LLC • (800) 733‐2739 • www.apexcos.com  Statement of independence, impartiality and competence Apex is an independent professional services company that specializes in Health, Safety, Social and Environmental management services including assurance with over 30 years history in providing these services. The verification team has extensive experience in conducting assurance over environmental, social, ethical and health and safety information, systems and processes, has over 20 years combined experience in this field and an excellent understanding of Apex’s standard methodology for the verification of greenhouse gas emissions data.

Mevopur™ Healthcare Functional Additives Mevopur™ Healthcare Functional Additives Mevopur™ Bio-based Polymer Solutions

W A L L PA RT I T I O N M A N U FAC T U R E R F O O D P R O C E S S I N G E N V I R O N M E N T S • Decrease growth of microbes on plastic surfaces that come in contact with food products • Compatibility with sheet extrusion processing • Maintain all other functional attributes inherent to product, such as ROHS, flame retardant standards, and specific brand color • Seamlessly incorporated multifunctional additives for optimal performance in reducing microbe growth • Developed custom formulation for complex processing configurations in sheet extrusion technology • Provided expertise in antimicrobial performance, chemical resistance, flame retardance, and regulatory product stewardship Cesa™ WithStand™ Antimicrobial Additives and Smartbatch™ Combination Colorants and Additives KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION SAFETY + PROCESS OPTIMIZATION LEARN MORE Copyright © 2022, Avient Corporation.

Mevopur Healthcare Functional Additives Medical Devices Application Bulletin_CN12.15-2

Mevopur™ Healthcare Functional Additives: help protect or enhance the performance of polymers used in medical devices, diagnostics, or pharmaceutical packaging. Based in polysulfone resins, they provide ultra-high-heat resistance and performance without compromising safety while also responding to the needs of extended shelf life. This cutting-edge tool offers an important data point for the carbon footprint of Avient’s materials so customers can better understand the environmental impact of products, meet sustainability goals, and navigate the complex landscape of reducing carbon emissions.

Mevopur™ Healthcare Functional Additives Mevopur™ Healthcare Colorants and Formulations Mevopur™ Colorants and Additives - Healthcare Polymer Solutions

ECert - 2024-03-22T104613.866.pdf Page 1 of 53 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 confirm that the Environmental, Health, Safety and Security Management System of: Avient Corporation Avient Corporation HQ 33587 Walker Road Avon Lake, OH 44012 U.S.A. Certificate Of Conformance This is to confirm that the Environmental, Health, Safety and Security Management System of: has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: RC14001®:2015 The Environmental, Health, Safety and Security Management System is applicable to: The validity of this certificate is contingent upon maintenance of multi-site certificate 65536 issued to Avient Corporation 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.