Excelite OnePager Putty Knife PUTTY KNIFE MANUFACTURER N O R T H A M E R I C A • Reduce current scrap rate of 30% • Eliminate prominent sink marks • Minimize random short shots • Reduced scrap rate to 1% • Eliminated sink marks • Improved mold fill • Improvement in cell structure increased cell density and dimensional stability during critical cooling time Excelite™ IM Chemical Foaming Additives KEY REQUIREMENTS* WHY AVIENT? https://www.avient.com/products/polymer-additives/foaming-agents/colormatrix-excelite-chemical-foaming-additives

Say-Eng Lee Vice President & General Manager, Color, Additives & Inks Asia Say-Eng Lee is vice president and general manager for the Color, Additives & Inks business for the Asia region for Avient Corporation, a premier provider of specialized and sustainable material solutions and services. Lee joined Avient in 2000 as the general manager for the Color, Additives & Inks business for Asia.

AUTOMOTIVE OEM C E N T R A L C O N S O L E P A R T • Metallic aspect • Good surface appearance • UV resistance • Cost effective alternative to paint • Offered a paint replacement solution with a molded-in-color metallic effect • Provided color matching expertise • Utilized simulation tools to predict part aspect and suggest the best injection point for process and mold optimization • Optimized formulation for metallic effects Smartbatch Combination Colorants & Additives KEY REQUIREMENTS WHY AVIENT? All Rights Reserved https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-combination-colorants-additives Automotive oem

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. Merklein previously served in management positions at Clariant International, Ltd., including Head of Group Procurement; Vice President, Business Line Plastics and Special Applications, and Head of Region Europe for the Pigments and Additives Division.

SAY-ENG LEE Vice President & General Manager of Color, Additives & Inks Asia Say-Eng Lee is Vice President and General Manager for the Color, Additives & Inks business for the Asia region for Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Lee joined Avient in 2000 as the General Manager for the Color, Additives & Inks business for Asia.

Senior management has referenced adjusted EPS excluding the impact of additional shares issued in February 2020. On January 28, 2020, prior to the issuance of the additional shares, the Company provided guidance for adjusted EPS for the first quarter of 2020. This guidance excluded the impact of the additional shares subsequently issued in February.

Senior management has referenced adjusted EPS excluding the impact of additional shares issued in February 2020. On January 28, 2020, prior to the issuance of the additional shares, the Company provided guidance for adjusted EPS for the first quarter of 2020. This guidance excluded the impact of the additional shares subsequently issued in February.

SILICONE DISPERSION TECHNOLOGIES Colorant and additive dispersions that provide enhanced performance and color consistency WE’RE HERE TO HELP With our broad portfolio of color and additive silicone dispersions, we can provide the value, consistency and reliability needed to get products to market quickly and successfully. We specialize in color and additive technologies, offering both standard and customized solutions across all silicone platforms: High Consistency Rubber (HCR), Liquid Silicone Rubber (LSR), Room Temperature Vulcanization (RTV), as well as many other thermoset carrier systems. SILICONE ADDITIVES TO MEET TODAY’S CHALLENGES We understand your needs for performance, reliability and availability.

