STRENGTH & FLEX Excellent Dimensional Stability, High Stiffness, Impact Resistance SOLUTION: Short & Long Fiber Formulations, Continuous Fiber Composite Tapes & Laminates DURABILITY Density, Stiffness, Strength SOLUTION: Short & Long Fiber Formulations SURFACE PROTECTION Performance Enhancements, Chemical Resistance SOLUTION: Scratch & Mar Resistance, UV Stable Additives TACTILE EXPERIENCE Soft Touch, Slip Resistance SOLUTION: Thermoplastic METAL REPLACEMENT High Stiffness-to-Weight Ratio, Lightweighting, Buoyancy SOLUTION: Continuous Filament Winding Technology EXTREME PERFORMANCE Waterproof Seals & Closures SOLUTION: Thermoplastic DYNAMIC COMFORT Durability, Customization, Shock Absorption SOLUTION: Thermoplastic Elastomers COLOR RESILIENCE Excellent Adhesion to Substrates, Weatherability SOLUTION: Plastisol Textile Inks FUNCTIONALITY High Stiffness, Structural Integrity, Metal Replacement SOLUTION: Short & Long Fiber Formulations, Continuous Fiber Composite Tapes & Laminates AESTHETIC APPEAL Custom Colors, Patterns & Tones SOLUTION: Custom Polymer Colorants, Specialty Additives RESILIENCE Weatherability, Longevity SOLUTION: Specialty Engineered Polymer Formulations For more on material solutions for outdoor equipment, visit avient.com/outdoor. https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-scratch-mar-resistance-additives https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-continuous-filament-wound-tubes-poles https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-continuous-filament-wound-tubes-poles https://www.avient.com/products/screen-printing-inks https://www.avient.com/products/screen-printing-inks https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations https://www.avient.com/products/polymer-colorants https://www.avient.com/products/polymer-colorants https://www.avient.com/products/polymer-additives https://www.avient.com/outdoor https://www.avient.com/outdoor

NORBERT MERKLEIN Vice President and General Manager EMEA of Color, Additives & Inks Norbert Merklein serves as Vice President and General Manager for the Europe, Middle East, and Africa (EMEA) region of Color, Additives & Inks at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world.

Three Months Ended December 31, Year Ended December 31, 2021 2020 2021 2020 Sales: Color, Additives and Inks $ 581.3 $ 525.8 $ 2,401.6 $ 1,502.9 Specialty Engineered Materials 228.2 190.6 918.9 708.8 Distribution 425.0 305.1 1,630.9 1,110.3 Corporate and eliminations (33.0) (24.5) (132.6) (79.9) Sales $ 1,201.5 $ 997.0 $ 4,818.8 $ 3,242.1 Gross margin: Color, Additives and Inks $ 164.5 $ 164.3 $ 727.5 $ 484.4 Specialty Engineered Materials 60.0 59.1 257.4 207.6 Distribution 36.5 32.4 155.8 124.0 Corporate and eliminations (7.9) (2.9) (41.1) (31.7) Gross margin $ 253.1 $ 252.9 $ 1,099.6 $ 784.3 Selling and administrative expense: Color, Additives and Inks $ 103.3 $ 106.8 $ 424.4 $ 303.6 Specialty Engineered Materials 31.2 28.7 125.4 113.2 Distribution 14.8 14.4 62.6 54.5 Corporate and eliminations 29.8 38.0 106.0 123.7 Selling and administrative expense $ 179.1 $ 187.9 $ 718.4 $ 595.0 Operating income: Color, Additives and Inks $ 61.2 $ 57.5 $ 303.1 $ 180.8 Specialty Engineered Materials 28.8 30.4 132.0 94.4 Distribution 21.7 18.0 93.2 69.5 Corporate and eliminations (37.7) (40.9) (147.1) (155.4) Operating income $ 74.0 $ 65.0 $ 381.2 $ 189.3 13 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: Year Ended December 31, 2020 Net income from continuing operations attributable to Avient shareholders $ 132.0 Special items, after tax 24.8 Adjusted net income from continuing operations excluding special items 156.8 Clariant Color pro forma adjustments to net income from continuing operations(2) 20.7 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 177.5 Weighted average diluted shares 90.6 Pro forma impact to diluted shares from January 2020 equity offering(2) 1.5 Pro forma weighted average diluted shares 92.1 Adjusted EPS - excluding special items pro forma for Clariant Color acquisition $ 1.93 Year Ended December 31, 2020 Sales $ 3,242.1 Clariant Color pro forma adjustment to sales(2) 540.4 Pro forma sales $ 3,782.5 (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 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA) by Segment Three Months Ended December 31, Year Ended December 31, 2021 2020 2021 2020 Operating income: Color, Additives and Inks $ 61.2 $ 57.5 $ 303.1 $ 180.8 Specialty Engineered Materials 28.8 30.4 132.0 94.4 Distribution 21.7 18.0 93.2 69.5 Corporate and eliminations (37.7) (40.9) (147.1) (155.4) Operating income $ 74.0 $ 65.0 $ 381.2 $ 189.3 Items below OI in Corporate: Other income, net $ (5.4) $ 11.7 $ (1.3) $ 24.3 Depreciation & amortization: Color, Additives and Inks $ 26.4 $ 27.3 $ 105.7 $ 75.1 Specialty Engineered Materials 8.0 7.4 31.7 30.0 Distribution 0.2 0.3 0.8 0.7 Corporate and eliminations 3.6 2.8 7.7 9.3 Depreciation & Amortization $ 38.2 $ 37.8 $ 145.9 $ 115.1 EBITDA: Color, Additives and Inks $ 87.6 $ 84.8 $ 408.8 $ 255.9 Specialty Engineered Materials 36.8 37.8 163.7 124.4 Distribution 21.9 18.3 94.0 70.2 Corporate and eliminations (39.5) (26.4) (140.7) (121.8) EBITDA $ 106.8 $ 114.5 $ 525.8 $ 328.7 16 Reconciliation of Pro Forma Sales, Operating Income and EBITDA - Color, Additives and Inks Year Ended December 31, 2020 Sales: Color, Additives and Inks $ 1,502.9 Clariant Color pro forma adjustments(2) 540.4 Pro forma sales $ 2,043.3 Operating income: Color, Additives and Inks $ 180.8 Clariant Color pro forma adjustments(2) 45.0 Pro forma operating income $ 225.8 Depreciation & amortization: Color, Additives and Inks $ 75.1 Clariant Color pro forma adjustments(2) 30.1 Pro forma depreciation & amortization $ 105.2 EBITDA: Color, Additives and Inks $ 255.9 Clariant Color pro forma adjustments(2) 75.1 Pro forma EBITDA $ 331.0 (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 December 31, Year Ended December 31, Reconciliation to EBITDA and Pro Forma Adjusted EBITDA: 2021 2020 2021 2020 Net income from continuing operations – GAAP $ 28.9 $ 74.7 $ 230.6 $ 133.8 Income tax expense (benefit) 22.2 (17.3) 74.0 5.2 Interest expense 17.5 19.3 75.3 74.6 Depreciation and amortization from continuing operations 38.2 37.8 145.9 115.1 EBITDA $ 106.8 $ 114.5 $ 525.8 $ 328.7 Special items, before tax 20.6 4.2 57.1 66.2 Interest expense included in special items — — (10.1) Depreciation and amortization included in special items (1.6) (0.7) (1.7) (3.2) Adjusted EBITDA $ 125.8 $ 118.0 $ 581.2 $ 381.6 Clariant Color pro forma adjustments(2) — — — 75.1 Pro forma adjusted EBITDA $ 125.8 $ 118.0 $ 581.2 $ 456.7 (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 17 Net Debt Calculation December 31, 2021 Total long-term debt, net $ 1,850.3 Unamortized discount and debt issuance cost 14.4 Short-term and current portion of long term debt 8.6 Total debt $ 1,873.3 Cash (601.2) Net debt $ 1,272.1 NEWS RELEASE Attachment 1

Operating Income $3,783 $4,300 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,650 $308 $410 $308 $430 $1.93 $2.80 $1.93 $3.00 (1) (1)(1) (1)(1) (1) $442 $457 $580 $1.74 $1.93 $3.00 FULL YEAR 2019 – 2021 ORGANIC GROWTH 16 Sales Adjusted EBITDA $3,981 $3,783 $4,650 + 17% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1)(1) + 31% + 72% ($ in millions) 2021E Adjusted EBITDA 580$ Free Cash Flow 280$ Total Debt 1,860 Less: Cash (755) Net Debt 1,105$ 2021E Net Debt / Adjusted EBITDA 1.9x 17 BALANCE SHEET • Acquisition of Magna Colours completed on July 1 – expands sustainable solutions portfolio through water-based inks technology • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x Net Debt / Adjusted EBITDA (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SUSTAINABILITY FOR A BETTER TOMORROW • Revenue from sustainable solutions expected to grow 14% in 2021 as our innovation efforts and collaboration with customers continues to accelerate • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options 2016 2017 2018 2019 2020PF** Bio-polymers Reduced Energy Use Human Health & Safety Sustainable Infrastructure VOC Reduction Recycle Solutions Eco-Conscious Lightweighting Revenue From Sustainable Solutions* 2016-2020 $405M $455M *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 Masterbatch business $340M $550M $790M 19 Key Updates • Includes Clariant Masterbatch performance • Increases disclosures and ESG data • Provides performance updates on 2030 Sustainability Goals • Commits to operational carbon neutrality in 2050 and 100% renewable energy by 2050 (RE 100) • Announces Avient’s participation in U.N. APPENDIX Performance Additives Pigments TiO2 Dyestuffs 4%Polyethylene Nylon Polypropylene Other Raw Materials 29% Styrenic Block Copolymer ~1/3 hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 28 • In Q2 2021, several raw material markets experienced significant price inflation and tight inventory o Average cost of hydrocarbon based materials was up 45% year-over-year and 20% sequentially o Average cost of non-hydrocarbon based materials was up 10% year-over-year and 8% sequentially • Additionally, we experienced other supply chain challenges during Q2 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 2020 pro forma purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% 26% Latin America 2021 YTD SEGMENT, END MARKET AND GEOGRAPHY 30 GEOGRAPHY REVENUESEGMENT FINANCIALS 23% Building and 9% END MARKET REVENUE (1) Total company sales and EBITDA of $2,398M and $320M, respectively, include intercompany sales eliminations and corporate costs All charts reflect YTD financials through June 30 $1,234M $228M $457M $87M $767M $48M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $320M$2,398M 14% 34% 21% Building & 9% 2% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 YTD REVENUE | $1 .2 BILL ION 31% 42% 21% Latin America END MARKET REGION 31 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 28% Building & 2021 YTD REVENUE | $457 MILLION END MARKET 54% 26% REGION 32 DI S TR IBU T I ON 27% 22% Building and 81% Latin America END MARKET REGION K E Y S U P P L I ER S 2021 YTD REVENUE | $767 MILLION 33 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% 27%Healthcare Building & 2% Energy (16% of sales) 32% 13% 18% Building & (26% of sales) 34 25% 19% Building & US & Canada (50% of sales) 13% 40% 33% Building & LATAM (8% of sales) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) June 30, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Special Adjusted Operating income $ 108.1 $ 14.2 $ 122.3 Income from continuing operations before income taxes $ 89.8 $ 14.2 $ 104.0 Income tax expense - GAAP (20.4) — (20.4) Income tax impact of special items — (3.4) (3.4) Tax adjustments — 0.9 0.9 Net income attributable to noncontrolling interests (0.6) — (0.6) Net income from continuing operations attributable to Avient shareholders $ 68.8 $ 11.7 $ 80.5 Net income / EPS $ 0.74 $ 0.13 $ 0.87 Weighted-average diluted shares 92.4 92.4 92.4 September 30, 2020 Reconciliation to Condensed Consolidated Statements of Income GAAP Special Adjusted Operating income $ 33.5 $ 40.4 $ 73.9 Income from continuing operations before income taxes $ 5.3 $ 50.0 $ 55.3 Income tax expense - GAAP (2.7) — (2.7) Income tax