9:00 a.m. February 9. 2021 at 9:00 a.m. ET, February 9, 2021

VERSOLLAN(TM) OM 1255NX-9 ORANGE W/LASER BLUE W/ LASER

VERSAFLEX OM1360-9 MP BLACK PC W/MOLD RELEASE VERSALLOY(TM) XL 9070X-9 (BLACK) BASE

Dynaflex G7650-9 Black EU Neusoft UR842 w/Heat/UV Stabilizer Xencor PPS LGF-3045 NT-9

January 9, 2018 Jan. 9, 2018 9:00 a.m.

October 9, 2017 Oct. 9, 2017 9:00 a.m.

A NR 989/2002 - ZMIENIONO §§ 4; 7 UST. 1, 2, 5; 9 UST. 2, 3, 4; 11 UST. 2, 5; 11A UST. 4; 12 UST. 2; 13 UST. 2; 17 UST. 2 UMOWY SPÓŁKI; 2 20.01.2010 R , REP. A NR 10344/2015, NOTARIUSZ TOMASZ CYGAN, KANCELARIA NOTARIALNA W WARSZAWIE, ZMIANA § 7 UST. 1 ORAZ § 7 UST. 3 UMOWY SPÓŁKI. 9 29.10.2015 R., KANCELARIA NOTARIALNA W WARSZAWIE, NOTARIUSZ TOMASZ CYGAN, REPERTORIUM A NR 15613/2015, ZMIANA §2, §4 UMOWY SPÓŁKI. 10 22.03.2021 R. W TRYBIE ART. 492 § 1 PKT 1 KSH, TJ.

GREEN OPTIMIZED LDR W/UV BEIGE OPTIMIZED LDR W/UV CL.GRN.9 MC-22823PE

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AVIENT: WHO WE ARE 38 21 9 34 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 8,700+ employees 100+ manufacturing plants Key Financial Data 2022E Sales $5.1 billion 2022E EBITDA $635 million 2022E EPS $3.50 >70% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 3 W H O W E A R E – V I S I O N , S T R AT E G Y, C U LT U R E 4 Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. W H AT W E D O : M AT E R I A L S C I E N C E 5 CUSTOM FORMULATION SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2021 $310 205 140 80 75 45 40 20 $915M2021 Sales ($ in millions) *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 6 AVIENT ESG RATINGS Sustainalytics 2021 ESG Risk Ranking RANK (1st = lowest risk) PERCENTILE (1st – lowest risk) Chemicals INDUSTRY 75/449 17 th Specialty Chemicals SUBINDUSTRY 21/124 17 th ISS March 2022 ESG Scores SCORE (1 = Best, 10 = Worst) Environmental 2 Social 1 Governance 4 777 F I R S T Q U A R T E R 2 0 2 2 R E S U L T S $123 $136 2021 2022 $0.89 $0.99 2021 2022 Q1 2022 PERFORMANCE ( T O TA L C O M PA N Y ) 9 $1,162 $1,294 2021 2022 + 11% (+ 14% excluding FX) Adjusted EPS + 11% (+ 15% excluding FX) + 11% (+ 16% excluding FX) (in millions) (in millions) Sales Adjusted Operating Income Q1 2022 SEGMENT PERFORMANCE 10 CAI $609 $650 Sales ($ in millions) SEM Distribution $89 $95 Operating Income + 7% (+ 10% excluding FX) $363 $433 Sales $24 $24 Operating Income + 19% Flat (1) $217 $245 Sales $34 $40 Operating Income + 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. Source: Peer data per Bloomberg market data as of April 21, 2022 86 82 86 86 84 78 77 89 86 81 80 76 76 76 67 67 11 (12) A vi en t A vi en t P F F U L K W R P P G R P M A V Y F M C U N V R B N R H U N H X L E C L C E A S H E M N S C L A LB 12% 18% 16% 15% 15% 14% 14% 28% 28% 26% 25% 22% 21% 19% 16% 12% 9% 9% A vi en t T od ay A vi en t P F A V Y P P G K W R FU L R P M C E A LB FM C A S H E C L E M N H X L H U N S C L B N R U N V R Median: 21%Median: 15% 2 0 2 2 E B I T DA M A RG I N S V S .