CLEVELAND – The Board of Directors of PolyOne Corporation (NYSE: POL), has declared a quarterly cash dividend of ten cents ($0.10) per share on the common stock outstanding, representing a 25% increase to the quarterly cash dividend and the fourth consecutive year of annual dividend growth. Media Contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

FEARON Director Date: February 19, 2019 Richard H. GOFF Director Date: February 19, 2019 Gregory J. PREETE Director Date: February 19, 2019 Kerry J.

Pettegrew Senior Manager – Product Stewardship Director EH&S - Product Stewardship

Sweden Filial Address: Drottninggatan 56 411 07 GÖTEBORG County and municipality: Västra Götaland, Göteborg Note: MANAGING DIRECTOR 630516 Palm, Christoph, Gruss Strooss 35, L-9991 WEISWAMPACH, LUXEMBURG AUDITORS 556053-5873 Ernst & Young Aktiebolag, Box 7850, 103 99 STOCKHOLM Represented by: 850807-5135 PRINCIPALLY RESPONSIBLE AUDITOR 850807-5135 Edman, Mikael Thomas Gunnar, c/o Ernst & Young AB, 401 82 GÖTEBORG SIGNATORY POWER Signatory power alone by Palm, Christoph FINANCIAL YEAR Registered financial year: 0101 - 1231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2021-11-29 Avient S.à r.l., Sweden Filial 2018-08-28 PolyOne S.à.r.l., Sweden Filial INFORMATION ABOUT THE FOREIGN COMPANY B226205 Avient S.á.r.l. 19, Route de Bastogne L-9638 Pommerloch LUXEMBURG Registered office of the foreign company: Pommerloch Name of the register in which the foreign company is registered: e-Certificate of registration Swedish Companies Registration Office BRANCH D1a- 6858922 Registration number Date of registration of the company Document created on Date of registration of current name Page 516411-5031 2018-08-28 2021-11-30 17:11 2021-11-29 3 (3) RCS, Registre de Commerce, Luxembourg Business Register LUXEMBURG Foreign company's financial year: 0101 - 1231 The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com, Media Contact: Kyle G.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G.

Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact, Kyle G.

There is an ongoing market need for electronic applications to achieve superior aesthetics and performance, lower system cost, and greater sustainability,” said Matt Mitchell, director, global marketing for Specialty Engineered Materials at Avient.