Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 3 AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial GuidanceCompany Overview Revenue By: 9,700 Employees 104 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable material solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.13B Revenue $2.30 Adjusted EPS $500M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $180M Free Cash Flow Over $1B in share buybacks since 2011 Raised dividend for 13 consecutive years, a 15% CAGR since 2011 U.S. & Canada EMEA Asia Latin America 64% 36% Specialty Engineered Materials Color Additives and Inks 40% 37% 18% 5% 6% 8% 24% 20% 10% 15% 9% 4% 4% Defense Healthcare Packaging Consumer Building & Construction Industrial Transportation Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. We create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Our customers value the breadth of our solutions as we can tap into a broad array of raw materials to solve their specific needs.

OUR VISION At Avient, we create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. We create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Our customers value the breadth of our solutions as we can tap into a broad array of raw materials to solve their specific needs.

In 2023, we launched nearly 30 sustainability enabling solutions. PRESERVEREDUCERENEW Solutions to advance a circular economy and minimize plastic waste Solutions to reduce weight and energy consumption Solutions to preserve and protect natural resources and human life LEARN MORE Avient Sustainability Sustainable Solutions Portfolio Sustainability attributes of specific products continue to be tracked by Avient’s 8 ways we help customers meet their sustainability goals. A worldwide network of experts ensures proper remedial solutions are implemented.

In 2023, we launched nearly 30 sustainability enabling solutions. PRESERVEREDUCERENEW Solutions to advance a circular economy and minimize plastic waste Solutions to reduce weight and energy consumption Solutions to preserve and protect natural resources and human life LEARN MORE Avient Sustainability Sustainable Solutions Portfolio Sustainability attributes of specific products continue to be tracked by Avient’s 8 ways we help customers meet their sustainability goals. A worldwide network of experts ensures proper remedial solutions are implemented.

In 2023, we launched nearly 30 sustainability enabling solutions. PRESERVEREDUCERENEW Solutions to advance a circular economy and minimize plastic waste Solutions to reduce weight and energy consumption Solutions to preserve and protect natural resources and human life LEARN MORE Avient Sustainability Sustainable Solutions Portfolio Sustainability attributes of specific products continue to be tracked by Avient’s 8 ways we help customers meet their sustainability goals. A worldwide network of experts ensures proper remedial solutions are implemented.

INDUSTRIAL EQUIPMENT MANUFACTURER H O U S I N G F O R C R A N E C O N T R O L • High impact performance, charpy notched > 60kJ/m2 • Part assembly: tight dimensional tolerances ±0.05mm • Critical weld lines are invisible on the final part • Red RAL 3020 as branding color • Color stability during injection • Offered a nylon (PA66) formulation with high impact resistance and dimensional stability • Supported injection trials with field technical services • Developed a ready-to-use solution in RAL 3020 with excellent color stability, helping to reduce scrap rate from >50% to 4% • Enabled timely production through fast new developments and samplings • Offered additional color options Bergamid Polyamide Formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax/bergamid-polyamide-formulations Slide 1: industrial equipment manufacturer

TRACTOR TRAILER OEM C A R G O T R A I L E R S I D E W A L L S • Suitable CFA design for PE sheet extrusion in layered, metal-laminated inner sidewall panels • Improved fuel economy and reduced trailer tare weight • Uncompromised outdoor durability and part strength • Reduced polymer usage while maintaining physical and dimensional requirements • Delivered significant 20% part weight reduction with CFA solution • Provided formulation to enhance throughput, leading to a 43% overall cost reduction • Created value beyond initial technical challenge with a credible problem solving approach • Enhanced performance with excellent sidewalls, uniform foamed plastic core, superior flatness, and rigidity Hydrocerol™ Chemical Foaming Additives (CFAs) and Cesa™ Nucleant Additives KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION LIGHTWEIGHTING + COST REDUCTION LEARN MORE Copyright © 2022, Avient Corporation.

ETO / Gamma radiation) • Facilitated 510(k) submission with formulations registered under Device Master File MAF 1833 • Pre-tested raw materials to biocompatibility ISO10993, US and Eu Pharmacopeia, ICH-Q3D extractable metals • Enhanced stability with gamma stabilizing package • Minimized risk of change with change control beyond CAS number level • Ensured uninterrupted supply from multiple ISO 13485-2016 certified sites • MEVOPURTM ISO 6009 Standard / Customized Solutions KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION COMPLIANCE + QUALITY LEARN MORECopyright © 2021, Avient Corporation.

Beggs is Senior Vice President and Chief Financial Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Prior to Hunt, she worked for Celanese Corporation, where she served in a variety of finance and business positions, including Vice President and Corporate Treasurer, and earlier as Chief Financial Officer of the materials solutions business.

REINFORCED THERMOPLASTIC PIPE F O R O I L + G A S • Reinforcement for HDPE pipe to meet the performance of traditional steel pipe for oil and gas applications • Temperature performance up to 65˚C with operating pressure up to 1500 psi • Spoolable, lightweight material to simplify transport and installation • Provided material compatibility with HDPE and added reinforcement to meet burst strength requirements • Customized tape thickness to meet specific processing needs • Ensured supply chain reliability with fast delivery and quality control in North America • Flexible, reinforced plastic solution enabled spoolable pipe and reduced weight Polystrand™ Continuous Glass Fiber Reinforced Polyethylene Tape KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION STRONG – DURABLE – LIGHTWEIGHT LEARN MORECopyright © 2021, Avient Corporation.