Global ISO Certificate Library PolyOne Specialty Coatings and Inks Kennesaw, GA Plant Achieves ISO 9001-2008 Certification Avient Site in Glendale, Arizona Earns ISO 13485 Certification

In addition, Avient has externally certified EHS&S management systems, including ISO 9001 worldwide. ISO 14001, Responsible Care 14001, ISO 45001, ISO 50001, and OHSAS 18001, certification at 74% of facilities. In addition, Avient has ISO 9001 worldwide and ISO 14001 and ISO 50001 certification at many facilities.

They are formulated with  raw materials that are pre-tested to ISO, USP, EP and ICH Q3D protocols to mitigate the risk of product non-compliance of healthcare products.

Combined, these facilities have a total of 205 certifications to an ISO or Management System and standards. For our sensitive applications, in addition to ISO9001, we have implemented ISO 13485 and Good Manufacturing Processes (GMP). 100% of our facilities producing those sensitive applications and warehouses are GMP audited within a 3–year period. Our goal in 2021 is to develop processes and procedures and a position statement on critical customer information, and fully prioritize the product portfolio in all critical markets/materials. 75 ISO Certified Facilities ZERO Product Recalls Major Non-Conformances at ISO Sites Sustainability Report | 2020 59Sustainability Report | 2020 59 Management Approach: Supplier Collaboration Avient’s value extends not only to consumers through specialty products, but beyond the boundaries of our own processes and operations.

In addition, Avient has externally certified EHS&S management systems, including ISO 9001 worldwide. Additionally, 52% of our facilities are certified to ISO 14001, 56% to Responsible Care 14001 and ISO 45001, and 10% of our high energy sites are certified to ISO 50001. Additionally, 52% of our facilities are certified to ISO 14001, 56% to Responsible Care 14001 and ISO 45001, and 10% of our high energy sites are certified to ISO 50001.

Sustainability Report | 2021 58 Product Excellence Avient subscribes to several ISO Management Systems to ensure continual improvement. For our sensitive applications we have implemented Good Manufacturing Processes (GMP). 100% of our facilities and warehouses producing or distributing for the healthcare market are GMP or ISO audited within a 3–year period. In 2021, we partnered with Carbon Minds to standardize our approach to PCF, which is certified for ISO 14040/140440 compliance by TÜV Rheinland*.

Copyright © . 2024 23 Diverse technology portfolio Commercial excellence, financial rigor & prudence Culture of safety and sustainability FOUNDATIONAL STRENGTHS Unwavering customer focus Global reach with a local touch Innovation Digital for Operational Excellence and Growth Leadership, talent STRATEGIC DRIVERS OUR PURPOSE Innovator of materials solutions to help our customers succeed, while enabling a sustainable world STRATEGIC APPROACH Intersecting high growth markets and secular trends with our technologies to create product platforms of scale Catalyze the core Build new platforms of scale GROWING AT GDP+ GROWING AT 10% PLUS CAGR Copyright © . 2024 24 Redesigning organizations & compensation to drive strategy Compensation • Designed a new compensation plan directly to our strategy execution Colors, and Inks Specialty R&D Research and Development New business development & marketing excellence • New SVP hired • Reorganized under a single global leadership eliminated structure and complexity “play to win” focused organizations for growth vectors up front • New CTO hired Copyright © . 2024 25 Strong and committed team leading the change Leslie Sequeira Chief Information Officer SVP and Chief Financial Officer Joel Rathbun SVP Mergers & Acquisitions SVP and President Color, Additives and Inks SVP and President Specialty Engineered Amy Sanders SVP, General Counsel and Secretary Kyle Rose VP, Corporate Communications John Midea SVP, Global Ops and Process Improvement Kristen Gajewski SVP and Chief Human Resources Officer ALSO HERE TODAY Phil Clark SVP and Chief Technology Officer ALSO HERE TODAY Mike Irwin SVP, New Business Development and Marketing Excellence Color, Additives and Inks SEGMENT STRATEGIC REVIEW Copyright © . 2024 28 Solutions provider of customized color and functionality to enhance and improve polymers Color, Additives and Inks – an overview 34% 37%21% 8% US, Canada Europe, Middle East, Africa Latin America $2.0B • Differentiate and enhanced aesthetic appeal of our customers’ products • Enable sustainability through our solutions • Safeguard and preserve packaged contents • Extend product shelf life KEY E N D MARKETS PACKAGING CONSUMER HEALTHCARE BUILDING & CONSTRUCTION INDUSTRIAL TRANSPORTATION Copyright © . 2024 29 Our value we know color color designs completed annually 400,000 color formulations manufacturing footprint in industry 550 commercial resources globally serving locally we are global we innovate 18,000 sustainable solutions broadest portfolio in industry 14,500 additives solutions and growing Copyright © . 2024 30 Portfolio of CAI solutions Solid Colorants Liquid Recycling solutions Barrier enhancements Surface modifiers Plastisol Water-based Bio-based Silicone dispersion Vinyl formulations Specialty coatings Advanced dispersionsScreen printing inks Copyright © . 2024 31 CAI sales growth faster response to customer needs tailored to local needs...globally enhance service with digital tools Copyright © . 2024 32 Personalized, self-administered 32 CAI PORTFOLIO Copyright © . 2024 33 • Regulatory compliance • Reliable material quality and uninterrupted supply • Supply chain risk mitigation • Global reach $6B ADDRESSABLE MARKET AVIENT VALUE PROPOSITION • ISO 13485 accredited sites • Globally approved raw material portfolio • Strict change management • Global supply Auto injectors Syringes Inhalers OTHER APPLICATONS • In-vitro diagnostics • Remote monitoring • Pharma packaging • Catheters • Medical equipment Copyright © . 2024 34 • Reducing material and energy usage • Achieving sustainability goals and objectives • Improved product performance, structural integrity $5B ADDRESSABLE MARKET AVIENT VALUE PROPOSITION • Best-in-class additives for a wide range of polymer processing temperatures • Design services to simulate foaming and mold designs TransportationWood plastic composite decking Bottles and food packaging Building and Copyright © . 2024 35 • Regulatory restrictions with the removal of PFAS in multiple end markets • Major retailers requiring PFAS content declaration from suppliers • Enhanced plastic properties, aesthetics and processability • Specialized functionalities making plastics a safe option in demanding applications $8B ADDRESSABLE MARKET OTHER APPLICATONS • Electrical connectors • Labware • Food contact appliances Flexible film Artificial turf Food storage, oil containers 36Copyright © .

