Our filings are available to the public at the SEC’s website at http://www.sec.gov. All other investments are Level 1 and are valued based on quoted market prices. Compensation expense is measured on the grant date using the quoted market price of our common shares and is recognized on a straight-line basis over the requisite service period.

An electronic certificate can be authenticated online. Americas Headquarters: BSI Group America Inc., 12950 Worldgate Drive, Suite 800, Herndon, VA 20170-6007 USA A Member of the BSI Group of Companies. https://pgplus.bsigroup.com/CertificateValidation/CertificateValidator.aspx? An electronic certificate can be authenticated online.

Wszyscy jesteśmy odpowiedzialni — względem siebie samych i naszych interesariuszy — za nasze działania i wyniki tych działań. Konkurencja Avient pozyskuje zlecenia w oparciu o oferowanie produktów i usług najlepszej jakości, a także w oparciu o osiągane wyniki. Zaangażowanie to przejawia się w tym, jak definiujemy zrównoważony rozwój: ludzie, produkty, planeta oraz wyniki.

REFORM DESIGN LAB B I O - B A S E D D E S I G N F U R N I T U R E • Matt black color in cellulose fiber filled PLA • 3D-printable material • Possible outdoor use • Fast development to adapt to online requests • Developed custom products that fulfill color, appearance, UV stabilization and material requirements • Provided fast support to answer evolving online demands • Offered small and flexible quantities and suggestions for further colors OnColor™ custom masterbatch and engineered material KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION MATERIAL KNOWLEDGE + FLEXIBILITY LEARN MORE © 2022, Avient Corporation, All Rights Reserved https://www.avient.com/products/polymer-colorants/high-temperature-color-concentrates/renol-concentrates-non-olefins

Includes estimated full year performance of APM acquisition ** 2019 baseline data revised to account for acquisition pro-forma performance and divestitures ¹Refer to CDP Climate Change Report for finalized Energy/Emissions information at https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report  ⁴Certificates can be found at https://www.avient.com/company/policies-and-governance/global-iso-certificate-library

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U-PVC WALL CEILING PRODUCER C O R R U G A T E D S H E E T • Achieved the beige color target with a uniform coloring process, ensuring a high- quality sheet appearance • Adjusted color strength in sheet production using online controls at the pump controller • Maintained a clean operation by eliminating powdery pigments in the workplace ColorMatrix Liquid Color Concentrates WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + SAFETY LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE • Reduces particulates from TiO2 bulk pigment use in the workplace • Color consistency and good surface finish • Maintain good mechanical properties and shore hardness of the extruded sheet • Compliance with heavy metal-free and RoHS regulations KEY REQUIREMENTS Copyright © 2025, Avient Corporation. All Rights Reserved. https://www.avient.com/products/polymer-colorants/liquid-color-concentrates-and-dosing https://www.avient.com/products/polymer-colorants/liquid-color-concentrates-and-dosing https://www.avient.com/products/polymer-colorants/liquid-color-concentrates-and-dosing Slide 1: U-Pvc wall ceiling Producer

An electronic certificate can be authenticated online. Americas Headquarters: BSI Group America Inc., 12950 Worldgate Drive, Suite 800, Herndon, VA 20170-6007 USA A Member of the BSI Group of Companies. https://pgplus.bsigroup.com/CertificateValidation/CertificateValidator.aspx? An electronic certificate can be authenticated online.

¹https://www.erdc.usace.army.mil/Missions/Military-Engineering/Deployable-Force-Protection-Demo/ 

To learn more about the Polystrand thermoplastic composites that made the Revolve tripod possible, visit https://www.avient.com/products/advanced-composites.