Copyright © 2021, Avient Corporation.

To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation.

A NR 2795/2021; NOTARIUSZ KRZYSZTOF ŁASKI; KANCELARIA NOTARIALNA W WARSZAWIE ZMIENIONO; §2 UMOWY SPÓŁKI Rubryka 5 1.Czas, na jaki została utworzona spółka NIEOZNACZONY 2.Oznaczenie pisma innego niż Monitor Sądowy i Gospodarczy, przeznaczonego do ogłoszeń spółki ­­­­­­ 3.Wspólnik może mieć: WIĘKSZĄ LICZBĘ UDZIAŁÓW 4.Czy statut przyznaje uprawnienia osobiste określonym akcjonariuszom lub tytuły uczestnictwa w dochodach lub majątku spółki nie wynikających z akcji?

Associates Trained in LSS (Cumulative) LSS Projects Completed (Cumulative) 2011 2013 2015 2017 2019 2021 2023 434 996 1,854 2,718 3,161 4,172 323 1,176 2,999 4,544 6,813 7,423 Customer Centric Selling CCS is at the core of how we ser ve our customers and collaborate with them to solve their most pressing challenges. GRADUATES 331 GRADUATES 148 Leadership Development Training per Participant Over 50 Hours 0 100 200 300 400 500 NextGen & Elevate Program Participants 311 2013 2015 2017 2019 2021 2023 216 125 47 369 479 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2023 33Sustainability Report | 2023 33 Competency Training In 2023, we launched a global training program focused on understanding the key behaviors in our Competency Model, and how to best leverage them for success in an associate’s current or future role. D o ll a r ($ ) M il li o n s 2017 2018 2019 2020 2021 2022 2023 $90 from products introduced in the last 5 years 37% of sales Revenue from Sustainable Solutions* Vitality Index Investment in Innovation *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (1)2020 is Pro Forma to include full year of the Clariant Color business (2)2022 is Pro Forma for the acquisition of APM and the divestiture of Distribution 0 200 400 600 800 1000 1200 1400 2016 2017 2018 2019 2020(1) 2021 2022(2) 2023 $550M $405M $915M $1,135M 8% Or ga nic CA GR Sustainable Solutions represent 90% of the Innovation Pipeline $1,175M $790M $455M $340M HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Sustainability Report | 2023 38 Advancing a Circular Economy As the world continues to shift from operating in a linear economy to a circular economy, Avient is proud to be a part of the solution.

Department of the Treasury’s Office of Foreign Assets Control, le règlement (UE) 2021/821 du Parlement européen et du Conseil du 20 mai 2021 instituant un régime de l’Union de contrôle des exportations, du courtage, de l’assistance technique, du transit et des transferts en ce qui concerne les biens à double usage (refonte), et toutes les sanctions commerciales promulguées par l'UE (« lois sur le contrôle du commerce »).

Avient 2021 Annual Report—Form 10-K 6-7

The tables in the next pages contain all Avient UL94 recognized color concentrates published on UL prospector until March 2021.

To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation.

I N V E ST M E N T I N C O M M ERC I A L R E S O U RC E S D R I V E S I N N O V AT I V E P R O D U C T P O R T F O L I O A N D S A L E S G R O W T H 2.6x TARGET NET LEVERAGE BY 2021 ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS R E TU R N I N G VA LU E TO S H A R E H O L D E R S 12 Free Cash Flow Dividends Share Repurchases Deleveraging Strong track record of cash generation put to work in M&A and return to shareholders while modestly levered 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 11 12 13 14 15 16 17 18 19 20 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 11 12 13 14 15 16 17 18 19 20 3.1x 2.6x 2020PF* 2021E Growing Dividend Cumulative Buybacks Net Leverage $ B n $ p e r sh a re *2020 estimate and Pro forma for acquisition of the Clariant Masterbatch business Cash Generation 19 160 240 2011 2019 2020E ~$240MM Another unique value creation lever at Avient is synergy capture with our recent acquisition of Clariant Masterbatch.

I N V E S T M E N T I N C O M M E RC I A L R E S O U RC E S D R I V E S I N N O V AT I V E P R O D U C T P O R T F O L I O A N D S A L E S G R O W T H 19 160 270 2011 2019 2020E 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 11 12 13 14 15 16 17 18 19 20 21E 2.5x TARGET NET LEVERAGE BY 2021 ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS R E T U R N I N G VA LU E TO S H A R E H O L D E R S 12 Free Cash Flow Dividends Share Repurchases Deleveraging Strong track record of cash generation put to work in M&A and return to shareholders while modestly levered 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 11 12 13 14 15 16 17 18 19 20 2.9x 2.5x 2020PF* 2021E Growing Dividend Cumulative Buybacks Net Leverage $ B n $ p e r s h a re *2020 estimate and Pro forma for acquisition of the Clariant Masterbatch business Cash Generation ~$270MM Another unique value creation lever at Avient is synergy capture with our recent acquisition of Clariant Masterbatch.