Check one box below and provide information as required: Complete the following information: Form 540 Prescribed by: POLYONE CORPORATION 1181191 1701.70(B)(6) DOC ID ----> 202018203934 Page 2 of 2Form 540 Last Revised: 06/2019 A copy of the resolution of amendment is attached to this document. Brown: Please be advised that the office of the Secretary of State has reviewed your pre- clearance request for the Certificate of Amendment for PolyOne Corporation. NOW, THEREFORE, BE IT RESOLVED, that, effective as of the time and date that the applicable certificate is accepted for filing by the Ohio Secretary of State (the “Effective Time”), the name of the Company shall be changed from “PolyOne Corporation” to “Avient Corporation.”

Certificate Magna Colours Limited Certificate Of Conformance This is to certify that the Quality Management System of: Magna Colours Limited Unit 3 Dodworth Business Park, Dodworth Barnsley South Yorkshire S75 3SP United Kingdom has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: The Provision of a Service Of Sourcing, Procuring, Design, Manufacturing and Distribution of Specialty Colouration Products and Chemical Auxiliaries for use the Textile, Dying, Printing and Finishing Industries. Certificate No: QMS10207 Certification Date: 13 FEB 1991 Effective Date: 02 MAY 2025 Expiration Date 04 MAY 2028 Revision Date: 02 MAY 2025 Dominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc.

Explore Avient's range of high performance colorants and additives solutions  Fiber-Line™ Engineered Synthetic Fiber Products Explore our broad portfolio of engineered synthetic fiber products

Report Preview - National Pollutant Release Inventory (NPRI) and Partners Canada.gc.ca Services Departments Français SWIM 2016 Polyone Canada Inc. Orangeville Compound (Update 1) Report Preview National Pollutant Release Inventory (NPRI) and Partners Home Submission Management Help My Profile:Brian Greer Logout Ec.gc.ca Report Preview Report Details Company and Facility Details Permits Contacts Details Report Year 2016 Report Type: NPRI Report Status: Update 1 ­ Submitted Modified Date/Time: 13/03/2018 2:04 PM Report Update Comments: As per email from NPRI QC team Feb 13, 2018 Company Name: Polyone Canada Inc. Company Name Polyone Canada Inc.

SHENZHEN, China – April 7, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, will feature its portfolio of sustainable materials and colorant technologies next week at Chinaplas 2021. From color modeling to the latest advances in materials science, Avient is unlocking the potential of sustainability in Asia and globally,” said Say-Eng Lee, vice president and general manager, Color & Additives Asia. About Avient Avient Corporation (NYSE: AVNT), with 2020 pro forma revenues of $3.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

© 2019, All Right Reserved PolyOne Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 AUTOMOTIVE PARTS MANUFACTURER P L A T E H E A T E X C H A N G E R • High thermal conductivity • Very good flow rate for thin walls • Chemical resistance to glycol • Good aging for both chemical & temperature resistance • Improved thermal performance by eliminating the effects of corrosion • Reduced overall part weight • Provided greater design freedom meaning a more complex part could be designed and molded • Enabled several heat exchangers to be consolidated into one, saving space in the vehicle and increasing efficiency Therma-Tech™ Thermally Conductive Formulation KEY REQUIREMENTS WHY AVIENT? THERMAL CONDUCTIVITY AVIENT SOLUTION LEARN MORE Copyright © 2020, Avient Corporation. All Rights Reserved. https://www.polyone.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma Automotive parts manufacturer

Sustainable Materials Portfolio At Avient, our proven ability to innovate materials that enable our customers’ sustainability goals remains a key differentiator for our company. Avient’s value extends not only to consumers through specialty products, but beyond the boundaries of our own processes and operations.

Certificate Avient de México, S.A. de C.V. Certificate Of Conformance This is to certify that the Quality Management System of: Avient de México, S.A. de C.V. Avient Corporation Contract Review, Customer Services, Human Resources, Information Technologies, Supplier Management 33587 Walker Road Avon Lake OH 44012 United States TXRMTP Avient Corporation Product Design, Testing 80 North West Street Norwalk OH 44857 United States 626R43 Copyright as of the Effective Date, ABS Quality Evaluations, Inc.

E-CIGARETTE MANUFACTURER H O U S I N G • Special effect finish • Halogen-free flame-retardant material • High production efficiency • Provided PC formulation with customized speckle effect to meet specific color and surface expectations • Passed UL 94 V-0 flame retardant test at 1.0 mm • Offered better impact strength than competitor‘s PC material, and passed the drop testing • Eased processing with high-flow material Edgetek Engineered Polymer Formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION SPECKLE EFFECT+ FLAME RETARDANT LEARN MORE Copyright © 2024, Avient Corporation. All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/edgetek-engineered-polymer-formulations Slide 1: E-Cigarette manufacturer

Targeting an alternative to cast aluminum, Avient and Bettcher teamed up to re-engineer the yoke, which supports a 25-pound motor that powers a variety of meat trimming tools. We are grateful for Avient’s proactive approach,” said Joel Hall, senior engineering manager at Bettcher. Because of the collaborative engineering with Avient, we were able to confidently transition to the long-fiber technology and ultimately deliver a high-end, innovative product to our customers.”