impact of special items — (12.7) (12.7) Tax adjustments — 3.0 3.0 Net income attributable to noncontrolling interests (0.9) — (0.9) Net income from continuing operations attributable to Avient shareholders $ 1.7 $ 40.3 $ 42.0 Net income / EPS $ 0.02 $ 0.44 $ 0.46 Weighted-average diluted shares 91.9 91.9 91.9 Three Months Ended Year Ended December 31, Reconciliation to Pro Forma Adjusted EBITDA 2021 March 31, 2021 June 30, 2020 2020 2019 Net income from continuing operations – GAAP $ 69.4 $ 79.7 $ 23.4 $ 133.8 $ 75.7 Income tax expense 20.4 22.9 7.9 5.2 33.7 Interest expense 19.5 19.3 16.2 74.6 59.5 Depreciation and amortization from continuing operations 33.8 37.1 20.9 115.0 78.1 EBITDA $ 143.1 $ 159.0 $ 68.4 $ 328.6 $ 247.0 Special items, before tax 14.2 2.4 2.4 66.2 61.7 Interest expense included in special items — — (0.5) (10.1) — Depreciation and amortization included in special items 1.4 (0.5) (1.2) (3.2) — Adjusted EBITDA $ 158.7 $ 160.9 $ 69.1 $ 381.6 $ 308.7 Clariant MB pro forma adjustments(1) — — 37.0 75.1 133.2 Pro forma adjusted EBITDA $ 158.7 $ 160.9 $ 106.1 $ 456.7 $ 441.9 (1) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 1 Reconciliation of EBITDA by Segment Six Months Ended December 31, 2021 2020 2021 2020 2019 2018 Sales: Color, Additives and Inks $ 624.4 $ 226.8 $ 1,233.7 $ 483.3 $ 1,502.9 $ 1,003.8 Specialty Engineered Materials 240.6 158.8 457.1 344.1 708.8 745.7 Distribution 404.4 238.8 767.1 528.3 1,110.3 1,192.2 Corporate and eliminations (34.2) (15.3) (60.4) (35.1) (79.9) (79.0) Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 $ 3,242.1 $ 2,862.7 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 37.3 17.0 71.5 94.4 83.7 72.3 Distribution 23.7 14.6 47.7 69.5 75.4 71.5 Corporate and eliminations (39.2) (25.9) (65.8) (155.4) (149.7) (123.7) Operating income $ 108.1 $ 38.0 $ 228.5 $ 189.3 $ 156.8 $ 178.6 Items below OI in Corporate: Other income, net $ 1.2 $ 9.5 $ 2.7 $ 24.3 $ 12.1 $ (12.9) Depreciation & amortization: Color, Additives and Inks $ 25.3 $ 10.6 $ 52.6 $ 75.1 $ 42.7 $ 44.3 Specialty Engineered Materials 8.1 7.6 15.9 30.0 29.5 23.2 Distribution 0.2 0.1 0.4 0.7 0.5 0.7 Corporate and eliminations 0.2 2.6 2.0 9.2 5.4 4.4 Depreciation & Amortization $ 33.8 $ 20.9 $ 70.9 $ 115.0 $ 78.1 $ 72.6 EBITDA: Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 45.4 24.6 87.4 124.4 113.2 95.5 Distribution 23.9 14.7 48.1 70.2 75.9 72.2 Corporate and eliminations (39.0) (23.3) (63.8) (146.2) (144.3) (119.3) EBITDA $ 143.1 $ 68.4 $ 302.1 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 17.9 % 18.9 % 18.5 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 18.9 % 15.5 % 19.1 % 17.6 % 15.2 % 14.8 % Distribution 5.9 % 6.2 % 6.3 % 6.3 % 6.4 % 5.7 % 2 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended June 30, Six Months Ended Year Ended December 31, 2021 2020 2021 2020 2019 2018 Sales: Color, Additives and Inks $ 624.4 $ 226.8 $ 1,233.7 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) — 261.1 — 540.4 1,118.6 1,209.8 Pro forma sales $ 624.4 $ 487.9 $ 1,233.7 $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) — 22.0 — 45.0 72.9 80.3 Pro forma operating income $ 86.3 $ 54.3 $ 175.1 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 25.3 $ 10.6 $ 52.6 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) — 15.0 — 30.1 60.3 61.2 Pro forma depreciation & amortization $ 25.3 $ 25.6 $ 52.6 $ 105.2 $ 103.0 $ 105.5 EBITDA Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) — 37.0 — 75.1 133.2 141.5 Pro forma EBITDA $ 111.6 $ 79.9 $ 227.7 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 17.9 % 16.4 % 18.5 % 16.2 % 15.2 % 15.3 % Three Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Pro Forma Adjusted 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 3 December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Pro Forma Adjusted Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Pro Forma Adjusted Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 4 AVNT Q2 2021 Earnings Presentation - Website NEW.pdf AVNT Q2 2021 Earnings Presentation - Website.pdf Final - 7.19 1158am Q2 21 IR Deck Version v2