FX +8.5% FX -0.4% Total Avient +8.1% Note: Regional Sales Percentages exclude impact of foreign exchange COLOR, ADDITIVES & INKS SEGMENT ( Q 3 2 0 2 4 P E R F O R M A N C E V S Q 3 2 0 2 3 ) $487 $522 Q3 23 Q3 24 $89 $97 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 7 + 7% (+8% excluding FX) + 9% (+11% excluding FX) 18.3% +40 bps *18.7% * * Adjusted EBITDA Margin % • Sales growth driven by winning new product specifications in consumer & packaging, strong underlying demand in healthcare and improving demand in building & construction • Favorable mix and raw material deflation contributed to EBITDA margin expansion SPECIALTY ENGINEERED MATERIALS SEGMENT ( Q 3 2 0 2 4 P E R F O R M A N C E V S Q 3 2 0 2 3 ) $268 $295 Q3 23 Q3 24 $51 $57 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 8 • Sales growth driven by restocking in healthcare & consumer end markets and strong underlying demand for composite applications used in building & construction, energy and defense end markets • Favorable mix contributed to EBITDA margin expansion + 10% (+10% excluding FX) + 12% (+13% excluding FX) 19.0% +40 bps *19.4% * * Adjusted EBITDA Margin % 2 0 2 4 G U I D A N C E FY 20 24 GUIDA NC E Previous (Aug 6) Current Adjusted EPS $2.55 to $2.70 $2.63 to $2.67 Adjusted EBITDA $515 to $540 million $525 to $530 million Interest Expense $105 million $104 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures & Investment in S/4 Hana ~$140 million ~$140 million 10 11 • Investor Day to be held December 4, 2024 at the NYSE, beginning at 10AM • The focus will be to do a deep dive on the Company’s strategy • Registration and microsite will be available in early November 20 24 AVI ENT INVESTOR DAY A P P E N D I X 18 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RA W MATERI AL BA SKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 20 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 21 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR , AD DI TI VES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 22 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPEC IA LTY ENGI NEER ED MATERI ALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 23 B Y E N D M A R K E T 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. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations. Three Months Ended September 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 38.2 $ 0.41 $ 5.1 $ 0.06 Special items, after-tax 6.6 0.07 32.0 0.35 Amortization expense, after-tax 15.0 0.16 15.2 0.16 Adjusted net income / EPS $ 59.8 $ 0.65 $ 52.3 $ 0.57 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended September 30, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 38.7 $ 5.1 Income tax expense (benefit) 11.3 (0.1) Interest expense, net 26.9 30.3 Depreciation & amortization 45.1 46.4 EBITDA from continuing operations $ 122.0 $ 81.7 Special items, before tax 9.7 43.2 Interest expense included in special items (1.3) (2.2) Depreciation & amortization included in special items (0.4) — Adjusted EBITDA $ 130.0 $ 122.7 Adjusted EBITDA as a percent of sales 15.9 % 16.3 % 1 Three Months Ended September 30, 2024 2023 Sales: Color, Additives and Inks $ 521.5 $ 486.5 Specialty Engineered Materials 294.6 267.9 Corporate (0.9) (0.7) Sales $ 815.2 $ 753.7 Operating income: Color, Additives and Inks $ 75.5 $ 64.5 Specialty Engineered Materials 36.4 30.3 Corporate (34.7) (60.5) Operating income $ 77.2 $ 34.3 Depreciation & amortization: Color, Additives and Inks $ 21.9 $ 24.6 Specialty Engineered Materials 20.7 20.5 Corporate 2.5 1.3 Depreciation & amortization $ 45.1 $ 46.4 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 97.4 $ 89.1 Specialty Engineered Materials 57.1 50.8 Corporate (32.2) (59.2) Other (expense) income, net (0.3) 1.0 EBITDA from continuing operations $ 122.0 $ 81.7 Special items, before tax 9.7 43.2 Interest expense included in special items (1.3) (2.2) Depreciation & amortization included in special items (0.4) — Adjusted EBITDA $ 130.0 $ 122.7 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 18.7 % 18.3 % Specialty Engineered Materials 19.4 % 19.0 % 2 Year Ended December 31, 2023 Operating income: Color, Additives and Inks $ 259.9 Specialty Engineered Materials 142.5 Corporate (205.6) Operating income $ 196.8 Depreciation & amortization: Color, Additives and Inks $ 98.3 Specialty Engineered Materials 81.5 Corporate 9.0 Depreciation & amortization $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 358.2 Specialty Engineered Materials 224.0 Corporate (196.6) Other income, net 5.8 EBITDA from continuing operations 391.4 Special items, before tax 114.6 Interest expense included in special items (2.3) Depreciation & amortization included in special items (1.9) Adjusted EBITDA $ 501.8 3 Avient Q3 Earnings Webcast Slides w_Appendix and Non-GAAP.pdf 2024 AVNT Q3 Webcast Slides w non-GAAP.pdf Q3 Avient Webcast Slides with Non-GAAP Recs.pdf Appendix Slides for webcast.pdf IR Deck - AVNT-2024.09.30 - 10.30.24 3PM (002).pdf Attachment

Patterson added, "Our updated guidance of $2.60 incorporates additional weakness associated with the recently announced COVID lockdowns in China." Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Sales: Color, Additives and Inks $ 565.6 $ 586.6 $ 1,864.2 $ 1,820.3 Specialty Engineered Materials 258.2 231.7 743.6 685.3 Corporate and eliminations (0.5) (0.3) (1.3) 2.9 Sales $ 823.3 $ 818.0 $ 2,606.5 $ 2,508.5 Gross margin: Color, Additives and Inks $ 161.3 $ 172.1 $ 546.8 $ 563.0 Specialty Engineered Materials 66.9 61.4 201.3 192.6 Corporate and eliminations (32.8) (17.9) (37.4) (28.3) Gross margin $ 195.4 $ 215.6 $ 710.7 $ 727.3 Selling and administrative expense: Color, Additives and Inks $ 92.7 $ 105.3 $ 290.1 $ 321.1 Specialty Engineered Materials 35.5 31.4 96.4 94.2 Corporate and eliminations 26.6 26.1 81.3 82.4 Selling and administrative expense $ 154.8 $ 162.8 $ 467.8 $ 497.7 Operating income: Color, Additives and Inks $ 68.6 $ 66.8 $ 256.7 $ 241.9 Specialty Engineered Materials 31.4 30.0 104.9 98.4 Corporate and eliminations (59.4) (44.0) (118.7) (110.7) Operating income $ 40.6 $ 52.8 $ 242.9 $ 229.6 Depreciation & amortization: Color, Additives and Inks $ 24.2 $ 26.6 $ 76.1 $ 79.2 Specialty Engineered Materials 12.9 7.9 28.4 23.8 Corporate and eliminations 2.7 2.1 9.2 4.1 Depreciation & Amortization $ 39.8 $ 36.6 $ 113.7 $ 107.1 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 92.8 $ 93.4 $ 332.8 $ 321.1 Specialty Engineered Materials 44.3 37.9 133.3 122.2 Corporate and eliminations (56.7) (41.9) (109.5) (106.6) Other (expense) income, net (32.3) 1.6 (31.3) 4.3 EBITDA $ 48.1 $ 91.0 $ 325.3 $ 341.0 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. In addition, operating income before the effect of special items is a component of Avient annual and long-term employee incentive plans and is used in debt covenant computations.