Avient IR Presentation - Goldman Sachs and Morgan Stanley Conferences - 10/5/2020 to 10/7/2020 PolyOne Investor Day Presentation - 5/10/2018 PolyOne IR Presentation - KeyBanc - 9/10/13 - w Non GAAP

Avient IR Presentation - Goldman Sachs and Morgan Stanley Conferences - 10/5/2020 to 10/7/2020 PolyOne Investor Day Presentation - 5/10/2018 PolyOne IR Presentation - KeyBanc - 9/10/13 - w Non GAAP

Avient IR Presentation - Goldman Sachs and Morgan Stanley Conferences - 10/5/2020 to 10/7/2020 PolyOne Investor Day Presentation - 5/10/2018 PolyOne IR Presentation - KeyBanc - 9/10/13 - w Non GAAP

Publicación del Jueves 10 de Junio de 2021 CVE 1958564 | Director: Juan Jorge Lazo Rodríguez Sitio Web: www.diarioficial.cl | Mesa Central: +562 2486 3600 Email: consultas@diarioficial.cl Dirección: Dr. Para verificar la autenticidad de una representación impresa del mismo, ingrese este código en el sitio web www.diarioficial.cl DIARIO OFICIAL DE LA REPUBLICA DE CHILE Ministerio del Interior y Seguridad Pública V SECCIÓN CONSTITUCIONES, MODIFICACIONES Y DISOLUCIONES DE SOCIEDADES Y COOPERATIVAS Núm. 42.975 | Jueves 10 de Junio de 2021 | Página 1 de 1 Empresas y Cooperativas CVE 1958564 EXTRACTO EDUARDO DIEZ MORELLO, Abogado, Notario Público, Titular de la 34ª Notaría de Santiago, con oficio en Luis Thayer Ojeda N° 359, comuna de Providencia, certifico: Que por escritura pública de fecha 31 de mayo de 2021, bajo el repertorio N° 8.412-2021, ante mí: En junta extraordinaria de accionistas de PERFORMANCE MASTERBATCHES (CHILE) SpA, inscrita a fojas 51.369 N° 25.460 del Registro de Comercio del Conservador de Bienes Raíces de Santiago correspondiente al año 2019 (la “Sociedad”), celebrada con fecha 28 de abril de 2021, Avient Switzerland GmbH, en su calidad de único accionista de la Sociedad, modificó el nombre o razón social de la Sociedad por “Avient Chile SpA”, reemplazando el artículo Primero de los estatutos por el siguiente: “ARTICULO PRIMERO: Se constituye una sociedad por acciones con el nombre de “AVIENT CHILE SpA”.

May 10, 2012 12:00 PM EDT

Mar 10, 2011 9:30 AM EST

Mar 18, 2014 10:40 AM EDT

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: the effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks; changes in polymer consumption growth rates where the Company conducts business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters, including any developments that would require any increase in the Company’s costs and/or reserves for such contingencies; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, and employee productivity goals; an inability to raise or sustain prices for products or services; an inability to maintain appropriate relations with unions and employees; the speed and extent of an economic recovery, including the recovery of the housing markets; the financial condition of the Company’s customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; disruptions, uncertainty or volatility in the credit markets that may limit the Company’s access to capital; other factors affecting the Company’s business beyond the Company’s control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation; the Company’s ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen disruptions of service or quality caused by such closings and/or production shifts; the timing of the recognition of the charges that will be incurred; separation and severance amounts and plant exit costs that differ from original estimates; amounts for non-cash charges related to asset write-offs, asset impairments, and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; the Company’s ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired companies into the Company’s operations, retain the management teams of acquired companies, and retain relationships with customers of acquired companies, including, without limitation, Spartech Corporation; and other factors described in the Company’s annual report on Form 10-K for the year ended December 31, 2013 under Item 1A, “Risk Factors.” You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. Feb 10, 2025

Aliphatic polyketone, often referred to as just polyketone or PK, is a semi-crystalline engineering resin that is an alternating copolymer of carbon monoxide and ethylene with some propylene (1–10%). Avient also soak-tested its performance against other chemicals including 10% hydrochloric acid, 10% calcium chloride, antifreeze, 10% ammonium hydroxide, 12% sodium hypochlorite (bleach), and ethanol.

June 10, 2019 June 10, 2019 You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the