Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. The Company acquired the Clariant Color business on July 1, 2020.

POMMERLOCH, Luxembourg – October 1, 2018 – Wire and cable OEMs rely on PolyOne’s industry-leading OnCap™ Aversive masterbatch additives to pro October 1, 2018 Independent Testing Proves PolyOne Shock-Absorbing TPEs Protect Phone Cases from Impact Better Than TPUs

Information Systems Use Policy Effective date: September 1, 2021 Available on the Avient Ethics & Corporate Policies Page on the Loop Confidential 2 Avient IT Department Information Systems Use Policy September 1, 2021 Table of Contents Purpose .......................................................................................................................................................... 3 Scope.............................................................................................................................................................. 3 Usage ............................................................................................................................................................. 3 Expectations for Use of Information Systems ........................................................................................... 3 Prohibited Uses of Information Systems ................................................................................................... 3 Personal Use .............................................................................................................................................. 4 Social Media .............................................................................................................................................. 4 Enforcement and Monitoring ......................................................................................................................... 4 Questions and Additional Information .......................................................................................................... 5 Document Change and Review History ........................................................................................................ 5 Appendix A: Definitions................................................................................................................................ 6 Confidential 3 Avient IT Department Information Systems Use Policy September 1, 2021 PURPOSE This Information Systems Use Policy (“Policy”) establishes acceptable and prohibited uses of Avient’s Information Systems to protect Avient and its employees and affiliates from both intentionally and unintentionally harmful actions by Users. Confidential 4 Avient IT Department Information Systems Use Policy September 1, 2021 Additionally, the following Information Systems uses are prohibited unless specifically authorized by Avient or authorized Avient IT representatives: • Revealing account usernames, passwords, or other Personal Data to others or allowing use of Information Systems by others, including family and other household members; • Conducting any form of network monitoring that could intercept data not intended for the recipient User; • Circumventing User authentication or security of any Information Systems; or • Using personal devices to access Confidential Data or connect to Information Systems. Confidential 5 Avient IT Department Information Systems Use Policy September 1, 2021 QUESTIONS AND ADDITIONAL INFORMATION For additional details regarding cybersecurity and incidence response, please refer to Avient’s Cyber and Data Incident Response Policy.

PG TPE BLACK PG TPE RED PG TPE LILAC

TPE GREEN P359C TPE MINT 573C TPE COOL GRAY 4C

WHITE HOSE TPE TPE BLUE SPLITTER TPE BLUE SPLITTER CMPD

TPE FORCE TAN 7527C TPE COBRA OLIVE 7769C TPE ARMOR GRAY 424C

PG 318048.00 BU TPE PG 318049.00 BU TPE PG 318284.00 BU TPE

GREEN 375C TPE RED 226C TPE BLUE 292C TPE

TPE GREY 425C TPE MINT 351C TPE FLAT DARK EARTH