Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/k7okojz2. http://www.avient.com/investors https://edge.media-server.com/mmc/p/k7okojz2 https://edge.media-server.com/mmc/p/k7okojz2 http://www.avient.com/investors 4 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. # # https://www.avient.com/ 5 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.

Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/yrq7mgm9.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 7899765. http://www.avient.com/investors https://edge.media-server.com/mmc/p/yrq7mgm9 https://edge.media-server.com/mmc/p/yrq7mgm9 http://www.avient.com/investors 3 Full Year Comparisons Pro Forma for Acquisition of Clariant’s Color Business The company acquired Clariant’s color (“Clariant Color”) business on July 1, 2020 (the “Acquisition Date”). # # http://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.

Este Aviso de privacidad del Candidato ("Aviso") establece cómo Avient recopila, usa o revela datos personales de los solicitantes de empleo y candidatos (colectivamente, "usted") cuando usted accede o usa nuestros sitios web de carreras, incluyendo https://avient.referrals.selectminds.com/ (los “Sitios”). Tenga en https://edpb.europa.eu/about-edpb/board/members_en cuenta que la ley aplicable puede requerir que Avient conserve su curriculum vitae durante un periodo específico incluso si usted solicita que Avient no considere su candidatura para el empleo. 8. mailto:PRIVACY.OFFICER@AVIENT.COM https://privacyportal.onetrust.com/webform/b25cf7b1-a93a-4d26-8c84-ceda4d0ae91b/e180cbe4-d1b9-49bd-b621-cb5f6a0f42cb https://privacyportal.onetrust.com/webform/b25cf7b1-a93a-4d26-8c84-ceda4d0ae91b/e180cbe4-d1b9-49bd-b621-cb5f6a0f42cb mailto:PRIVACY.OFFICER@AVIENT.COM ** En el caso de los candidatos de Perú, los datos personales se conservarán en el banco de datos"[avient.taleo.net]" registrado en el Registro Nacional de Protección de Datos Personales, con el código RNPDP-PJP, N.º [*].”

https://www.avient.com/investors https://edge.media-server.com/mmc/p/pyh3w2ip/ https://www.avient.com/investors https://register.vevent.com/register/BId7a8a09515a442e9b13c4d5558d927fe https://www.avient.com/investors/events-presentations 4 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/. 5 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.

PEDOMAN PERILAKU | 14 PEDOMAN PERILAKU MENGHORMATI SEMUA KEJUJURAN DI INTEGRITAS DALAM TANGGUNG JAWAB https://www.avient.com/company/policies-and-governance/it-systems-use-policy https://www.avient.com/company/policies-and-governance/it-systems-use-policy Informasi Berhak Milik dan Rahasia, Gagasan, dan Kekayaan Intelektual Keunggulan kompetitif kita dapat dengan mudah hilang jika orang lain mendapatkan akses ke informasi berhak milik, gagasan inovatif, atau kekayaan intelektual Avient dan menggunakannya untuk mengembangkan produk bersaing atau mendapatkan kepercayaan pelanggan kita. PEDOMAN PERILAKU | 17 PEDOMAN PERILAKU MENGHORMATI SEMUA KEJUJURAN DI INTEGRITAS DALAM TANGGUNG JAWAB http://Kebijakan Penggunaan Sistem Informasi Avient, http://Kebijakan Penggunaan Sistem Informasi Avient, http://polynet/ethics/CorporatePolicies/CyberandDataIncidentResponsePolicy/tabid/2729/Default.aspx Informasi dan Perdagangan Orang Dalam Di Avient, Anda mungkin mengetahui informasi penting terkait Avient atau perusahaan mana pun yang berbisnis dengan kita yang belum diungkapkan kepada publik. subject= http://Avient.com/sustainability https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 T: Supervisor saya meminta saya untuk mengikuti prosedur pembuangan limbah baru, tetapi saya tidak yakin apakah prosedur itu aman atau bahkan sah.

VERHALTENSKODEX | 17 UNSER EHRLICHKEIT BEI INTEGRITÄT IN SOZIALE VERANTWORTUNG http://polynet/ethics/CorporatePolicies/InformationSystemsUsePolicies/tabid/1885/Default.aspx http://polynet/ethics/CorporatePolicies/InformationSystemsUsePolicies/tabid/1885/Default.aspx http://polynet/ethics/CorporatePolicies/CyberandDataIncidentResponsePolicy/tabid/2729/Default.aspx Insiderinformationen und- handel Es kann sein, dass Sie bei Avient Kenntnis von erheblichen Informationen mit Bezug zu Avient oder zu einem Unternehmen, mit dem wir in Geschäftsbeziehung stehen, erhalten, die nicht der Allgemeinheit gegenüber offengelegt wurden. VERHALTENSKODEX | 21 UNSER EHRLICHKEIT BEI INTEGRITÄT IN SOZIALE VERANTWORTUNG https://www.avient.com/company/policies-and-governance/global-policy-anti-bribery-and-anti-corruption https://www.avient.com/company/policies-and-governance/global-policy-anti-bribery-and-anti-corruption Beauftragte und Berater Wir müssen gewährleisten, dass Beauftragte, Berater und sonstige Stellvertreter, die im Namen von Avient handeln, keine Bestechungszahlungen oder Kickbacks anbieten oder erhalten oder sich an einem sonstigen illegalen oder unethischen Verhalten beteiligen. VERHALTENSKODEX | 27 UNSER EHRLICHKEIT BEI INTEGRITÄT IN SOZIALE VERANTWORTUNG http://Avient.com/sustainability https://www.avient.com/company/sustainability/sustainability-report https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 F: Mein Vorgesetzter bat mich, ein neues Abfallentsorgungsverfahren zu befolgen, aber ich bin nicht sicher, dass es sicher oder überhaupt legal ist.

A full copy of Avient’s Code of Conduct is available in over 20 languages and can be found here: Avient’s Position on Human Rights can be found here http://www.avient.com/ https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/sites/default/files/2021-07/avient-human-rights-position-statement-updated-july-2021.pdf Page 2 of 3 Training To mitigate against the risk of non-compliance with our policy, Avient requires all associates to complete mandatory Code of Conduct training.

https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colorant-chromatics-pvdf-processing-aids Slide 1: Monofilament manufacturer

https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colorant-chromatics-pvdf-processing-aids Slide 1: Wire & cable oem

https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-combination-colorants-additives Slide 1: Consumer packaged goods company