2 Suborno de funcionários públicos 2 Suborno comercial 3 Pagamentos de facilitação e propinas 3 Trabalhar com agentes, distribuidores e outros terceiros 3 Due diligence e processo de aprovação 3 Sinais de alerta 4 Exigências de manutenção de registros contábeis 4 Denúncias de possíveis violações 4 Linha direta de ética da Avient 4 Proteção contra retaliação 5 Referência rápida: ABAC - O QUE FAZER E O QUE NÃO FAZER 6 1 Nossa política global antissuborno e anticorrupção A Avient proíbe estritamente fraudes, subornos e outras práticas empresariais corruptas em todas as operações da empresa em qualquer lugar do mundo. Aplica-se essa proibição se a oferta ou o pagamento for feito diretamente ou por outra pessoa • Não faça registros enganosos, incompletos ou falsos nos livros e registros contábeis da Avient • Não ignore os sinais de alerta ao lidar com terceiros América do Norte Sede global Avon Lake, Estados Unidos 33587 Walker Road Avon Lake, OH, Estados Unidos 44012 Ligação gratuita: +1 (866) 765 9663 Telefone: +1 (440) 930 1000 Fax: +1 (440) 930 3064 Ásia-Pacífico Sede regional Xangai, China 2F, Block C 200 Jinsu Road Pudong, 201206 Xangai, China Telefone: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 América do Sul Sede regional São Paulo, Brasil Av. Francisco Nakasato, 1700 13295-000 Itupeva São Paulo, Brasil Telefone: +55 (11) 4593 9200 Europa Sede regional Pommerloch, Luxemburgo 19 Route de Bastogne Pommerloch, Luxemburgo, L-9638 Telefone: +352 269 050 35 Fax: +352 269 050 45   www.avient.com http://www.avient.com

January 20, 2025 May 14, 2025 May 14, 2025

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Avient Colorants Indonesia Gatot Subroto Km. 4, Jl. Müller, CEO SQS 66 60 _2  / J un e 20 19  / V er si on 2 .0 Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland A.

We are Avient. 4 BETTER TOGETHER: POLYONE AND CLARIANT MASTERBATCH Key Financial Data (1) 2021E Sales $4.1 billion 2021E EBITDA $510 million 2021E Free Cash Flow $250 million 87% of EBITDA from specialty applications (1) As of February 9, 2021 webcast Innovation is the lifeblood of a specialty company. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 24 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 3 2 2 3 3 3 4 3 3 4 4 4 5 5 5 5 7 7 8 23 t (E xc l. In 2021 we expect substantial earnings growth and strong cash flow generation as we emerge from the COVID-19 pandemic.

For load classes outside of those listed, please contact Avient. 4 Horizontal load, 2ft from the pole tip. Copyright © 2025, Avient Corporation.

April 8, 2025 May 14, 2025 May 14, 2025

FX) 2022 GROWTH PROJECTIONS 19 $3.05 $3.50 2021 2022E Full Year – Adjusted EPS + 15% (+ 17% excluding FX) $0.89 $0.95 2021 2022E Q1 – Adjusted EPS + 7% (+ 10% excluding FX) ($ millions) Q1 Full Year Q1 Full Year 2021 - Actual 1,162$ 4,819$ 123$ 429$ Sustainable Solutions 27 110 12 44 Healthcare 15 66 4 13 Composites (excl.Outdoor High Performance) 11 29 5 13 Outdoor High Performance Applications (7) (20) (4) (10) Growth in Asia / LATAM 10 51 3 11 Other 57 115 9 12 Sub-total 1,275$ 5,170$ 152$ 512$ Wage Inflation and Overtime (12) (18) Other Supply Chain Costs (4) (7) FX Impact (25) (70) (4) (8) Synergies 4 15 Travel, Other Employee Costs (1) (4) 2022 - Estimated 1,250$ 5,100$ 135$ 490$ Adjusted 2022 SALES AND OI – Q1 AND FULL YEAR 20 ($ millions) 2021 2022E Cash Flow from Operating Activities 234$ 385$ Less: Run-Rate CapEx (86) (90) CapEx for Clariant Integration (15) (20) CapEx for IT System Upgrade - (25) Total CapEx (101) (135) Free Cash Flow 133$ 250$ Adjusted EBITDA 581$ 635$ Net Debt / Adjusted EBITDA 2.2x 1.8x 21 CASH FLOW / LEVERAGE 22 • Record results – highest level of sales ($4.8B) and earnings ($3.05 adjusted EPS) in company history • Successful Clariant Color integration – net debt to adjusted EBITDA reduced to 2.2x, one-year ahead of schedule • Recognized as one of America’s Most Responsible Companies by Newsweek • Earned 3rd consecutive Great Place to Work certification 2021 HIGHLIGHTS 23 • 15% adjusted EPS growth to $3.50, led by growth in sustainable solutions and increased synergy realization • Continued strong synergy capture from the Clariant Color integration: $75M anticipated run-rate synergies by the end of 2022 • Adjusted EBITDA of $635M represents 9% growth above 2021 – 11% excluding the impact of foreign currencies • Deleveraged to 1.8x net debt to adjusted EBITDA by the end of 2022 2022 SUMMARY PEER COMPARISONS 25 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. In 2021, we delivered substantial earnings growth and strong cash flow generation as we emerged from the COVID-19 pandemic. 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 31 • Significant raw material price inflation and tight inventory continued in Q4 2021 o For the full year, the average cost of hydrocarbon based materials was up 50% in 2021 o For the full year, the average cost of non- hydrocarbon based materials was up 12% in 2021 • Additionally, we continued to experience other supply chain challenges during Q4 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 9% 2021 SEGMENT, END MARKET AND GEOGRAPHY 33 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% 21% Building & 9% 1% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILL ION 32% 40% 21% Latin America END MARKET REGION 34 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% 20% REGION 35 DI S TR IBU T I ON 26% 23% 20% Building and 80% 3% Latin America END MARKET REGION K E Y S U P P L I ER S 2021 REVENUE | $1 .6 B ILL ION 36 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) 37 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.

May 27, 2025 Apr 15, 2025 Apr 08, 2025

Certificate No: QMS10207 Certification Date: 13 FEB 1991 Effective Date: 02 MAY 2025 Expiration Date 04 MAY 2028 Revision Date: 02 MAY 2025 Dominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc.