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NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, today announced the acquisition of IQAP Masterbatch Group S.L., a privately owned and innovative provider of specialty colorants and additives based in NYSE: POL) is a premier provider of specialized polymer materials, services and solutions. In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

intends to use the net proceeds from the offering to finance, in part, its pending acquisitions of Clariant AG's global masterbatch business (the "Clariant masterbatch acquisition") and Clariant Chemicals (India) Limited's masterbatch business (collectively, the "acquisitions"). NYSE: POL) is a premier provider of specialized polymer materials, services and sustainable solutions. In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

intends to use the net proceeds from the offering to finance, in part, its pending acquisitions of Clariant AG's global masterbatch business (the "Clariant masterbatch acquisition") and Clariant Chemicals (India) Limited's masterbatch business (collectively, the "acquisitions"). NYSE: POL) is a premier provider of specialized polymer materials, services and sustainable solutions. In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

LoC No: 798019/2023 Page 1 of 1 Letter of Conformity Good Manufacturing Practices — Guidelines The Letter of Conformity is granted to Polyone Polymers India Private Limited Plot No. F -27, MIDC, Ranjangaon, Taluka – Shirur, Pune Maharashtra 412220 India Hold this Opinion Statement No. 798019/2023 The Organization has demonstrated that they have followed the guidelines provided for Good Manufacturing Practices as per the ICHQ7 guidelines in their organization for the following Business activity: Research and Development, Manufacture of Color additives, Concentrates and Specialty Formulations for intended use in pharma and other industries Theuns Kotze, Managing Director – IMETA Assurance Last Audit Date: 31.10.2023 BSI Group India Private Limited T: +91-4762-9000 (CIN U74899DL1999PTC101381 info.in@bsigroup.com The Mira Corporate Suites bsigroup.com/en-IN Plot 1&2, Ishwar Nagar, Mathura Road New Delhi-110065, India

Amy M.

It is anticipated that the company will buy back shares through open market purchases or privately negotiated transactions from time to time.   The authorization has no time limit and may be suspended or discontinued at any time. is a premier provider of specialized polymer materials, services and solutions.

NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, has completed the previously announced sale of its Performance Products and Solutions (PP&S) business to is a premier provider of specialized polymer materials, services and solutions. In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

This statement has been published in accordance with section 54(1) of the Modern Slavery Act 2015 and constitutes the second modern slavery and human trafficking statement of ColorMatrix Europe Limited (“ColorMatrix”) and covers the 2022 financial year. ColorMatrix Europe Limited is a wholly owned indirect subsidiary of Avient Corporation, a U.S. publicly-traded corporation listed on the New York Stock Exchange with global headquarters in Avon Lake, Ohio, United States. Avient and its global direct and indirect subsidiaries and affiliates, including ColorMatrix (“Avient”), are intermediate suppliers of specialty polymers and related raw materials designed to meet the specifications of its manufacturing customers.