NYSE: AVNT) AVIENT CORPORATION S P E C I A LT Y P O R T F O L I O T R A N S F O R M AT I O N C O N T I N U E S W I T H D Y N E E M A A C Q U I S I T I O N 2 0 2 2 F I R S T Q U A R T E R R E S U LT S DISCLAIMER 2 Forward-Looking Statements In this presentation, 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. F I RS T Q UART E R 2022 RE S U LT S $123 $136 $0.89 $0.99 Q1 2022 PERFORMANCE (TOTAL COMPANY) 4 $1,162 $1,294 (+ 14% excluding FX) Adjusted EPS (+ 15% excluding FX) (+ 16% excluding FX) (in millions) (in millions) Sales Adjusted Operating Income Q1 2022 SEGMENT PERFORMANCE 5 CAI $609 $650 SEM Distribution $89 $95 + 7% (+ 10% excluding FX) $363 $433 $24 $24 + 19% Flat $217 $245 $34 $40 + 7% (+ 11% excluding FX) + 13% (+ 17% excluding FX) + 18% (+ 20% excluding FX) Q1 2021 $1,162 $123 Sustainable Solutions 19 8% 7 Healthcare 32 21% 6 Composites (excl. Purchase price multiple rapidly declining on strength of business and synergy capture (1) Financial information is pro forma to include a full year of Clariant Color acquisition 11.9% 16.2% 2019PF 2021 EBITDA Margins SPECIALTY TRANSFORMATION 7% 46% 66% 86% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021 2022 PF % o f A dj us te d EB IT D A(1 ) JVs Distribution Performance Products & Solutions Specialty (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution (2) 29 12% 18% 16% 15% 15% 14% 14% 28% 28% 26% 25% 22% 21% 19% 16% 12% 9% 9% Av ie nt T od ay Av ie nt P F AV Y PP G KW FU PM C E AL B FM C AS EC EM XL U SC BN U VR Median: 21%Median: 15% 2022 EBITDA MARGINS VS.

Di el ec tr ic co ta Di el ec tr ic co Frequency [GHz] Frequency [GHz] Pallet number (1250 kg/pallet) PREPERM™ PPE950 PREPERM™ PPE800 PREPERM™ PPE440 PREPERM™ PPE320 PREPERM™ PPE260 -- Dielectric constant target -- +/- 2% 3,76 3,78 3,80 3,82 3,84 3,86 3,88 3,90 3,92 3,94 0 1 2 3 4 5 6 7 8 D ie le ct ri c P a llet number (1250 k g/pa llet ) Die le ctric cons ta nt ta rge t +/- 2 % t PR E PE RM® PPE 95 0 PR E PE RM® PPE 80 0 PR E PE RM® PPE 44 0 PR E PE RM® PPE 32 0 PR E PE RM® PPE 26 0 t PR E PE RM® PPE 95 0 PR E PE RM® PPE 80 0 PR E PE RM® PPE 44 0 PR E PE RM® PPE 32 0 PR E PE RM® PPE 26 0 t PR E PE RM® PPE 95 0 PR E PE RM® PPE 80 0 PR E PE RM® PPE 44 0 PR E PE RM® PPE 32 0 PR E PE RM® PPE 26 0 Copyright © 2022, Avient Corporation.

TPEE AND TPU FILM MANUFACTURER H O T M E L T A D H E S I V E F I L M • Anti-phenol yellowing after storage • Keep natural color of product • No impact on melt flow ability • Prevented the appearance quality from yellowing after storage • Had no negative impact on the product’s mechanical properties • Extended the shelf life and durability of the product CesaTM Anti-phenolic Yellowing Additive KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION FUNCTIONALITY + CONVENIENCE LEARN MORE Avient Corporation 1 https://www.avient.com/products/polymer-additives Slide 1: TPEE and TPU Film MANUFACTURER

Microsoft PowerPoint - AVNT Mar 2022 Presentation AVIENT CORPORATION I N V E S T O R M E E T I N G S (NYSE: AVNT) M A R C H 2 0 2 2 DISCLAIMER Forward-Looking Statements In this presentation, 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. D is t. ) Source: Peer data per Bloomberg market data as of February 15, 2022. OUR VALUATION VERSUS PEERS Avient Specialty Other 5.4 8.5 10.1 10.0 15.7 15.0 14.2 12.7 10.2 25.0 19.7 17.7 13.2 12.3 10.0 9.9 8.9 8.5 8.3 6.6 01 1) 01 6) 02 1) (T o da y) Historic Multiple SUMMARY: WHY INVEST IN AVIENT?

INVESTMENT IN COMMERCIAL RESOURCES D R I V E S I N N O VAT I V E P R O D U C T P O R T F O L I O AN D S AL 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 TARGET NET LEVERAGE BY 2021 ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS RETURNING VALUE TO SHAREHOLDERS 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 2020PF* 2021E Growing Dividend Cumulative Buybacks Net Leverage $ $ 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. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 17 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 3 2 2 3 3 3 3 4 5 5 5 5 5 6 6 7 7 9 t (E x c l. D is t.

Polyone Corporation at BB&T Capital Markets Commercial & Industrial Conference

PE Tarpaulin manufacturer PE TARPAULIN MANUFACTURER O U T D O O R T A R P S • Resist UV light degradation in European climates for an extended period • Maintain color stability • Enhanced UV resistance against UV degradation • Delivered colors stability with good light fastness • Provided cost effectiveness by combining colorant and UV solutions • Offered in-house Q-Lab UV (QUV) tester to meet strict customer standard / requirement Smartbatch Combination Colorants and Additives KEY REQUIREMENTS WHY AVIENT?

BHD. 9-3A-1, JLN METRO PERDANA BARAT 1, TMN USAHAWAN KEPONG UTARA, 52100 KUALA LUMPUR WP KUALA LUMPUR A V I E N T C O L O R A N T S M A L A Y S I A S D N .

ANTENNA MANUFACTURER P H A S E S H I F T A N T E N N A • Achieved miniaturization through customized high dielectric constant (Dk) materials • Offered high Dk grades with superior processing window and stability compared to lower Dk ( < Dk6.0) grades • Verified dimensional and electrical stability would also meet needs of navigation system substrate to streamline sourcing Edgetek™ Formulations for 5G KEY REQUIREMENTS WHY AVIENT?

DUAL-BAND ANTENNA MANUFACTURER P O S I T I O N I N G S Y S T E M • Ceramic replacement • Miniaturization • Moldable • Formulated materials for specific Dk/Df values • Delivered lower signal loss versus ceramic • Enhanced mechanical properties and eliminated secondary processing • Provided stable dielectric performance during injection molding process Edgetek™ Dielectric Constant (Dk) Formulations KEY REQUIREMENTS WHY AVIENT?