Q1 2023 (TOTAL COMPANY) $846 $829 Q1 23 Q1 24 $134 $143 Q1 23 Q1 24 17.3% Sales Adjusted EBITDA (in millions) $0.63 $0.76 Q1 23 Q1 24 Adjusted EPS (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 9 - 2% 15.8% +150 bps * * * Adjusted EBITDA Margin % Q1 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $537 $515 Q1 23 Q1 24 $91 $97 Q1 23 Q1 24 18.8% Sales Adjusted EBITDA (in millions) (in millions) + 7% Sales Adjusted EBITDA 10 - 4% 17.0% +180 bps * * * Adjusted EBITDA Margin % • Year over year demand continues to improve for the segment but slowly due to continued weakness in Europe • Raw material deflation & cost reduction actions primary drivers of adjusted EBITDA growth and margin expansion of +180 bps vs Q1 2023 Q1 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $310 $314 Q1 23 Q1 24 $64 $73 Q1 23 Q1 24 23.2% Sales Adjusted EBITDA (in millions) (in millions) + 14% Sales Adjusted EBITDA 11 + 1% 20.8% +240 bps * * * Adjusted EBITDA Margin % • Sales growth in defense end market offset by weaker demand in telecommunications end market • Raw material deflation and favorable mix impact from defense sales primary drivers of adjusted EBITDA growth and margin expansion of +240 bps vs Q1 2023 Q1 EBITDA BRIDGE (TOTAL COMPANY) 12 $ millions CAI: Price / Mix (1) Deflation 16 SEM: Price / Mix 4 Deflation 7 Net Price Benefit 26 Wage/Other Inflation (9) FX (2) Q1 2024 $143 Adjusted EBITDA Q1 2023 $ 134 Demand (6) • Positive net price benefit: o Favorable raw material deflation in both segments • Wage and other inflation more than offset cost reductions/synergies 2024 G U IDA N CE FY 2024 GUIDANCE Original Revised Adjusted EBITDA $505 to $535 million $510 to $535 million Adjusted EPS $2.40 to $2.65 $2.50 to $2.65 Interest Expense $105 to $110 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 14 Q2 2024: Adjusted EPS of $0.71 CE O “TO P O F M IN D ” FO CU S ARE A S AREAS OF FOCUS 16 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P EN D IX 19 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 21 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 22 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION US & Canada 52% EMEA 35% Asia 13% 23 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 24 BY END MARKET 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.

Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 2022 SUSTAINABILITY REPORT 15 Avient Confidential 16 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 16 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLDER INFLUENCE DRIVES DEMAND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 17 AP P EN D IX 20 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 22 3 2 3 3 4 4 3 3 4 5 5 7 8 8 A vi en t K W R P P G F U L R P M A V Y F M C H U N C E H X L E C L A S H E M N S C L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of July 21, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

When applying for a position, you may provide personal information, including: • Identifiers and Contact Information such as your name, date of birth, home address, personal email, phone number, government Identifiers (such as your driving license and/or national identification number); • Log In Details, including your email address, username and password when you sign in to submit your application; https://avient.referrals.selectminds.com/ https://www.avient.com/company/policies-and-governance/avient-corporation-privacy-statement mailto:HR@polyone.com • Protected Classifications, to the extent permitted by applicable law, such as your gender, race and ethnic origin; • Professional or Employment-Related Information, such as your resume or CV, employment background and history, job qualifications, the position for which you would like to submit an application, employment references, your current salary, bonuses, salary expectation or any other information you elect to provide, including information relating to any previous applications you may have submitted with us or any previous work experience with Avient, professional affiliations or memberships, and preferred start date; • Educational Information, such as educational background, your school transcripts, educational and training history, your English proficiency which may be required for certain positions, language and special competencies, certification information; and • Other personal information you choose to submit to us in connection with your application, such as contact information of references, information disclosed in an interview, or your personal situation In addition, as a part of the application process, you may be asked questions about your work authorization, and your willingness to submit to a background or criminal record check and/or medical examination as permitted by applicable law.

Sharpening focus on cost control & driving productivity in SG&A and in our plants 4.

Sharpening focus on cost control & driving productivity in SG&A and in our plants 4.

Sharpening focus on cost control & driving productivity in SG&A and in our plants 4.

From material selection to technical support, we’re here to help you drive your product from concept to reality.

Our technology goals are aligned with our sustainability goals to drive sustainable innovation. C4.3c (C4.3c) What methods do you use to drive investment in emissions reduction activities? Overarching goal of this objective is to identify savings potential through the calculation and analysis of energy consumption which drives optimized use of equipment and systems.

Jellison is able to use his experience in serving as an executive at a respected Medtech company to guide our Board in driving further specialization. We use the four performance periods and relative weightings listed below to drive annual performance as well as cumulative performance. The four, equally weighted performance periods listed below were used in order to drive annual as well as cumulative performance.

Our annual United Way campaign has been an important financial driving force as well, primarily in North America. We use the four performance periods and relative weightings listed below to drive annual performance as well as cumulative performance. The four, equally weighted performance periods listed below were used in order to drive annual as well as cumulative performance.