Avient Corporation Chairman, President, and Chief Executive Officer, Avient Corporation

Patterson, Chairman, President and Chief Executive Officer, Avient Corporation. We are optimistic we can host this meeting in person, but will make arrangements to do so by video if necessary,” said Jamie Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. For the same reasons, the Company is unable to address the probable significance of the unavailable information. 5 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Patterson, Chairman, President and Chief Executive Officer, Avient Corporation. We are excited to lay out our long-term growth plans, highlighting our sustainable solutions portfolio as well as provide an update on the synergies expected from the Clariant color business acquisition,” said Jamie Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. For the same reasons, the Company is unable to address the probable significance of the unavailable information. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Patterson, Chairman, President and Chief Executive Officer, Avient Corporation. Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. For the same reasons, the Company is unable to address the probable significance of the unavailable information.

TAOYUAN, Greater China – February 15, 2023 – Today, Avient Corporation is excited to announce that its production site in Taoyuan has achieved full compliance with the Global Recycled Standard (GRS) 4.0. Media contact Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@avient.com  Company Officers

Caption: Avient Corporation today announced the ISO 13485:2016 certification of its production site in Taoyuan, Taiwan (near Taipei). Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@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

Avient Corporation 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

Patterson, Chairman, President, and Chief Executive Officer, Avient Corporation. Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. For the same reasons, the company is unable to address the probable significance of the unavailable information.

Ashish Khandpur, President and Chief Executive Officer, Avient Corporation. The underlying growth in these regions helped offset softer demand in Europe and Southeast Asia." 2 2024 Outlook “Looking ahead to the second quarter, we expect adjusted EPS of $0.71, a 13% increase over the prior year," said Jamie Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. For the same reasons, the Company is unable to address the probable significance of the unavailable information.