CORPORATE GOVERNANCE PROXY STATEMENT 2025 | Annual Meeting of Shareholders 28 Board Leadership Structure Pursuant to our Corporate Governance Guidelines, the Board selects the Chairman of the Board and Chief Executive Officer and determines from time to time whether the positions are to be combined and filled by one person or separated and filled by two persons. The process to determine director nominees for election to the Board is based upon the recommendations of the Governance and Corporate Responsibility Committee, which is responsible for selecting directors to recommend to the Board for election by the shareholders and to recommend qualified individuals to fill vacancies between shareholder meetings.

Our experience has shown that having a better diversity representation in our candidate pool, increases the possibility for the position to be filled by a diverse candidate. NEW at Avient In 2022, we launched new products and expanded applications for the healthcare market that continue to evolve our portfolio to include more sustainable options, including: Mevopur™ Healthcare Bio-Based Polymer Solutions are color and performance-enhancing additive solutions formulated with bio-based polymers for healthcare applications Mevopur™ Nucleation Additive Concentrates help produce thinner walls in polyolefin applications while maintaining mechanical properties and reduce Moisture Vapor Transmission Rate (MVTR) in HDPE Mevopur™ Chemical Foaming Agents (CFA) enable reduced material use, while meeting regulator y requirements for medical devices and pharmaceutical packaging REMAFIN™ EP White Colorants for Pharmaceutical Packaging designed for a range of pharmaceuticals, safeguarding light transmission while meeting regulatory requirements Trilliant™ HC Glass Filled Polyketone offers a lower carbon footprint alternative to nylon with excellent chemical resistance, high temperature performance, and good wear resistance Versaflex™ HC Thermoplastic Elastomers are formulated to meet demanding healthcare device and application challenges without phthalate plasticizers, including respirator y applications Application Highlight: Biopharmaceutical Manufacturing Clamps The Challenge Develop an alternative to traditional nylon materials that meets dimensional stability, impact and wear resistance requirements, while enabling the customer to address consistency of supply and sustainability objectives. LEARN MORE Visit Our Sustainability Site for More Information LEARN MORE HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2022 46 https://www.avient.com/industries/healthcare https://www.avient.com/products/polymer-colorants/healthcare-colorants/mevopur-healthcare-bio-based-polymer-solutions https://www.avient.com/products/polymer-additives/healthcare-additives/mevopur-healthcare-functional-additives https://www.avient.com/products/polymer-additives/healthcare-additives/mevopur-healthcare-functional-additives https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/remafin-ep-white-colorants https://www.avient.com/sites/default/files/2023-01/Trilliant%20HC%20GF%20Polyketone%20_PK_%20Product%20Bulletin.pdf https://www.avient.com/products/thermoplastic-elastomers/versaflex-hc-thermoplastic-elastomers https://www.avient.com/sites/default/files/2023-03/Trilliant%20HC%20glass-filled%20PK%20-%20Biopharma%20Tubing%20Clamps.pdf https://www.avient.com/company/sustainability/sustainability-report/products/markets Transportation Market Needs: Improve Efficiency, Extend Range, Enable Circularity As the demand for low- and zero-emission, energy-efficient transportation continues to grow across all vehicle types, transportation requirements are evolving quickly.

Announced transformative portfolio improvements by divesting Performance Products and Solutions (PP&S) segment and signing definitive agreement to acquire Clariant Masterbatch business It was also the year we took two major steps forward in our specialty transformation with the divestiture of PP&S for Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation Taxes paid on gain on sale of PP&S divestiture

Watch to learn how Cesa™ Unify™ A4R helps bring incompatible polymers, such as PP and PE, together by forming them into a homogenous polymer mixture that increases mechanical properties based on polymer modification. Made from continuous glass-fiber reinforced thermoplastic face sheets and polyester foam cores, Hammerhead Marine Composite Panels are engineered to provide simplified installation, long-lasting components, and overall cost reduction for boat manufacturers.

Thermoplastic composites include these base resins, but are combined with a structural filler such as glass, wood, carbon or polymer fibers to enhance strength, rigidity and structure. In the transportation industry, plastic has proven to be durable, lightweight and corrosion resistant while offering fuel savings, design flexibility and high performance, often replacing traditional materials such as metal and glass. Polymer formulations and structures have advantages over metals, wood, rubber, glass and other traditional materials, which have resulted in the replacement of these materials across a wide spectrum of applications that range from automobile parts to construction materials.

Thermoplastic composites include these base resins, but are combined with a structural filler such as glass, carbon or polymer fibers to enhance strength, rigidity and structure. In the transportation industry, plastic has proven to be durable, lightweight and corrosion resistant while offering fuel savings, design flexibility and high performance, often replacing traditional materials such as metal and glass. Glasforms), a leading manufacturer of glass and carbon fiber reinforced polymers and advanced composite products, with 2012 annual sales of $51.1 million.

Thermoplastic composites include these base resins, but are combined with a structural filler such as glass, wood, carbon or polymer fibers to enhance strength, rigidity and structure. In the transportation industry, plastic has proven to be durable, lightweight and corrosion resistant while offering fuel savings, design flexibility and high performance, often replacing traditional materials such as metal and glass. We also have what we believe is the broadest composite platform of solutions, which include a full range of products from long glass and carbon fiber technology to thermoset and thermoplastic composites.

Thermoplastic composites include these base resins, but are combined with a structural filler such as glass, wood, carbon or polymer fibers to enhance strength, rigidity and structure. In the transportation industry, plastic has proven to be durable, lightweight and corrosion resistant while offering fuel savings, design flexibility and high performance, often replacing traditional materials such as metal and glass. We also have what we believe is the broadest composite platform of solutions, which include a full range of products from long glass and carbon fiber technology to thermoset and thermoplastic composites.

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint