https://www.avient.com/investors https://edge.media-server.com/mmc/p/izyekkyu https://www.avient.com/investors https://register.vevent.com/register/BI3c8fe685f32648e0abfb1ac2c77a59d9 https://www.avient.com/investors/events-presentations 3 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. For more information, visit https://www.avient.com. https://www.avient.com/news-events https://www.avient.com/ 4 Forward-looking Statements 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.

Refer to website: https://www.avient.com/sites/default/files/resources/PolyOne%25 20Code%2520of%2520Conduct_0.pdf Modern Slavery Statement: Yes. http://www.avient.com/contact/global-directory-and-contacts http://www.avient.com/ https://www.avient.com/sites/default/files/resources/PolyOne%2520Code%2520of%2520Conduct_0.pdf https://www.avient.com/sites/default/files/resources/PolyOne%2520Code%2520of%2520Conduct_0.pdf http://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement http://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement http://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement Approved Corporate : Template/Form Document #: DOC-01879 Revision: 8 Document Owners: Brian Hoar Effective Date: May 13, 2022 Title: QF-02 Quality Standard Response Page 10 of 19 Only the electronic version of this document in ETQ is the controlled version of the document. Yes; https://www.avient.com/sites/default/files/resources/PolyOne_Co nflict_Minerals_Policy_0.pdf Are you willing to provide material content information (i.e.

Avient’s Taoyuan site supports customers in Greater China, Japan, South Korea, and Southeast Asia with sustainable polyester fiber solutions for sportswear and casual wear applications primarily made from recycled PET flakes.

The ColorNow service is commercially available in Southeast Asia and Greater China and is currently being tested in Europe.

https://itunes.apple.com/us/app/polyone-oncolor-portfolio/id594944287?

Avient is experiencing a significant surge in demand for sustainable materials solutions, particularly in the Asia-Pacific region,” said Derrick Chan, General Manager of Color & Additives Southeast Asia at Avient.

Note: By default, the CSP is shown in US English. Change languages To change the CSP language, select the language menu (default should be “English (US)”) at the bottom of the page and choose your language and region. https://compass.coupa.com/en-us/products/product-documentation/supplier-resources/for-suppliers/core-supplier-onboarding/announcements-and-general-info/supported-languages-in-the-csp

The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media-server.com/mmc/p/p4owuchb.   To participate in the audio-only portion of the call, dial 1-844-835-7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 2587092.  To access, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 2587092.

https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf • предоставьте сотрудникам и другим заинтересованным сторонам возможность сообщать о вопросах или проблемах, связанных с вашим бизнесом, людьми или продуктами

Additional information is available at https://www.cbp.gov/trade/forced-labor In furtherance of the foregoing, we expect our Suppliers to: • Supply only conflict free 3TG metals to Avient; https://nam10.safelinks.protection.outlook.com/? url=https%3A%2F%2Fwww.cbp.gov%2Ftrade%2Fforced-labor&data=05%7C01%7Cjacqueline.thomson%40avient.com%7Ca0427e02fa1b4b576fe208db6dac207e%7C7bc21b5c83b04482be9e2825d33c1759%7C0%7C0%7C638224359373869329%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=xxFjS7ADNXRYgriLexntpLUCOyllzLGactoRmj2EoCE%3D&reserved=0 https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf • Engage in due diligence of supply chains by following a nationally or internationally recognized due diligence framework; • Upon request, report to Avient on its due diligence process and certify that 3TG metals supplied to Avient from the Covered Countries are conflict free; and • Promptly report to Avient any supply chain changes regarding the origin of 3TG metals or conflict status