Ever wonder how a vibrantly-colored snowboard retains its bold appearance in the face of ongoing exposure to the elements? Add resilience and lasting beauty to your products with various polymer additives and color formulations from Avient. The typical enthusiast is willing to invest extra money into customizing their kayaks with vibrant colors and added accessories.

Industri Kecil & Sederhana Simpang Ampat Penang 14120 Malaysia Avient Colorants MX S.A. de C.V. Strydom Park 329 2194 Randburg South Africa Avient Colorants Spain S.A. Development and manufacturing of Colorants products (including additive Masterbatch) No. 2 Nan Yun San Rd., Science City 510663 Guangzhou (Shanghai) Ltd.

Q1 2025 results Copyright © . 2025 7 Color, Additives & Inks – Q1 2025 performance Sales 515 520 Adj. Color, Additives & Inks END MARKETS REGIONS 34% 21% 15% 11% 8% Packaging Telecom 1%Energy 1% 34% US & Canada Latin America Europe, Middle East Construction 15Copyright © . Slide 12 Slide 13: Avient 2024 sales Slide 14: Color, Additives & Inks Slide 15: Specialty Engineered Materials Slide 16: Avient 2024 regional sales, by end market Slide 17: Raw material basket IR Deck - AVNT-2025.03.31 Non-Gaap Recs.pdf Attachment

ARTISAN™ PRE-COLORED THERMOPLASTICS NYLON (PA6) FORMULATIONS PROCESSING GUIDE 2 Artisan Pre-Colored Thermoplastics Artisan™ Pre-Colored Thermoplastics Artisan™ thermoplastics are vibrant, pre-colored high-gloss, scratch resistant engineered polymers formulated to replace paint for superior results. Can cause issues with color variation, surface defects, loss of properties and may affect the weatherability. Cut vent depths to 0.0007″–0.0015″ Draft Angle Maintain a minimum draft angle of 1° per side 4 Artisan Pre-Colored Thermoplastics Incomplete Fill Melt and/or mold too cold • Increase nozzle and barrel temperatures • Check thermocouples and heater bands Shot size • Increase shot size • Adjust transfer position to 98% full • Increase cushion Mold design • Enlarge or widen vents and increase number of vents • Check that vents are unplugged • Check that gates are unplugged • Enlarge gates and/or runners • Perform short shots to determine fill pattern and verify proper vent location • Increase wall thickness to move gas trap to parting line Brittleness Degraded/overheated material • Decrease melt temperature • Decrease back pressure • Use smaller barrel Gate location and/or size • Relocate gate to non-stress area • Increase gate size to allow higher flow rate and lower molded-in stress Wet material • Check moisture.

Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Sales: Color, Additives and Inks $ 624.4 $ 226.8 $ 1,233.7 $ 483.3 Specialty Engineered Materials 240.6 158.8 457.1 344.1 Distribution 404.4 238.8 767.1 528.3 Corporate and eliminations (34.2) (15.3) (60.4) (35.1) Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 Gross margin: Color, Additives and Inks $ 193.4 $ 75.7 $ 390.9 $ 165.1 Specialty Engineered Materials 69.6 42.5 134.3 95.1 Distribution 40.1 27.2 79.4 60.8 Corporate and eliminations (14.4) 4.3 (13.5) 0.2 Gross margin $ 288.7 $ 149.7 $ 591.1 $ 321.2 Selling and administrative expense: Color, Additives and Inks $ 107.1 $ 43.4 $ 215.8 $ 92.3 Specialty Engineered Materials 32.3 25.5 62.8 55.8 Distribution 16.4 12.6 31.7 26.8 Corporate and eliminations 24.8 30.2 52.3 55.5 Selling and administrative expense $ 180.6 $ 111.7 $ 362.6 $ 230.4 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 72.8 Specialty Engineered Materials 37.3 17.0 71.5 39.3 Distribution 23.7 14.6 47.7 34.0 Corporate and eliminations (39.2) (25.9) (65.8) (55.3) Operating income $ 108.1 $ 38.0 $ 228.5 $ 90.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 94.4 Specialty Engineered Materials 45.4 24.6 87.4 54.4 Distribution 23.9 14.7 48.1 34.2 Corporate and eliminations (39.0) (23.3) (63.8) (51.4) Other income, net 1.2 9.5 $ 2.7 $ 11.1 EBITDA $ 143.1 $ 68.4 $ 302.1 $ 142.7 12 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance. Reconciliation of Pro Forma Adjusted Earnings per Share: Three Months Ended June 30, 2020 Six Months Ended June 30, 2020 Year Ended December 31, 2020 Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 56.1 $ 132.0 Special items, after tax 2.6 11.2 24.8 Adjusted net income from continuing operations excluding special items 25.6 67.3 156.8 Clariant MB pro forma adjustments to net income from continuing operations(2) 12.9 20.7 20.7 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 38.5 $ 88.0 $ 177.5 Weighted average diluted shares 91.8 89.4 90.6 Pro forma impact to diluted shares from January 2020 equity offering(2) — 2.9 1.5 Pro forma weighted average diluted shares 91.8 92.3 92.1 Adjusted EPS - excluding special items pro forma for Clariant MB acquisition $ 0.42 $ 0.95 $ 1.93 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 14 Three Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(2) Pro Forma Adjusted Avient Sales $ 609.1 $ — $ 609.1 $ 261.1 $ 870.2 Operating income $ 38.0 $ 9.0 $ 47.0 $ 22.0 $ 69.0 Interest expense, net (16.2) — (16.2) (5.3) (21.5) Other income, net 9.5 (6.6) 2.9 — 2.9 Income taxes (7.9) 0.2 (7.7) (3.8) (11.5) Net income attributable to noncontrolling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 2.6 $ 25.6 $ 12.9 $ 38.5 Weighted average diluted shares 91.8 Pro forma adjusted EPS $ 0.42 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition Six Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(2) Pro Forma Adjusted Avient Sales $ 1,320.6 $ — $ 1,320.6 $ 540.5 $ 1,861.1 Operating income $ 90.8 $ 18.7 $ 109.5 $ 45.0 $ 154.5 Interest expense, net (25.6) — (25.6) (18.1) (43.7) Other income, net 11.1 (6.7) 4.4 — 4.4 Income taxes (19.8) (0.8) (20.6) (6.2) (26.8) Net income attributable to noncontrolling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 56.1 $ 11.2 $ 67.3 $ 20.7 $ 88.0 Weighted average diluted shares 89.4 Impact to diluted shares from January 2020 equity offering 2.9 Pro forma weighted average diluted shares 92.3 Pro forma adjusted EPS $ 0.95 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 15 Reconciliation of EBITDA by Segment Three Months Ended June 30, Six Months Ended June 30 2021 2020 2021 2020 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 72.8 Specialty Engineered Materials 37.3 17.0 71.5 39.3 Distribution 23.7 14.6 47.7 34.0 Corporate and eliminations (39.2) (25.9) (65.8) (55.3) Operating income $ 108.1 $ 38.0 $ 228.5 $ 90.8 Items below OI in Corporate: Other income, net $ 1.2 $ 9.5 $ 2.7 $ 11.1 Depreciation & amortization: Color, Additives and Inks $ 25.3 $ 10.6 $ 52.6 $ 21.6 Specialty Engineered Materials 8.1 7.6 15.9 15.1 Distribution 0.2 0.1 0.4 0.2 Corporate and eliminations 0.2 2.6 2.0 3.9 Depreciation & Amortization $ 33.8 $ 20.9 $ 70.9 $ 40.8 EBITDA: Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 94.4 Specialty Engineered Materials 45.4 24.6 87.4 54.4 Distribution 23.9 14.7 48.1 34.2 Corporate and eliminations (39.0) (23.3) (63.8) (51.4) EBITDA $ 143.1 $ 68.4 $ 302.1 $ 142.7 EBITDA as a % of Sales: Color, Additives and Inks 17.9 % 18.9 % 18.5 % 19.5 % Specialty Engineered Materials 18.9 % 15.5 % 19.1 % 15.8 % Distribution 5.9 % 6.2 % 6.3 % 6.5 % 16 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Sales: Color, Additives and Inks $ 624.4 $ 226.8 $ 1,233.7 $ 483.3 Clariant MB pro forma adjustments(2) — 261.1 — 540.5 Pro forma sales $ 624.4 $ 487.9 $ 1,233.7 $ 1,023.8 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 72.8 Clariant MB pro forma adjustments(2) — 22.0 — 45.0 Pro forma operating income $ 86.3 $ 54.3 $ 175.1 $ 117.8 Depreciation & amortization: Color, Additives and Inks $ 25.3 $ 10.6 $ 52.6 $ 21.6 Clariant MB pro forma adjustments(2) — 15.0 — 30.1 Pro forma depreciation & amortization $ 25.3 $ 25.6 $ 52.6 $ 51.7 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA): Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 94.4 Clariant MB pro forma adjustments(2) — 37.0 — 75.1 Pro forma EBITDA $ 111.6 $ 79.9 $ 227.7 $ 169.5 Pro forma EBITDA as a % of Sales 17.9 % 16.4 % 18.5 % 16.6 % (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition Three Months Ended June 30, Six Months Ended June 30, Reconciliation to Pro Forma Adjusted EBITDA: 2021 2020 2021 2020 Net income from continuing operations – GAAP $ 69.4 $ 23.4 $ 149.1 $ 56.5 Income tax expense 20.4 7.9 43.3 19.8 Interest expense 19.5 16.2 38.8 25.6 Depreciation and amortization from continuing operations 33.8 20.9 70.9 40.8 EBITDA $ 143.1 $ 68.4 $ 302.1 $ 142.7 Special items, before tax 14.2 2.4 16.6 12.0 Interest expense included in special items — (0.5) — (0.5) Depreciation and amortization included in special items 1.4 (1.2) 0.8 (1.2) Adjusted EBITDA $ 158.7 $ 69.1 $ 319.5 $ 153.0 Clariant MB pro forma adjustments(2) — 37.0 — 75.1 Pro forma adjusted EBITDA $ 158.7 $ 106.1 $ 319.5 $ 228.1

