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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: 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.

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.

Human Health & Safety Mevopur™ Healthcare Colorants and Formulations Mevopur™ Healthcare Functional Additives

Plastics are a crucial tool in saving lives and improving health and safety in our communities. Mevopur™ Healthcare Bio-Based Polymer Solutions are color and performance-enhancing additive solutions formulated with bio-based polymers for healthcare applications. Mevopur™ Chemical Foaming Agents (CFA) enable reduced material use, while meeting regulatory requirements for medical devices and pharmaceutical packaging.

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

NOTE: On July 1, 2020, PolyOne and Clariant Masterbatch joined together as Avient, a new kind of materials company focused on conquering customer challenges and unlocking the potential for innovation and sustainability around the globe. ADDITIONAL INFORMATION: On pace for exponential growth, 5G technology is becoming the standard for a fully mobile and networked society through larger data capacity, faster speeds and lower latency.

Executive Vice President and CFO, will provide insights and commentary on the company's expected second quarter performance as well as the status of the previously announced Clariant Masterbatch acquisition.