& Canada 50% 26% 16% Latin America 2020 SEGMENT, END MARKET AND GEOGRAPHY 25 GEOGRAPHY REVENUESEGMENT FINANCIALS 21%Industrial Building & Electrical & END MARKET REVENUE All data reflects 2020 Pro forma for acquisition of the Clariant Masterbatch business. (1) The total company sales and EBITDA of $3,783M and $457M, respectively, include intercompany sales eliminations and corporate costs $2,043M $331M $709M $124M $1,110M $70M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $457M$3,783M 35% 14% Building & Electrical & C O L O R , A D D I T I V E S & I N K S 2020 PF REVENUE | $2 .0 BILLION 31% 40% 22% Latin America END MARKET REGION 26 2020 figures Pro forma for acquisition of the Clariant Masterbatch business 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 24% Wire & Cable(1) 24% Electrical & 13% 11% Building & 2020 REVENUE | $709 MILLION END MARKET 58% 19% REGION 27 (1) Approximately 50% of Wire and Cable sales are associated with Fiber Optic Cabling DI S TR IBU T I ON 2020 REVENUE | $1 .1 B ILL ION 25% 20% 14% Electrical & Building & 1% 82% Latin America END MARKET REGION K E Y S U P P L I ER S 28 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 32% 27% 12% Building & Electrical & 9% (16% of sales) 34% 16%Healthcare 17% Building & Electrical & (26% of sales) 2020 figures Pro forma for acquisition of the Clariant Masterbatch business 29 26% 19% 13% 16% Building & Electrical & US & Canada (50% of sales) 45% Building & Electrical & 2% Wire & Cable 1% LATAM (8% of sales) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Adjusted Results Income from continuing operations before income taxes $ 102.6 $ 2.4 $ 105.0 Income tax expense - GAAP (22.9) — (22.9) Income tax impact of special items — (0.9) (0.9) Tax adjustments — 1.1 1.1 Net income attributable to noncontrolling interests (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 79.3 $ 2.6 $ 81.9 Net income / EPS $ 0.86 0.03 $ 0.89 Weighted-average diluted shares 92.2 92.2 92.2 Reconciliation to Consolidated Statements of Income March 31, 2021 Operating income - GAAP $ 120.4 Special items in operating income 2.4 Adjusted Operating income $ 122.8 1 Business Segment Operations March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Specialty Engineered Materials 216.5 185.3 708.8 745.7 645.8 Distribution 362.7 289.5 1,110.3 1,192.2 1,265.4 Corporate and eliminations (26.2) (19.8) (79.9) (79.0) (76.7) Sales $ 1,162.3 $ 711.5 $ 3,242.1 $ 2,862.7 $ 2,881.0 Gross margin: Color, Additives and Inks $ 197.5 $ 89.4 $ 484.4 $ 338.4 $ 353.4 Specialty Engineered Materials 64.7 52.6 207.6 200.2 171.7 Distribution 39.3 33.6 124.0 132.1 125.8 Corporate and eliminations 0.9 (4.1) (31.7) (13.5) (26.1) Gross margin $ 302.4 $ 171.5 $ 784.3 $ 657.2 $ 624.8 Selling and administrative expense: Color, Additives and Inks $ 108.7 $ 48.9 $ 303.6 $ 191.0 $ 194.9 Specialty Engineered Materials 30.5 30.3 113.2 116.5 99.4 Distribution 15.3 14.2 54.5 56.7 54.3 Corporate and eliminations 27.5 25.3 123.7 136.2 97.6 Selling and administrative expense $ 182.0 $ 118.7 $ 595.0 $ 500.4 $ 446.2 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 34.2 22.3 94.4 83.7 72.3 Distribution 24.0 19.4 69.5 75.4 71.5 Corporate and eliminations (26.6) (29.4) (155.4) (149.7) (123.7) Operating income $ 120.4 $ 52.8 $ 189.3 $ 156.8 $ 178.