Addressing this need, Trilliant™ HC Healthcare Formulations series HC8910 and HC8920 are formulated to help OEMs deliver more durable medical devices and equipment while reducing the risk of potential mechanical failure caused by repeated disinfection. Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com Company Officers

To address consumer OEM needs and help OEMs reach their sustainability goals, we’ve developed a new global product line produced in North America, Europe, and Asia, offering a more sustainable alternative to virgin TPE grades. Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

CLEVELAND – April 14, 2023 – Today, Avient Corporation announced the launch of its newly upgraded, advanced computer-aided engineering (CAE) capabilities. Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com Company Officers

Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media Contact Jennifer Huang Avient Corporation jennifer.huang@avient.com   Company Officers

About Avient Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media Contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com    Company Officers

This includes addressing major world crises and finding one’s happiness.  Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com Company Officers

Our new reSound REC family of PCR-based TPEs addresses these challenges and reflects Avient’s firm commitment to sustainability and accelerating the transition towards circularity.” Trade Media Relations Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@avient.com  Company Officers

Finnish Patent and Registration Office Trade Register FI-00091 PRH, FINLAND tel. +358 (0)29 509 5000 registry@prh.fi Page: 1 (2) Business ID: 2046676-4 Date and time of creating the document: 01.12.2020 08:37:55 TRANSLATION OF THE EXTRACT FROM THE TRADE REGISTER, ELECTRONIC 01.12.2020 08:37:54 the details in the register Identifiers Name Avient Finland Oy Business ID 2046676-4 Entered in the register 31.03.2007 Company type Limited company Contact details: Postal address Äyritie 8 E 01510 Vantaa Street address Äyritie 8 E 01510 Vantaa Email tina.ahlquist@clariant.com Telephone 0106808500 Fax 0106808509 Name details Name Avient Finland Oy Auxiliary company name Drycolor Registered office Vantaa Share capital Share capital 169.000,00 € Number of shares 1 000 pcs Nominal value of a share 169,00 € Financial period Financial period 01.01 - 31.12 Financial statements The last financial statements submitted 01.01.2019 - 31.12.2019 Representation Page: 2 (2) Business ID: 2046676-4 Statutory representation: Under the law, the Board of Directors represents the company. Representation based on position: By the Chair of the Board and the Managing Director, each on their own, and by any two Board members jointly Persons role surname, first name(s) / company name date of birth / identity code citizenship Chair of the Board of Directors Merklein, Norbert 03.05.1964 Citizen of Germany Member of the Board of Directors Norén, Jenny Eva Kristina 18.06.1975 Citizen of Sweden Member of the Board of Directors Smeds, Jan-Håkan 22.03.1961 Citizen of Finland Member of the Board of Directors Vetter, Alexander Helmut 04.07.1968 Citizen of Germany Managing Director Norén, Jenny Eva Kristina 18.06.1975 Citizen of Sweden Auditor PricewaterhouseCoopers Oy 0486406-8 Auditor with principal responsibility Grönroos, Maria Alice 19.02.1967 Citizen of Finland Additional information No details about beneficial owners have been registered for the company Name history Avient Finland Oy 01.12.2020 - Clariant Plastics & Coatings (Finland) Oy 04.01.2016 - 01.12.2020 Clariant Masterbatches (Finland) Oy 31.03.2007 - 04.01.2016 Source of information: Finnish Patent and Registration Office

No Content Detail 1 MERSIS number of the Company 0836003561100014 2 Title of the Company Polyone Tekno Polimer Mühendislik Plastikleri Sanayi ve Ticaret Anonim Şirketi 3 Registered office of the Company Orhan Gazi Mah.1683 Sk. No:8 Esenyurt/İstanbul 4 Committed and Paid Company Capital TRY 100,799,000.00 5 Full names of the Board members of the Company (in the event that a legal entity is a board member, that legal entity's MERSIS number, trade name, registered address and its individual representative's full name) • Holger Hans Kronimus • Christoph Palm • Zaneta Gabriela Potoczny 6 Independent auditor's title, registered address, and branch offices (if any). Title: Elit Bağımsız Denetim ve Yeminli Mali Müşavirlik Anonim Şirketi Address: Halaskargazi Cad.