For and on behalf of BSI: Chief Operating Officer Assurance - Americas Certification Date: 2018-05-10 Latest Issue: 2018-05-10 Expiry Date: 2021-05-09 BSI Certificate Number: 691920 IATF Number: 0303891 Page: 1 of 2 This certificate remains the property of BSI and shall be returned immediately upon request. IATF Contracted Office: BSI Assurance UK Limited, registered in England under number 7805321 at 389 Chiswick High Road, London W4 4AL, UK. IATF Contracted Office: BSI Assurance UK Limited, registered in England under number 7805321 at 389 Chiswick High Road, London W4 4AL, UK.

Before a Covered Employee or his or her Related Person engages in any transaction involving Company securities, or the securities of any other company that the Covered Employee knows about by virtue of his or her employment at the Company, a Covered Employee must first obtain approval for the proposed transaction from the Chief Financial Officer and General Counsel, or their designees. The Company may permit exceptions to this policy for individuals only upon prior authorization by any two of the following three officers of the Company: Chief Executive Officer, Chief Financial Officer, and General Counsel. 12. These guidelines include the requirement that plans only be entered into during a time other than during a blackout period and that they include a waiting period thereafter before the first trade pursuant to the trading plan, the length of which varies depending on whether or not you are a director or officer of the Company. 13.

For and on behalf of BSI: Carlos Pitanga, Chief Operating Officer Assurance – Americas Certification Date: 2018-07-11 Latest Issue: 2018-07-11 Expiry Date: 2021-07-10 BSI Certificate Number: 85585 IATF Number: 0315491 Page: 1 of 2 This certificate remains the property of BSI and shall be returned immediately upon request. IATF Contracted Office: BSI Assurance UK Limited, registered in England under number 7805321 at 389 Chiswick High Road, London W4 4AL, UK. IATF Contracted Office: BSI Assurance UK Limited, registered in England under number 7805321 at 389 Chiswick High Road, London W4 4AL, UK.

The Chamber of Commerce recommends that this document be viewed in digital form so that its integrity is safeguarded and the signature remains verifiable. 20 21 -0 4- 12 1 4: 06 :2 8 under number CHE-112.279.714 Sole shareholder since 20-10-2015 (registration date: 03-11-2015) Board members Name Borst, Rainer Erich Date of birth 10-10-1961 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Powers Solely/independently authorised Name Kamalak, Ihsan Date of birth 21-08-1985 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Powers Solely/independently authorised Name Merklein, Norbert Date of birth 03-05-1964 Date of entry into office 05-03-2021 (registration date: 30-03-2021) Powers Solely/independently authorised Extract was made on 12-04-2021 at 14.06 hours.

Richardson, Executive Vice President, Chief Financial Officer Robert M. Patterson, Chairman, President and Chief Executive Officer Michael A. Garratt, Senior Vice President, Chief Commercial Officer Mark D.

KRISTEN GAJEWSKI Chief Human Resources Officer Kristen Gajewski is Senior Vice President, Chief Human Resources Officer at Avient Corporation, a premier provider of specialized and sustainable material solutions and services.

KRISTEN GAJEWSKI Chief Human Resources Officer Kristen Gajewski is Senior Vice President, Chief Human Resources Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world.

LESLIE SEQUEIRA Chief Information Officer Leslie Sequeira is Chief Information Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world.

AMY EVINS Interim Chief Information Officer Amy Evins is Interim Chief Information Officer at Avient Corporation, a premier provider of specialized and sustainable material solutions and services.

EXECUTIVE OFFICERS OF THE REGISTRANT Executive officers are elected by our Board of Directors to serve one-year terms. PolyOne has adopted a code of ethics that applies to its principal executive officer, principal financial officer and principal accounting officer. PolyOne will post any amendments to, or waivers of, its code of ethics that apply to its principal executive officer, principal financial officer and principal accounting officer on its website.