OnColor™ RC Environmental Black Color Concentrate OnColor™ RC Environmental Black color concentrate is derived from end-of-life tires, making it sustainable alternative to concentrates using virgin carbon black. The use of OnColor RC Environmental Black helps reduce environmental impact compared to color concentrates formulated with traditional carbon black.

Cesa™ Clean masterbatch additives are formulated to effectively clean process tooling and machinery during material or color changeovers. Cesa™ Clean Additives WHEN TO USE CESA CLEAN As a best practice, Cesa Clean adds value when used for: • Color changeovers • Material and formulation changes • Shutdown or startup • Machine maintenance WHY USE CESA CLEAN Some of the ways you can benefit from consistently using Cesa Clean: • Improve production uptime with faster color changeovers • Reduce wasted melt puddle material • Reduce resin use during purging • Non-abrasive and safe to use on precision equipment PRODUCT BULLETIN Cesa Clean solutions are available for use in a variety of processing conditions and operating temperatures.

$3.2B $526M 80+ 100+ 2011 63% 2024 sales by business segment Specialty Engineered Materials SEM Color, Additives & Inks CAI 2024 sales by end market 41% 35% 18% 2024 sales by region US, Canada LATAM EMEA PACKAGING 23% CONSUMER INDUSTRIAL TRANSPORTATION BUILDING & CONSTRUCTION HEALTHCARE DEFENSE ENERGY TELECOM 3% 2024 SALES 2024 ADJ. Color, Additives & Inks END MARKETS REGIONS 34% 21% 11% Packaging Telecom 1%Energy 1% 34% US & Canada Latin America Europe, Middle East Construction 25Copyright © . Three Months Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 48.3 $ 0.52 $ 27.8 $ 0.30 Special items, after-tax (18.0) (0.20) 5.4 0.06 Amortization expense, after-tax 14.8 0.17 15.0 0.16 Adjusted net income / EPS $ 45.1 $ 0.49 $ 48.2 $ 0.52 Year Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 169.5 $ 1.84 $ 75.8 $ 0.83 Special items, after-tax 15.9 0.17 79.3 0.86 Amortization expense, after-tax 59.5 0.65 61.5 0.67 Adjusted net income / EPS $ 244.9 $ 2.66 $ 216.6 $ 2.36 Three Months Ended Year Ended Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 2024 2023 Net income from continuing operations – GAAP $ 48.5 $ 27.6 $ 170.7 $ 76.3 Income tax expense (benefit) 14.8 (7.0) 54.1 11.0 Interest expense 25.5 26.8 105.6 115.3 Depreciation and amortization from continuing operations 45.4 44.2 179.7 188.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 Adjusted EBITDA as a percent of sales 14.7 % 15.8 % 16.2 % 16.0 % Three Months Ended Year Ended 2024 2023 2024 2023 Sales: Color, Additives and Inks $ 467.7 $ 459.4 $ 2,046.5 $ 2,007.4 Specialty Engineered Materials 279.7 259.8 1,196.8 1,138.2 Corporate (0.9) (0.2) (2.9) (2.8) Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Gross margin: Color, Additives and Inks $ 152.6 $ 148.3 $ 681.1 $ 631.2 Specialty Engineered Materials 84.2 78.1 374.9 341.8 Corporate 22.7 (17.5) 0.7 (80.5) Gross margin $ 259.5 $ 208.9 $ 1,056.7 $ 892.5 Selling and administrative expense: Color, Additives and Inks $ 92.8 $ 86.5 $ 384.9 $ 371.3 Specialty Engineered Materials 49.6 48.7 207.7 199.3 Corporate 31.5 30.6 134.8 125.1 Selling and administrative expense $ 173.9 $ 165.8 $ 727.4 $ 695.7 Operating income: Color, Additives and Inks $ 59.8 $ 61.8 $ 296.2 $ 259.9 Specialty Engineered Materials 34.6 29.4 167.2 142.5 Corporate (8.8) (48.1) (134.1) (205.6) Operating income $ 85.6 $ 43.1 $ 329.3 $ 196.8 Depreciation and amortization: Color, Additives and Inks $ 21.9 $ 22.2 $ 87.5 $ 98.3 Specialty Engineered Materials 21.0 19.8 82.1 81.5 Corporate 2.5 2.2 10.1 9.0 Depreciation and amortization $ 45.4 $ 44.2 $ 179.7 $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 81.7 $ 84.0 $ 383.7 $ 358.2 Specialty Engineered Materials 55.6 49.2 249.3 224.0 Corporate (6.3) (45.9) (124.0) (196.6) Other income, net 3.2 4.3 1.1 5.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 2 Year Ended December 31, Adjusted Free Cash Flow Calculation 2024 2023 Cash provided by operating activities $ 256.8 $ 201.6 Taxes paid on gain on sale of business — 104.1 One-time payout associated with deferred compensation plans 20.8 — Adjusted cash provided by operating activities $ 277.6 $ 305.7 Capital expenditures (121.9) (119.4) Adjusted free cash flow $ 155.7 $ 186.3 Three Months Ended March 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 49.4 $ 0.54 Special items, after-tax 5.5 0.06 Amortization expense, after-tax 14.9 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 3 AVNT February Investor Presentation_2_25.pdf Avient Investor Presentation - February 2025_w_Non-GAAP.pdf Avient February 2025 Investor Presentation_w_non-GAAP.pdf Non-GAAP- IR Deck - AVNT-2024.12.31 2.06.25 12PM.pdf Attachment

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks

PolyOne Acquisition of Clariant Color Masterbatch – 12/19/2019 Investor Day - May 2012 - Global Color, Additives, and Inks