PEDERSON Senior Vice President, President of Specialty Engineered Materials Chris Pederson is Senior Vice President and President of Specialty Engineered Materials at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Just prior to joining Avient in 2018, he was Vice President of Strategy at Hexcel Corporation, responsible for the company’s M&A strategy and execution. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

At Avient, we use a collaborative approach to deliver the specialty polymer formulations, services and sustainable material solutions specific to your application and property needs.

At Avient, we have engineered polymers, standard and high-temperature colorants and additives, and high-performance fibers for accelerating deployment, delivering reliability, boosting function, and enhancing product protection. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

Microsoft Word - Avient_SecurityPolicy_2020 SECURITY POLICY Avient Corporation places a high priority on protecting the security of our people, our buildings and equipment, and our proprietary information, technology and systems. It is the responsibility of each person at Avient, including contractors, suppliers, and visitors, to follow all security procedures, to remain aware of and report all possible security threats, to remain committed to working in a secure and safe manner, and to be prepared to respond to emergencies safely and effectively.

SECURITY POLICY Avient Corporation places a high priority on protecting the security of our people, our buildings and equipment, and our proprietary information, technology and systems. It is the responsibility of each person at Avient, including contractors, suppliers, and visitors, to follow all security procedures, to remain aware of and report all possible security threats, to remain committed to working in a secure and safe manner, and to be prepared to respond to emergencies safely and effectively.

No. 0962.01) 09/05/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 80 North West Street Norwalk, OH 44857 Craig Polta Phone: 419 660 4278 MECHANICAL Valid To: September 30, 2025 Certificate Number: 0962.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following tests on plastics: Test Method(s) Test Name ASTM D256; ISO 180 Notched Izod ISO 179 (1eA) Determination of Charpy Impact ASTM D523 Gloss ASTM D618 (Method A) Conditioning of Test Specimens ASTM D792 (Method A) Specific Gravity ASTM D1238 (Method B) Melt Flow Rate ASTM D3012 Thermal Oxidative Stability ASTM D3641 Injection Molding Test Specimens FMVSS 302 Flammability ASTM E1331; SAE J1545 Spectrophotometric Color Difference SAE J1885 (Rev. Accredited Laboratory A2LA has accredited AVIENT CORPORATION Norwalk, OH for technical competence in the field of Mechanical Testing This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories.

No. 10231X Form W-9 (Rev. 10-2018) AVIENT CORPORATION ✔ 5 D 33587 WALKER ROAD AVON LAKE, OH 44012 3 4 1 7 3 0 4 8 8 7/20/2020

Roman, Secretary of State of the Government of Puerto Rico, CERTIFY: That on July 13, 2020, at 08:50 AM, "POLYONE PUERTO RICO, LLC", registry number 365432, performed the following transaction: Name Change Previous Actual POLYONE PUERTO RICO, LLC AVIENT PUERTO RICO, LLC CERTIFICATE OF AMENDMENT Government of Puerto Rico IN WITNESS WHEREOF, the undersigned by virtue of the authority vested by law, hereby issues this certificate and affixes the Great Seal of the Government of Puerto Rico, in the City of San Juan, Puerto Rico, today, July 13, 2020.

Certificate Number: Certificate expiration date: Effective date: 31-10-2022 30-10-2025 Expiry date of previous cycle: 30-10-2022 31-10-2016 ES133794 Scope of certification: MANUFACTURING OF MASTERBATCHES, ADDITIVES AND COMPOUNDS FOR PIGMENTING THERMOPLASTIC MATERIALS USED IN FOOD INDUSTRY ISO 22000:2018 POLIGONO INDUSTRIAL EZCABARTE, C/H, Nº3 - 31194 - ORICAIN - NAVARRA - ESPAÑA AVIENT ESPAÑA, S.L.

James DOC ID ----> 202018203934 S T A T E OF O H I O C E R T I F I C A T E Ohio Secretary of State, Frank LaRose 4463782 It is hereby certified that the Secretary of State of Ohio has custody of the business records for and, that said business records show the filing and recording of: AVIENT CORPORATION United States of America State of Ohio Office of the Secretary of State Witness my hand and the seal of the Secretary of State at Columbus, Ohio this 23rd day of April, A.D. 2020. 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.”