FUNCTIONALITY TARGET APPLICATIONS BLOOD COLLECTION REAGENT CONTAINERS/ KITS PIPETTE/ LABWARE SELF-TESTING/ POCT INSTRUMENT/ ACCESSORIES Colorants for coding for lab automation/ identification Wide range of colors in various polymers, available in ready-to-use formulation or concentrate adapted to your process Colors – low migration/ interference Ready-to-use formulation to avoid interference with analytical tests; extractable metal data    Colors – biologically evaluated Reduced risk of non compliance to current and proposed regulations such as IVDR     Color in PP, ABS, PC and high temperature polymers with UL listings Ready-to-use solutions/concentrates supporting Underwriters Laboratory requirements of electric enclosures Antistatic for PP, ABS, PC/ABS Permanent/non-migrating ready-to-use formulation; fast decay time independent of % relative humidity Clarifying PP Sorbitol-free, minimizing potential migration   Laser marking for UDI replacing ink printing/labels Activation of the polymer to laser energy give high contrast solvent-free, high speed identification Laser welding for fast, reliable assembly of a range of polymers Custom concentrates and ready-to-use formulations for optically transparent and opaque colors while allowing laser transmission/absorption    Nucleation of semicrystalline polymers e.g. HDPE, PP, POM Fast acting new generation nucleant for PE and PP; improved dimensional stability, thermal and mechanical properties  Protection from moisture for improved barrier Reduced Moisture Vapor Transmission Rate (MVTR) HDPE ready-to-use formulation; moisture absorbing concentrates Protection from oxygen scavenging in PET Reduced transmission of oxygen vacuum loss in BCT (blood collection tubes) and protect reagents from oxygen degradation Protection from UV in transparent containers (PP, PE, PETG, COP) UV blocking in 290–450nm with no impact on clarity; protection of light sensitive reagents Copyright © 2022, Avient Corporation.

One example is such a blend is SEBS with polypropylene (PP). PP is compatible with midblock of SEBS. Figure 1 shows the TEM of two of SEBS/oil/PP compound (1).

WHAT WE DO: MATERIAL SCIENCE CUSTOM FORMULATION SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2021 $310 205 140 80 75 45 40 20 $915M2021 Sales *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 17th Specialty Chemicals SUBINDUSTRY 21/124 17th ISS March 2022 ESG Scores SCORE (1 = Best, 10 = Worst) Environmental 2 Social 1 Governance 4 777 F I RS T Q UART E R 2022 RE S U LT S $123 $136 $0.89 $0.99 Q1 2022 PERFORMANCE 9 $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 10 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. Financials are pro forma for the acquisition of Dyneema® and potential divestiture of Distribution Avient Specialty Other Specialty / Chemical Companies 45 Source: Peer data per Bloomberg market data as of April 21, 2022 Total Enterprise Value / NTM EBITDA With the Dyneema and Clariant Color business acquisition and divestment of the PP&S business, along with the proposed sale of our Distribution business, our exposure is now concentrated in less-cyclical and high-growth markets. OUR VALUATION VERSUS PEERS Avient Specialty Other 5.4 8.5 10.1 9.8 13.8 12.8 12.1 11.8 10.2 21.0 19.2 16.8 13.7 13.6 8.8 8.7 8.7 8.3 8.0 5.6 01 1) 01 6) 02 1) (T od ay ) PM PP AV VR C Historic Multiple APPENDIX Performance Additives 15% Pigments TiO2 Dyestuffs 3%Polyethylene Nylon 6% Polypropylene Other Raw Materials 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 48 • Significant raw material price inflation and tight inventory continued in Q1 2022 o The average cost of hydrocarbon based materials was up 30% o The average cost of non-hydrocarbon based materials was up 20% • Additionally, we continued to experience other supply chain challenges during Q1 related to raw material spot purchases, freight constraints and productivity loss as a result of these shortages Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% Latin America 2021 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 23% 19% Building and END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M 15% 34% Building & 1% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILLION 32% 40% Latin America END MARKET REGION 51 S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 27% Building & 2021 REVENUE | $919 MILLION END MARKET 55% REGION 52 DI S T RI BU T I O N 26% 23% Building and 80% 3% Latin America END MARKET REGION K EY SU PPL IER S 2021 REVENUE | $1 .6 BILLION 53 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 30% 26%Healthcare 14% Building & 2% Energy (16% of sales) 32% Building & (25% of sales) 54 19% Building & US & Canada (50% of sales) 38% 33% Building & LATAM (9% of sales) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

A custom, impact-modified Trilliant™ HC formulation plus technical services met key needs and accelerated commercialization for a drug delivery device Glass-filled, polyketone-based Trilliant™ HC formulation delivers durability, nylon alternative with improved chemical resistance to meet supply and performance demands Provided a more sustainable solution with 60% recycled content while maintaining the performance characteristics of prime PP

X HC 280193#SR-32483 Warm Gray X HC 307640#SR-32185 PP FR 8-6 LMS-1000

X HC- 74150-846-001 Geon(TM) HC DM691C ASTER PURPLE PP FR 8-6 LMS-1000

VERSAFLEX(TM) HC 1348 NATURAL HC-10952-01-3 Nat PP FR 8-6 LMS-1000

Trilliant HC 3110-0007 Gold/Yellow X HC 422701A-MS10 GOLD CONC PP FR 8-6 LMS-1000

STAN-TONE HC PLUS 107749 PURPLE LSR MB STAN-TONE HC PLUS 107750 PURPLE LSR PP FR 8-6 LMS-1000

BLUE HC-159 RESILIENCE HC 8230 LIGHT GRAY PP FR 8-6 LMS-1000