Our customers value the breadth of our solutions as we can tap into a broad array of raw materials to solve their specific needs. Our formulation expertise supports material science decisions, while our processing expertise guides customers to use the materials properly. GUIDANCE (TOTAL COMPANY) 12 15.4% 15.9% Guidance Actual Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE (TOTAL COMPANY) 13 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs. expectations: US & Canada LATAM EMEA Asia • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2023 SEQUENTIAL SALES BY REGION Q 2 2 0 2 3 v s .

EPS • Adjusted EPS of $0.49 includes unfavorable FX of $0.01 • Unfavorable FX was more than offset by favorable effective tax rate and interest expense 0.49 Guidance Actual RANGE 0.46 0.50 9Copyright © . FX • Driven by strong drug delivery sales, new business wins in building & construction and consumer • Higher sales and favorable mix more than offset by variable compensation reset resulting in lower adjusted EBITDA Copyright © . EBITDA 49 56 Q4 2023 Q4 2024 • Growth headlined by healthcare, including engineered materials in remote monitoring devices, as well as composites for building & construction, wind energy, and defense applications • Higher sales and favorable mix contributed to adjusted EBITDA growth which more than offset unfavorable impact of variable compensation EXCL.

The US and Canada region grew organic revenue by 9%, led by continued demand for our composite materials for the building and construction market. Upcoming Investor Day "Over the course of 2024, we have been developing our strategic approach for the next chapter of Avient. For more information, visit 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.

The comprehensive solutions provided by Avient meet customer requirements and improve the safety for consumers of electrical and electronic devices. All of this is backed by project management and technical support around the world through more than 100 facilities. Processing conditions can cause material properties to shift from the values stated in the information.

Our customers value the breadth of our solutions as we can tap into a broad array of raw materials to solve their specific needs. Our formulation expertise supports material science decisions, while our processing expertise guides customers to use the materials properly. GUIDANCE $800 $754 Guidance Actual $128 $123 Guidance Actual Sales Adjusted EBITDA (in millions) $0.56 $0.57 Guidance Actual Adjusted EPS (in millions) 13 • Demand impacted by destocking and cautious customer sentiment • Positive net price benefit: o CAI - Pricing flat and raw material deflation o SEM - Pricing flat with unfavorable mix related to healthcare, more than offset with raw material deflation • Cost reductions driven by Clariant synergies and reduced administrative costs Q3 EBITDA BRIDGE ($ millions) CAI: Price / Mix -) Deflation 22) SEM: Price / Mix (6) Deflation 13) Net Price Benefit 29) Cost Reductions 13) Wage Inflation (8) FX 1) Q3 2023 Actual $ 123) Adjusted EBITDA Q3 2022 Pro Forma $ 137) Demand (49) 14 2023 G U I DAN CE Q4 2023 GUIDANCE VS.

More Cesa™ Fiber Antimosquito Additives enable the production of especially durable, efficient mosquito nets that keep their functionality for more than five years and 20 washings as per WHO recommendations. Protective Materials

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This material is less durable than steel and may hob or wear faster than steel if used at the parting-line. More difficult to machine More scrap

Informações de Contato Caso você tenha quaisquer dúvidas ou preocupações sobre esta Declaração de Privacidade e nossas práticas de privacidade, entre em contato conosco aqui: Formulário de solicitação do titular dos dados US/Canada Avon Lake, United States Global Headquarters Innovation Center Sales Office Manufacturing Plant Avon Lake, OH, United States, 44012 EMEA Pommerloch / Luxembourg Salce Office Regional Headquaters PolyOne S.à r.l., Avient Luxembourg S.à r.l., 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 Latin America Sales Office Manufacturing Plant Regional Headquarters Francisco Nakasato, 1700 Avenue, São Roque da Chave Itupeva, São Paulo, Brazil, 13295-000 Encarregado de Proteção de Dados no Brasil: Fabio Rodrigo Pinardi Lgpd@avient.com * Este canal é exclusivamente destinado às interações entre a Autoridade Nacional de Proteção de Dados (ANPD) e a Avient, não devendo ser utilizado para outros fins. Informações de Contato Caso você tenha quaisquer dúvidas ou preocupações sobre esta Declaração de Privacidade e nossas práticas de privacidade, entre em contato conosco aqui: Formulário de solicitação do titular dos dados US/Canada Avon Lake, United States Global Headquarters Innovation Center Sales Office Manufacturing Plant Avon Lake, OH, United States, 44012 EMEA Pommerloch / Luxembourg Salce Office Regional Headquaters PolyOne S.à r.l., * Este canal é exclusivamente destinado às interações entre a Autoridade Nacional de Proteção de Dados (ANPD) e a Avient, não devendo ser utilizado para outros fins.