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 42.0 29.8 124.4 113.2 95.5 Distribution 24.2 19.5 70.2 75.9 72.2 Corporate and eliminations (24.9) (28.0) (146.2) (144.3) (119.3) Other income, net 1.5 1.6 24.3 12.1 (12.9) EBITDA $ 159.0 $ 74.3 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 19.1 % 20.0 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 19.4 % 16.1 % 17.6 % 15.2 % 14.8 % Distribution 6.7 % 6.7 % 6.3 % 6.4 % 5.7 % 2 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) — 279.4 540.4 1,118.6 1,209.8 Pro forma sales $ 609.3 $ 535.9 $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) — 23.0 45.0 72.9 80.3 Pro forma operating income $ 88.8 $ 63.5 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 27.4 $ 10.9 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) — 15.1 30.1 60.3 61.2 Pro forma depreciation & amortization $ 27.4 $ 26.0 $ 105.2 $ 103.0 $ 105.5 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) — 38.1 75.1 133.2 141.5 Pro forma EBITDA $ 116.2 $ 89.5 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 19.1 % 16.7 % 16.2 % 15.2 % 15.3 % March 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 711.5 $ — $ 711.5 $ 279.4 $ 990.9 Operating income 52.8 9.7 62.5 23.0 85.5 Interest expense, net (9.4) — (9.4) (12.8) (22.2) Other income, net 1.6 (0.1) 1.5 — 1.5 Income taxes (11.9) (1.0) (12.9) (2.4) (15.3) Net income from continuing operations attributable to Avient shareholders $ 33.1 $ 8.6 $ 41.7 $ 7.8 $ 49.5 Weighted average diluted shares 86.7 Impact to diluted shares from January 2020 equity offering 6.1 Weighted average diluted shares 92.8 EPS $ 0.53 (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 3 Three Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(2) Pro Forma Adjusted 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 (0.3) 9.2 — 9.2 Income taxes (7.9) 0.7 (7.2) (3.8) (11.0) Net income attributable to non controlling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 9.4 $ 32.4 $ 12.9 $ 45.3 Weighted average diluted shares 91.8 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 107.1 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 of the financing for the acquisition Year Ended December 31, Reconciliation to Adjusted EBITDA 2020 2019 2018 Net income from continuing operations – GAAP $ 133.8 $ 75.7 $ 87.4 Income tax expense 5.2 33.7 14.4 Interest expense 74.6 59.5 62.8 Debt extinguishment cost — — 1.1 Depreciation and amortization from continuing operations 115.0 78.1 72.6 EBITDA $ 328.6 $ 247.0 $ 238.3 Special items, before tax 66.2 61.7 59.5 Interest expense included in special items (10.1) — — Accelerated depreciation included in special items (3.2) — (3.0) Adjusted EBITDA $ 381.6 $ 308.7 $ 294.8 4 December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(3) Pro Forma Adjusted Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 213.6 $ — $ 56.1 $ 269.7 $ 45.0 $ — $ 314.7 Depreciation and amortization 115.0 (3.2) 111.8 30.1 141.9 EBITDA from continuing operations $ 328.6 $ 52.9 $ 381.5 $ 75.1 $ 456.6 December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 168.9 $ — $ 61.7 $ 230.6 $ 72.9 $ — $ 303.5 Depreciation and amortization 78.1 — 78.1 60.3 138.4 EBITDA from continuing operations $ 247.0 $ 61.7 $ 308.7 $ 133.2 $ 441.9 (3) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 5 AVNT First Quarter 2021 Earnings Presentation no recs.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf 4.29 127pm Q1 21 IR Deck Version non-GAAP Recs (002).pdf

WOON KEAT MOH Senior Vice President, President Color, Additives & Inks–Americas and Asia Woon Keat Moh (“Moh”) is senior vice president, president, Color, Additives & Inks, Americas and Asia regions for Avient Corporation, a premier provider of specialized and sustainable material solutions and services.