Additionally, 58% of our facilities are certified to ISO 14001/Responsible Care 14001, and 30% of our high energy sites are certified to ISO 50001. This methodology was developed in accordance with ISO 14067:2018 for product carbon footprint and is aligned with ISO 14040/140440 for life cycle analysis. This methodology was developed in accordance with ISO 14067:2018 for product carbon footprint and is aligned with ISO 14040/14044 for life cycle analysis.

China and Southeast Asia T R A C K R E C O R D O F G R O W T H & E X P A N S I O N Regional headquarters and innovation center established in 2015 Built largest manufacturing site within Avient in 18 months and commissioned in 2021 Expand and increase Healthcare accredited (ISO 13485) sites 2X 18 plants > 2.5X 500 commercial resources > 3X $680M revenue Chuzhou, China Singapore – ISO13485 SiteRegional Innovation Center, Shanghai 91Avient Corporation Metrics represent growth since 2010 India Landscape Avient Corporation 92 Most populous country in the world by 2030 One of the youngest population in the world feeding the talent pool Growing middle class driving the need for better quality goods and services “Made In India” and “Digital India” initiative driving foreign and domestic investments India M O M E N T U M T O E X P A N D 4X 4 plants > 10X 100 commercial resources > 20X $70M revenueVashere Pune Kalol Rania 93Avient Corporation Establishing an Innovation Center to support local technology needs and global R&D efforts Investment in resources, capacity, and capability to support growth and geographic expansion to North and South Vashere Pune Metrics represent growth since 2010 94Avient Corporation Latin America Landscape Avient Corporation 95 Region’s economy expected to double by 2030 Top 6 countries contribute 75% of the region’s GDP Mexico remains a manufacturing hub for North America Growing middle class population L E V E R A G E A N D E X P A N D 2X 9 plants > 5X 200 commercial resources > 20X $400M revenue Investment in capacity, and capability to support domestic growth Grow commercial resources to support geographic expansion Santa Clara, Mexico Toluca, Mexico Cota, Colombia Guatemala, Guatemala Maipu, Chile Lomas, Argentina Itupeva, Brazil Lima, Peru Suzano, Brazil 96Avient Corporation Metrics represent growth since 2010 $191 $680 $3 $70 $16 $400 (Sales in $ millions) Asia (ex.

For our sensitive applications, in addition to ISO9001, we have implemented ISO 13485 and Good Manufacturing Processes (GMP). 100% of our facilities producing those sensitive applications and warehouses are GMP audited within a three-year period. In 2021, we anticipate formalizing and standardizing our approach to Life Cycle Analysis (LCA) and fully prioritizing the product portfolio in all critical markets/materials. 78 ISO9001 Certified FACILITIES ZERO Major Non-Conformances at ISO Sites Sustainability Report | 2019 60Sustainability Report | 2019 60 Supplier Evaluation We seek to collaborate with excellent organizations that espouse our values and principles to bring innovation, sustainable materials and efficient processes to Avient and our customers.