http://www.avient.com/investors https://sustainabilityday2023.avient.com/ http://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. Rose Vice President, Marketing and Communications +1 440-930-3162 kyle.rose@avient.com http://www.avient.com/ http://www.avient.com/news mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com

BATTERY RANGE EXTENSION Lightweighting SOLUTION: Long fiber reinforced polyketone (PK) thermoplastics © 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-rec-formulations https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-rec-formulations https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons https://www.avient.com/products/long-fiber-technology/complet-pke-formulations https://www.avient.com/products/long-fiber-technology/complet-pke-formulations https://www.avient.com/products/long-fiber-technology/complet-pke-formulations

Verifique validez en http://fojas.cl/d.php? cod=not71ediezm&ndoc=123456880196.- .- CUR Nro: F082-123456880196.- www.fojas.cl Pag: 1/1 Pag: 1/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 2/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 3/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 4/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 5/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 6/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 7/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 8/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 9/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 10/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 11/11 2021-05-31T12:52:48-0400 Santiago - Chile EDUARDO JAVIER DIEZ MORELLO Notario Publico Eduardo_Diez_Morello

https://www.avient.com/company/policies-and-governance/code-conduct https://secure.ethicspoint.com/domain/media/en/gui/49178/index.html Avient Corporation 33587 Walker Road Avon Lake, OH 44012 3 Our Supply Chain At Avient, we commit to comply with laws and regulations supporting human rights such as the California Transparency in Supply Chains Act, the UK Modern Slavery Act, the Dodd-Frank Act requiring disclosures on conflict minerals, and the EU’s - Conflict Minerals Regulation. Our disclosures are located at: https://www.avient.com/company/policies-and-governance/ca-transparency-act-disclosure https://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking- statement We reinforce Our Commitment to human rights, as set forth above, throughout our organization by incorporating and reflecting these principles in organizational policies, training programs, and our governance management framework. https://www.avient.com/company/policies-and-governance/ca-transparency-act-disclosure https://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement https://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement https://www.avient.com/sites/default/files/2020-10/supplier-code-of-conduct.pdf

Their use is subject to conditions available at https://www.sustainalytics.com/legal-disclaimers ISS DISCLAIMER STATEMENT E&S Disclosure QualityScore measures and identifies risk in environmental and social areas of concern through thorough analysis of company disclosures. Read more: https://www.issgovernance.com/esg/ratings/ http://www.sustainalytics.com/ https://www.sustainalytics.com/legal-disclaimers https://www.issgovernance.com/esg/ratings/

SOURCE: https://archive.ellenmacarthurfoundation.org /explore/the-circular-economy-in-detail https://archive.ellenmacarthurfoundation.org/explore/the-circular-economy-in-detail The goal of the circular economy is to be a continuous, self-supporting system. SOURCE: https://ellenmacarthurfoundation.org /topics/climate/overview SOURCE: https://ellenmacarthurfoundation.org /topics/plastics/overview Why is the Circular Economy Relevant Today? SOURCE: https://www.gartner.com/en/newsroom/press-releases/2019-09-26-gartner-predicts- circular-economies-will-replace-line SOURCE: https://www.greenbiz.com/article/6-circular-economy-trends-will-shape-2020 What Up Next for the Circular Economy?

 * New Plan http://www.ec.gc.ca/default.asp? lang=En&n=3C401D5C-1 http://www.ec.gc.ca/default.asp? lang=En&n=62DA6A44-1 http://healthycanadians.gc.ca/index-eng.php http://www.voyage.gc.ca/index-eng.asp http://www.servicecanada.gc.ca/eng/home.shtml http://www.jobbank.gc.ca/intro-eng.aspx http://actionplan.gc.ca/eng/index.asp http://www.canada.gc.ca/home.html

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 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 • 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

4/16/2021 Comprovante de Inscrição e de Situação Cadastral https://servicos.receita.fazenda.gov.br/servicos/cnpjreva/Cnpjreva_Comprovante.asp 1/2 Comprovante de Inscrição e de Situação Cadastral Cidadão, Con�ra os dados de Identi�cação da Pessoa Jurídica e, se houver qualquer divergência, providencie junto à RFB a sua atualização cadastral. Para informações sobre política de privacidade e uso, .clique aqui COMPROVANTE DE INSCRIÇÃO E DE SITUAÇÃO CADASTRAL Passo a passo para o CNPJ Consultas CNPJ Estatísticas Parceiros Serviços CNPJ https://servicos.receita.fazenda.gov.br/Politica/Privacidade.htm https://servicos.receita.fazenda.gov.br/servicos/cnpjreva/index.html http://www.redesim.gov.br/passo-a-passo http://www.redesim.gov.br/consultas-cnpj https://estatistica.redesim.gov.br/ http://www.redesim.gov.br/parceiros http://www.redesim.gov.br/servicos

We are Avient. 6 B ET T E R TO G E TH E R : P O LYO NE A N D C L A R I A N T M A S T ER BATC H Key Financial Data (1) 2021E Sales $4.3 billion 2021E EBITDA $560 million 2021E Free Cash Flow $275 million 88% of EBITDA from specialty applications (1) As of April 30, 2021 webcast Synergies ($ millions) Three-Year Estimate Administrative $ 20 Sourcing 30 Operational 25 Total Synergies $ 75 7 C L A R I A N T C O S T S Y N ERG I E S • On-track to realize $45 million of expected synergies in 2021 – up from previous estimate of $35 million • Relentless focus on guiding principles for acquisition integration: safety first, employee collaboration and exceeding customer expectations • Future revenue synergies in excess of $50 million by 2025 are not part of these estimates and represent additional growth over the long term 8 • Barrier technology • Functional additives • Processing aids • Flame retardants • Light-weighting additives Complementary Technologies • Clariant’s approved formulations and certified facilities • Legacy PolyOne’s leading share in distribution channels Healthcare Solutions • Clariant’s position in SE Asia, Latin America, Germany & Italy • Legacy PolyOne’s position in U.S., Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling C O M P L E M E NTA RY T E C H N O LOG I E S A N D C U S TO M ER S D R I V E R E V E N U E S Y N E RG I E S Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable.