Contact your sales representative for more information, or to learn more about custom solutions for your application. 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.

Excelite IM Chemical Foaming Additives: • The only patented liquid CFA in North America and Europe • Supported with customized dosing equipment and technical assistance • Typically contains 70% active CFA content, dispersed in proprietary liquid vehicles LIQUID CFAs PROVIDE A TOP TIER-1 MOLDER WITH A CONSISTENT SOLUTION © 2020, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 Interested in learning about how Avient can help your business?

SOURCE: Repurposing gas infrastructure for hydrogen | 2020 Siemens Energy Global (siemens-energy.com) © 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.fiber-line.com/en/ https://www.siemens-energy.com/global/en/news/magazine/2020/repurposing-natural-gas-infrastructure-for-hydrogen.html https://www.siemens-energy.com/global/en/news/magazine/2020/repurposing-natural-gas-infrastructure-for-hydrogen.html

KEY CHARACTERISTICS • Formulated intermediaries • Shortens development cycles • Streamlines operations • Uses resources more effectively • Delivered pre-adjusted for pH, viscosity, and activity • Non-toxic and dust-free • Low to zero VOCs TYPICAL USES Aquamix dispersions and emulsions are suitable for use in a variety of applications, including: • Adhesives and coatings • Mattresses • Bandages and wraps • Latex-dipped goods including gloves and balloons Copyright © 2024, Avient Corporation.

KEY CHARACTERISTICS • Patented next-gen formulation that can preserve visual clarity and aesthetics in applications using recycled content • Reduces bacterial, mold, and fungal growth on the surface and through the thickness of the plastic part • Helps reduce odor, staining, discoloration, and loss of mechanical properties • Available for various processes including extrusion, injection molding, blow molding, rotational molding, and thermoforming MARKETS & APPLICATIONS These antimicrobial additives are well-suited for clear polycarbonate or plexiglass applications using recycled resin including: • Electronics • Packaging • Consumer goods • Protective shields and sneeze guards • Plexiglass windows or panels • Clear phone or tablet cases • Modular office construction • Point-of-purchase screens • Touchscreen information kiosks • Transportation infotainment screens 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

Q1 2025 Earnings webcast Avient Corporation AVNT MAY 6, 2025 Q1 2025 results 2025 full-year financial guidance Copyright © . 2025 2 Disclaimer Forward-looking statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Three Months Ended March 31, 2025 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net (loss) income attributable to Avient common shareholders $ (20.2) $ (0.22) $ 49.4 $ 0.54 Special items, after-tax 75.7 0.82 5.5 0.06 Amortization expense, after-tax 14.5 0.16 14.9 0.16 Adjusted net income / EPS $ 70.0 $ 0.76 $ 69.8 $ 0.76 March 31, Reconciliation to EBITDA and Adjusted EBITDA: 2025 2024 Net (loss) income – GAAP $ (19.9) $ 49.7 Income tax (benefit) expense (6.7) 16.8 Interest expense, net 26.9 26.6 Depreciation & amortization 45.3 44.3 EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 Adjusted EBITDA as a percent of sales 17.5 % 17.3 % 1 March 31, 2025 2024 Sales: Color, Additives and Inks $ 519.7 $ 515.3 Specialty Engineered Materials 308.4 314.4 Corporate (1.5) (0.7) Sales $ 826.6 $ 829.0 Operating income: Color, Additives and Inks $ 78.6 $ 74.8 Specialty Engineered Materials 47.1 53.4 Corporate (125.0) (34.2) Operating income $ 0.7 $ 94.0 Depreciation & amortization: Color, Additives and Inks $ 21.7 $ 21.9 Specialty Engineered Materials 21.5 19.6 Corporate 2.1 2.8 Depreciation & amortization $ 45.3 $ 44.3 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 100.3 $ 96.7 Specialty Engineered Materials 68.6 73.0 Corporate (122.9) (31.4) Other expense, net (0.4) (0.9) EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 19.3 % 18.8 % Specialty Engineered Materials 22.2 % 23.2 % Reconciliation to EBITDA and Adjusted EBITDA: Year Ended December 31, 2024 Net income – GAAP $ 170.7 Income tax expense 54.1 Interest expense 105.6 Depreciation & amortization 179.7 EBITDA $ 510.1 Special items, before tax 20.1 Interest expense included in special items (2.3) Depreciation & amortization included in special items (1.5) Adjusted EBITDA $ 526.4 Adjusted EBITDA as a percent of sales 16.2 % 2 Three Months Ended March 31, 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income from continuing operations attributable to Avient common shareholders $ 20.8 $ 0.23 Special items, after tax 22.3 0.24 Amortization expense, after-tax 15.1 0.16 Adjusted net income / EPS $ 58.2 $ 0.63 June 30, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income attributable to Avient common shareholders $ 33.6 $ 0.36 Special items, after-tax 21.8 0.24 Amortization expense, after-tax 14.8 0.16 Adjusted net income / EPS $ 70.2 $ 0.76 Year Ended December 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income attributable to Avient common shareholders $ 169.5 $ 1.84 Special items, after-tax 15.9 0.17 Amortization expense, after-tax 59.5 0.65 Adjusted net income / EPS $ 244.9 $ 2.66 3 AVNT Q1 2025 webcast slides_v16.pdf Q1 2025 Earnings webcast Slide 1 Slide 2: Disclaimer Slide 3: Q1 2025 highlights Slide 4: Q1 2025 organic revenue growth - by region Slide 5: Playbook in current environment Slide 6 Slide 7: Color, Additives & Inks – Q1 2025 performance Slide 8: Specialty Engineered Materials – Q1 2025 performance Slide 9: Global reach with a local touch Slide 10 Slide 11: 2025 financial guidance unchanged...

Q1 2025 Earnings webcast Avient Corporation AVNT MAY 6, 2025 Q1 2025 results 2025 full-year financial guidance Copyright © . 2025 2 Disclaimer Forward-looking statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Reconciliation to condensed $ Millions EPS (in $) $ Millions EPS (in $) Net (loss) income attributable to Avient common shareholders (20.2) (0.22) 49.4 0.54 Special items, after-tax 75.7 0.82 5.5 0.06 Amortization expense, after-tax 14.5 0.16 14.9 0.16 Adjusted net income / EPS 70.0 0.76 69.8 0.76 Per share amounts may not recalculate from figures present herein due to rounding 11 Reconciliation to EBITDA and Adjusted EBITDA $ Millions $ Millions Net (loss) income – GAAP (19.9) 49.7 Income tax (benefit) expense (6.7) 16.8 Interest expense, net 26.9 26.6 Depreciation & amortization 45.3 44.3 EBITDA 45.6 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) - Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA 144.7 143.1 Adjusted EBITDA as a percent of sales 17.5% 17.3% PAGE 1 OF 3 Copyright © . 2025 19 Reconciliation of Non-GAAP financial measures Reconciliation to EBITDA and Adjusted EBITDA $ Millions $ Millions Sales Color, Additives and Inks 519.7 515.3 Specialty Engineered Materials 308.4 314.4 Corporate (1.5) (0.7) Sales 826.6 829.0 Operating income Color, Additives and Inks 78.6 74.8 Specialty Engineered Materials 47.1 53.4 Corporate (125.0) (34.2) Operating income 0.7 94.0 Depreciation and amortization Color, Additives and Inks 21.7 21.9 Specialty Engineered Materials 21.5 19.6 Corporate 2.1 2.8 Depreciation and amortization 45.3 44.3 Earnings before interest, taxes, depreciation and amortization Color, Additives and Inks 100.3 96.7 Specialty Engineered Materials 68.6 73.0 Corporate (122.9) (31.4) Other expense, net (0.4) (0.9) EBITDA 45.6 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) - Depreciation and amortization included in special items (0.4) (0.5) Adjusted EBITDA 144.7 143.1 Adjusted EBITDA as a percent of sales Color, Additives and Inks 19.3% 18.8% Specialty Engineered Materials 22.2% 23.2% PAGE 2 OF 3 Copyright © . 2025 20 measures Reconciliation to condensed Three months ended March 31, 2023 $ Millions EPS (in $) Net income from continuing operations attributable to Avient common shareholders 20.8 0.23 Special items, after-tax 22.3 0.24 Amortization expense, after-tax 15.1 0.16 Adjusted net income / EPS 58.2 0.63 Reconciliation to EBITDA and Adjusted EBITDA Year ended December 31, 2024 $ Millions Net income – GAAP 170.7 Income tax expense 54.1 Interest expense 105.6 Depreciation & amortization 179.7 EBITDA 510.1 Special items, before tax 20.1 Interest expense included in special items (2.3) Depreciation & amortization included in special items (1.5) Adjusted EBITDA 526.4 Adjusted EBITDA as a percent of sales 16.2% PAGE 3 OF 3 Reconciliation to condensed Three months ended June 30, 2024 $ Millions EPS (in $) Net income attributable to Avient common shareholders 33.6 0.36 Special items, after-tax 21.8 0.24 Amortization expense, after-tax 14.8 0.16 Adjusted net income / EPS 70.2 0.76 Reconciliation to condensed Year ended December 31, 2024 $ Millions EPS (in $) Net (loss) income attributable to Avient common shareholders 169.5 1.84 Special items, after-tax 15.9 0.17 Amortization expense, after-tax 59.5 0.65 Adjusted net income / EPS 244.9 2.66 Per share amounts may not recalculate from figures present herein due to rounding Q1 2025 Earnings webcast Slide 1 Slide 2: Disclaimer Slide 3: Q1 2025 highlights Slide 4: Q1 2025 organic revenue growth - by region Slide 5: Playbook in current environment Slide 6 Slide 7: Color, Additives & Inks – Q1 2025 performance Slide 8: Specialty Engineered Materials – Q1 2025 performance Slide 9: Global reach with a local touch Slide 10 Slide 11: 2025 financial guidance unchanged...

© 2020, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 LIGHTER WEIGHT, GREATER DURABILITY FOR LUXURY VEHICLES THE CHALLENGE DENSO, a leading supplier of advanced automotive technologies, systems and components for the world’s major automakers, approached Avient looking for material science expertise and development.

© 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about how Polystrand continuous fiber reinforced composites can benefit your product, call +1.844.4AVIENT or visit www.avient.com/composites

• Custom sizes, profiles, tooling design and prototyping available for specific applications USES AND APPLICATIONS Transportation - Automotive chassis, automotive body panels, marine stringer systems, floor strengthening and stability reinforcement Consumer - Watersports paddles, sporting goods sticks, tent poles, fishing rods, archery bow limbs and arrow shafts, bicycle frames, sail battens Infrastructure & Construction - Bridge support and retrofitting repair, support beams, concrete reinforcement Healthcare - Orthopedic external fixators Energy - Wind turbine blades and stiffeners PRODUCT BULLETIN Property CFRP Barstock, Laminates & Pultruded Profiles Resin Epoxy, Vinyl ester Tensile Strength 400–500 ksi 2758–3447 MPa Flexural Strength 130–350 ksi 896–2413 MPa Flexural Modulus 18–22 msi 124–152 GPa Glass Transition Temperature 149–320 °F 65–160 °C Density 0.056–0.060 lb/in3 1.54–1.65 g/cm3 TECHNICAL PROPERTIES (Typical Values) 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.