ACTIVE INGREDIENTS RESISTANCE RATING Clorox® Disinfecting Wipes 5813-79 Quaternary ammonium +++++ +++++ +++++ ++ +++ ++++ Formula 409® Heavy Duty Degreaser N/A Lauramine oxide, ethanolamine +++++ +++++ +++++ + ++ +++ Lysol® All-Purpose Cleaner 777-66 Quaternary ammonium +++++ +++++ +++++ + + ++ $$$ $$$ $$$$ $ $$$ $ MATERIAL COMPARISON WITH COMMON CONSUMER DISINFECTANTS FR P C/ AB S FR P C/ PE T FR P C/ PB T Ed ge te k™ E T8 90 0 CR Ed ge te k™ E T8 90 0 H I C R Ed ge te k™ E T8 92 0 FR C RCRITERIA FOR RESISTANCE RATING + strength and elongation at yield retention between 90-110% + strength and elongation at yield retention between 75-125% + no statistically significant reduction in elongation at break (p < 0.05) + visual observation score of 4 or better (minor/no crazing, no cracks) + samples survived disinfectant exposure in strain jig Lysol® is a trademark of Reckitt Benckiser LLC Formula 409® is a trademark of The Clorox Company Clorox® is a trademark of The Clorox Company An independent, A2LA-accredited lab tested the following polymers with various disinfectants to help customers choose the material suitable for their specific application requirements.

50400WOA WILFLEX OASIS THICKENER 50800WOA WILFLEX OASIS CROSSLINKER

41011WPC WILFLEX OASIS EXTRA WHITE PC 41087WPC WILFLEX OASIS BRIGHT YELLOW PC

XDW13301561B WILFLEX ONE FOIL RESIST XDW13301563B WILFLEX ONE LIQUID SILVER

XES133-02138A WILFLEX ONE PARTICLE BASE XES13302139A WILFLEX ONE CURABLE REDUCE

Inks, dyes and integrated polymer-based solutions are examples. Inks and Dyes For instance a label may contain both a 3D bar code, a hologram and a covert ink or polymer-based solution.

All Rights Reserved 2025 7 Color, Additives & Inks – Q2 2025 performance Sales 542 539 Q2 2024 Q2 2025 Adj. EBITDA 108 113 Q2 2024 Q2 2025 • Sales decline driven by weakness in consumer, transportation, and building & construction partially offset by growth in healthcare • Adjusted EBITDA margin expansion of 100 bps driven by favorable mix, cost reduction actions and productivity initiatives Adj. All Rights Reserved 2025 19 Reconciliation of Non-GAAP financial measures Reconciliation to EBITDA and Adjusted EBITDA Three months ended June 30, 2025 2024 $ Millions $ Millions Sales Color, Additives and Inks 538.6 542.0 Specialty Engineered Materials 329.7 308.1 Corporate (1.8) (0.4) Sales 866.5 849.7 Operating income Color, Additives and Inks 90.3 86.1 Specialty Engineered Materials 40.2 42.8 Corporate (34.4) (56.4) Operating income 96.1 72.5 Depreciation and amortization Color, Additives and Inks 22.4 21.8 Specialty Engineered Materials 22.4 20.8 Corporate 1.8 2.3 Depreciation and amortization 46.6 44.9 EBITDA Earnings before interest, taxes, depreciation and amortization Color, Additives and Inks 112.7 107.9 Specialty Engineered Materials 62.6 63.6 Corporate (32.6) (54.1) Other expense, net (0.5) (0.9) EBITDA 142.2 116.5 Special items, before tax 7.3 28.1 Interest expense included in special items (0.3) (1.0) Depreciation and amortization included in special items (0.3) (0.3) Adjusted EBITDA 148.9 143.3 Adjusted EBITDA as a percent of sales Color, Additives and Inks 20.9% 19.9% Specialty Engineered Materials 19.0% 20.6% PAGE 2 OF 4 Copyright © .

Color, Additives and Inks segment.  will serve as President of Color, Additives and Inks, for the Senior Vice President, Chief Commercial Officer, will serve as President of Color, Additives and Inks, for the

GUIDANCE (TOTAL COMPANY) 8 15.4% 15.9% Guidance Actual Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE (TOTAL COMPANY) 9 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs. expectations: US & Canada LATAM EMEA Asia • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2023 SEQUENTIAL SALES BY REGION Q 2 2 0 2 3 v s . Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 24 EV / 2023E EBITDA Historic Multiple 6.5 8.3 10.3 14.4 13.6 13.6 12.4 9.0 20.2 18.2 11.5 10.6 9.7 9.6 8.7 8.3 A vi en t (2 01 1) A vi en t (2 01 8) A vi en t (2 02 3) R P M P P G K W R A V Y F U L E C L H X L F M C A S H S C L C E H U N E M N Avient Specialty Formulators Other Specialty / Chemical Companies SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 26 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 B ILL ION US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 27 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 B ILL ION US & Canada 52% EMEA 35% Asia 13% 28 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2022 PROFORMA AVIENT REGIONAL SALES Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 29 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.

Color, Additives and Inks Color, Additives and Inks Color, Additives and Inks