Pro Forma Financial Information Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, Avient references “pro forma” financial metrics, which include the business results of Clariant Color for periods prior to the Acquisition Date. WHAT WE DO: MATERIAL SCIENCE 5 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 S E CO N D Q UART E R 2022 RE S U LT S $122 $134 $0.87 $0.98 Q2 2022 PERFORMANCE (TOTAL COMPANY) 8 Sales Adjusted Operating Income $1,235 $1,302 + 5% Adjusted EPS + 10% + 13% (in millions) (in millions) (+ 10% excluding FX) (+ 16% excluding FX) (+ 20% excluding FX) Q2 2022 SEGMENT PERFORMANCE 9 CAI $624 $649 SEM Distribution $86 $94 + 4% + 9% $404 $443 $24 $27 + 10% + 13% $241 $244 $37 $37 + 1% Flat (+ 10% excluding FX) (+ 16% excluding FX) (+ 6% excluding FX) (+ 3% excluding FX) Q2 2021 $1,235 $122 Sustainable Solutions 17 7% 7 Healthcare 23 14% 5 Composites (ex Outdoor High Performance) 10 20% 4 Growth in Asia / LATAM 5 3% 1 Other 69 11% 5 Sub-total $1,359 10% $144 Outdoor High Performance Impact (9) (5) Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (48) (7) Q2 2022 $1,302 5% $134 Q2 2022 SALES AND OPERATING INCOME (TOTAL COMPANY) 10 Sales Growth Rate Operating Income$ millions EBITDA Q2 EBITDA BRIDGE 11 Price increases more than offsets raw material and supply chain impacts Q2 2021 $ 159 Demand (29) $ millions CAI: Price / Mix 87 Inflation (58) SEM: Price / Mix 36 Inflation (24) Distribution: Price / Mix 45 Inflation (41) Net Price Benefit 45 Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (7) Q2 2022 $ 170 China Lockdowns / Russia Impact $ (14) Outdoor High Performance (5) Transportation (5) 12 Q2 '21 Adjusted EPS 0.87$ Color, Additives and Inks 0.11 Specialty Engineered Materials 0.01 Distribution 0.03 Corporate Costs 0.01 F/X (0.05) Segment OI 0.11$ Interest Expense 0.03 Tax Rate (0.03) Q2 '22 Adjusted EPS 0.98$ Q2 EPS BRIDGE Key Updates • Provided progress on 2030 Sustainability Goals • Emphasized commitment to U.N.

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.

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.

$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

Further, the team developed a custom colorant that matched the automaker’s interior color specs, and then developed the final product so that the armrest could be molded in color.