PC CONDUCTIVE BLACK The Product Code (a.k.a.  Avient Product Code (Material or Material Number) may be found on any of the following:

Est-il conforme au Code et aux valeurs d’Avient? Violations du code Nous prenons très au sérieux les violations de notre Code. Ce Code a été élaboré dans le cadre des valeurs d’Avient.

Est-il cohérent avec le Code et les valeurs d’Avient ? Violations du code Nous prenons très au sérieux les violations de notre Code. Ce Code a été développé dans le cadre des valeurs d’Avient.

Other (see instructions) 4 Exemptions (codes apply only to certain entities, not individuals; see instructions on page 3): Exempt payee code (if any) Exemption from FATCA reporting code (if any) (Applies to accounts maintained outside the U.S.) 5 Address (number, street, and apt. or suite no.) The FATCA code(s) entered on this form (if any) indicating that I am exempt from FATCA reporting is correct. 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

Our Supplier Code of Conduct drives interactions with our suppliers and expectations for doing business. Our Supplier Code of Conduct is aligned more closely with International Labor Organization (ILO) standards. All of our suppliers must sign our Supplier Code of Conduct.

VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. We conducted this verification independently and to our knowledge there has been no conflict of interest. Apex has implemented a Code of Ethics across the business to maintain high ethical standards among staff in their day-to-day business activities.

As a leading company in the field of specialty polymer materials, services and solutions, Avient does not limit itself to simply complying with the legal requirements, but also takes part in a Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 2 variety of voluntary sustainability programs, including commitments to the Responsible Care® principles, Alliance to End Plastic Waste, Operation Clean Sweep® as well as self-initiated commitments such as its Code of Conduct and Code of Supplier Conduct. Part of the way that we’ve integrated those standards into our business is through our Supplier Code of Conduct that covers our entire supplier Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 80 network. The main objective for our Supplier Code of Conduct communications is to help set expectations with our suppliers around economic, social, and environmental performance.

The articles are hereby amended by the Shareholders pursuant to Ohio Revised Code section 1701.71. The articles are hereby amended and restated pursuant to Ohio Revised Code section 1701.72. See Ohio Revised Code section 1701.04 for required provisions.

How Avient can help: You can rely on the expertise we’ve gained in developing automotive material solutions for a wide range of electrical and lighting applications. Therma-Tech™ Thermally Conductive Formulations Stat-Tech™ Electrically Conductive Formulations

Avient will conduct a conference call at 8:00 a.m. About Avient Avient Corporation