& Canada 64% Specialty Engineered Materials Color Additives and Inks 23% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. PY $790 $719 $107 $114 Sales Adjusted EBITDA $0.42 $0.52 - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales $70 $84 SEM $301 $260 Sales $55 $49 - 7% - 14%+20% - 11% Q4 EBITDA BRIDGE 17 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2024 G U I DAN CE 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 19 Q1 Adjusted EPS of $0.68 AP P E N DI X 21 Performance Additives 15% Pigments TiO2 Dyestuffs Polyethylene 10%Nylon Polypropylene Styrenic Block Copolymer 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 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 23%Industrial Building and END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 23 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 BILLION 34% 37% 21% END MARKET REGION 24 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION 52% 35% 25 6%Industrial 12% 10% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 26% Building & 6% 2% Defense 1% (18% of sales) 2023 AVIENT REGIONAL SALES 25% Building & (36% of sales)Transportation 22% Building & 12% 6% US & Canada (41% of sales) 59% 22% Building & LATAM (5% of sales) 26 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. Free Cash Flow Calculation December 31, 2023 Cash provided by operating activities $ 201.6 Taxes paid on gain on sale of business 104.1 Adjusted cash provided by operating activities $ 305.7 Capital expenditures $ (119.4) Free cash flow $ 186.3 Three Months Ended Year Ended 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 459.4 $ 490.8 $ 2,007.4 $ 2,355.0 Specialty Engineered Materials 259.8 300.8 1,138.2 1,044.4 Corporate (0.2) (1.2) (2.8) (2.5) Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Operating income: Color, Additives and Inks $ 61.8 $ 44.3 $ 259.9 $ 301.0 Specialty Engineered Materials 29.4 35.2 142.5 140.1 Corporate (48.1) (79.1) (205.6) (197.8) Operating income $ 43.1 $ 0.4 $ 196.8 $ 243.3 Other expense, net: $ 4.3 $ (28.4) $ 5.8 $ (59.7) Depreciation & amortization: Color, Additives and Inks $ 22.2 $ 25.2 $ 98.3 $ 101.3 Specialty Engineered Materials 19.8 20.3 81.5 48.7 Corporate 2.2 3.1 9.0 12.5 Depreciation & amortization $ 44.2 $ 48.6 $ 188.8 $ 162.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 84.0 $ 69.5 $ 358.2 $ 402.3 Specialty Engineered Materials 49.2 55.5 224.0 188.8 Corporate (45.9) (76.0) (196.6) (185.3) Other expense, net $ 4.3 $ (28.4) $ 5.8 $ (59.7) EBITDA $ 91.6 $ 20.6 $ 391.4 $ 346.1 Special items in EBITDA 22.3 86.8 110.4 162.5 EBITDA - excluding special items $ 113.9 $ 107.4 $ 501.8 $ 508.6 APM pro forma adjustments - 8 months 2022* — — — 83.1 Pro forma EBITDA $ 113.9 $ 107.4 $ 501.8 $ 591.7 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership). 3 AVNT February IR Presentation_w_Non-GAAP Recs.pdf AVNT February IR Presentation.pdf Avient corporation�investor presentation DISCLAIMER Slide Number 3 Creating a world-class�sustainable organization Top-tier sustainability performance�and recognition Slide Number 6 Slide Number 7 Portfolio transformation Slide Number 9 END MARKET observations�(% of company sales) Regional observations�(% of company sales) Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 26 AVNT Q4 2023 Earnings Presentation.pdf AVNT Q4 2023 Earnings Presentation_For Website_with Non-GAAP.pdf IR Deck - AVNT-2023.12.31 (2.12.24 9PM Milestone February 12 0905 pm).pdf Attachment 3.26.24 - Public Lender Presentation Non-GAAP Attachments (005).pdf

predecessor company BF Goodrich in 1988 and thereafter ascended in his career through various sales and commercial roles of increasing responsibility – in PP&S; Color, Additives & Inks; and Distribution. 

Our patent-pending formulation solves a long-standing challenge,” said Felipe Reichert, Global Marketing Director for Color, Additives, and Inks at Avient.

From creation to product delivery, this service speeds up every step of the color journey,” explains John Van Hulle, president, Global Color, Additives and Inks, PolyOne Corporation.