Hiformer™ – the brand new system for liquid masterbatches. Avient works closely with all relevant stakeholders to define the parameters of your project, identify major objectives and map out potential limitations. Browse and download our literature to learn more about Avient solutions and services.

The 33 most popular colors from our Epic standard portfolio are now even better—with improved opacity and the ability to cure at a lower temperature with our new ‘flexible’ cure profile. Each color is optimized for brilliance and produced in Wilflex facilities to create a best-in-class quality and performance. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021.

IRWIN Senior Vice President, New Business Development & Marketing Excellence Mike Irwin is Senior Vice President, New Business Development & Marketing Excellence at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. He leads the company’s efforts to drive new business development and market development, enhance marketing excellence across Avient, and advance our commercial excellence programs. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

Rijkaart van Cappellen di Amsterdam (Pasi Bassi) in data 10 novembre 2021 e debitamente apostilla- to portante il cambio della denominazione della Società in "Avient S.à r.l.". Ai sensi dell'art. 71 del R.D. 10 settembre 1914 n. 1326, il Comparente dichiara che il deposito avviene nell'interesse della detta società "PolyOne S.à r.l Imposte e spese del presente atto sono a carico della socie- tà "PolyOne S.à r.l.".

NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for 2023 Sustainability Day CLEVELAND – August 28, 2023 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, has announced registration details for a virtual Sustainability Day for investment professionals on Wednesday, September 20, 2023, from 9 a.m. – 11 a.m. https://www.avient.com/investors https://sustainabilityday2023.avient.com/ https://www.avient.com/investors https://register.vevent.com/register/BI0b9400e410674b9d9dc80471579b64b9 https://www.avient.com/investors/events-presentations About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. To access Avient’s news library online, please visit www.avient.com/news # # # Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

OUR COMPANY CULTURE Avient Corporation was originally established as PolyOne Corporation in 2000. In July 2020, following our transformational acquisition of Clariant Color, we branded the collective enterprise as Avient —a new name, for a new kind of materials company. EY has been retained as the independent registered public accounting firm for Avient and its predecessor companies, PolyOne Corporation and The Geon Company, continuously since 1993.

Microsoft Word - Avient Announces Registration Details for December 4th Investor Day _for Microsite 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for December 4th Investor Day CLEVELAND – November 4, 2024 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, will host an Investor Day for the investment community on Wednesday, December 4, 2024, beginning at 10:00 a.m. Eastern Time at the New York Stock Exchange (NYSE). A webcast of the event can be also viewed live at www.avient.com/investors. 2 About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

TECHNICAL BULLETIN 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. Upon initially opening the container, and on some routine frequency thereafter, the plastisol should be gently stirred.

is a wholly-owned subsidiary of PolyOne Corporation. With the new method, the discs’ ability to withstand failure during cycle testing was improved by a factor of 400, far exceeding the requirement of 180,000 cycles. is a wholly-owned subsidiary of PolyOne Corporation.