Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT PolyOne Region North America Country United States of America Questionnaire General Activity Group Trading, wholesale, distribution, rental & leasing The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels. Investors will additionally receive a copy of the CDP Score Report upon request. CDP SCORE REPORT - CLIMATE CHANGE 2020 Your CDP score Average performance B C D C Trading, wholesale, distribution, rental & leasing North America Global Average CDP SCORE REPORT - CLIMATE CHANGE 2020 CATEGORY SCORES If a company scored C or below, they will not have been scored for management or leadership points (the dark purple line represents this).

Would you feel okay if your actions were reported in the news? Certain European countries limit the topics you can report and your ability to report anonymously. An independent company receives all web and phone reports on the Ethics Hotline and reports the information to the Corporate Ethics Officer.

Requests for false invoices or payment of expenses that are unusual, excessive, or inadequately described must be rejected and promptly reported. An independent company receives all website and phone reports received by the Ethics Hotline and reports the information to the Corporate Ethics Officer. All reports will be kept confidential to the extent possible.

The FATCA code(s) entered on this form (if any) indicating that I am exempt from FATCA reporting is correct. You must cross out item 2 above if you have been notified by the IRS that you are currently subject to backup withholding because you have failed to report all interest and dividends on your tax return. Purpose of Form An individual or entity (Form W-9 requester) who is required to file an information return with the IRS must obtain your correct taxpayer identification number (TIN) which may be your social security number (SSN), individual taxpayer identification number (ITIN), adoption taxpayer identification number (ATIN), or employer identification number (EIN), to report on an information return the amount paid to you, or other amount reportable on an information return.

In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on supplier engagement Awareness (C/C-): Knowledge of impacts of supplier engagement Disclosure (D/D-): Transparent about supplier engagement UNDERSTANDING YOUR SCORE REPORT Avient Region North America Country United States of America Questionnaire Chemicals Activity Group Trading, wholesale, distribution, rental & leasing CDP evaluates organizations engagement with their suppliers on climate change. CDP SUPPLIER ENGAGEMENT RATING REPORT 2021 YOUR SER Average performance A- B- B- B- Trading, wholesale, distribution, rental & leasing North America Global Average CDP SUPPLIER ENGAGEMENT RATING REPORT 2021 CATEGORY SCORES Please download the ‘CDP Supplier Engagement Rating Introduction’ for more information on the category ratings.

An independent company receives all website and phone reports received by the Ethics Hotline and reports the information to the Corporate Ethics Officer. All reports will be kept confidential to the extent possible. Antitrust Laws Policy Overview Guide For Compliance Reporting Possible Violations

Energy Management To continuously track progresses made toward achieving environmental goals, Avient has implemented a reporting program that can be found here. Financial Report Our most recent Financial Report can be found here. Information that Avient considers as confidential and will not communicate through questionnaires:  Building and facilities figures  Workforce effective  Organization charts  Shift organization  Unions affiliations  Customers  Suppliers  Procedures  Work instructions  Quality Manuals  FMEA/CCP  Control plans http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/sustainability/sustainability-report/people/human-rights https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/policies-and-governance-0/global-iso-certificate-library https://www.avient.com/resources/safety-data-sheets https://www.avient.com/resources/technical-data-sheets https://www.avient.com/company/sustainability/people/safety https://www.avient.com/company/sustainability/sustainability-report/planet/energy-ghg-emissions https://www.avient.com/investors/investor-news?

To ensure updates reflected in future reports, please ensure the information is updated in SWIM. To ensure updates reflected in future reports, please ensure the information is updated in SWIM. Facility Name Orangeville Plasticizer Report Submitted By (authorized delegate) Najat Kamal I, the authorized delegate, acknowledge that by pressing the "Continue" button, I am electronically submitting the facility TRA Plan Summary for the identified facility.