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VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. The determination of the GHG emissions is the sole responsibility of Avient. Apex is responsible for expressing an opinion on the GHG emissions statement based on the verification.

Water Reduce heat and weight in your lighting systems with composite-based solutions for everything from heat sinks to housings. Reduce heat and weight in your lighting systems with composite-based solutions for everything from heat sinks to housings.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

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They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Avient can support your development and manufacturing efforts globally from our network of Innovation Centers and the experts at each of these. Water

Stay a few footprints smaller than your competitors by selecting the specialty polymer solutions developed at Avient. Water

Water Avient has a broad portfolio of sustainable solutions that can help customers meet their innovation and sustainable goals through material science.

Insieme, continueremo a costruire una base solida ed etica che guiderà la crescita di Avient ora e in futuro. La nostra integrità personale è alla base dell’immagine di Avient e l’integrità genera credibilità. Concorrenza Avient si impegna a ottenere affari sulla base di prodotti, servizi e performance superiori.